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Revision: 385
Committed: Mon Jan 17 15:56:35 2022 UTC (2 years, 8 months ago) by tony
File size: 33865 byte(s)
Log Message:
Return nil result for UDR procedures when an exception occurs

File Contents

# User Rev Content
1 tony 381 FBINTF Change Log version (1.4-0 Build 13090) Fri, 14 Jan 2022 23:07:28 +0000
2 tony 363
3 tony 381 1. Support package fbudr added for support of User Defined Routines (UDRs), and package
4     fbudrtestbed for client side debugging of UDR libraries.
5    
6     2. Package layout changed with introduction of udr support. IB*.pas files moved from
7     root directory to "client". IBHeader move to "Client".
8    
9     3. Delphi packages: all packages now compile .dcp and .bpi files to either
10     fbintf\Win32\Debug or fbintf\Win64\Debug by default. Please remove any pre-existing
11     fbintf.dcp and fbintf.bpi files from other locations.
12    
13     4. Client side journaling support added. Interface changes
14 tony 363 IAttachment
15     function JournalingActive: boolean;
16     function GetJournalOptions: TJournalOptions;
17     function StartJournaling(aJournalLogFile: AnsiString): integer; overload;
18     function StartJournaling(aJournalLogFile: AnsiString; Options: TJournalOptions): integer; overload;
19 tony 371 function StartJournaling(S: TStream; Options: TJournalOptions): integer; overload;
20 tony 363 procedure StopJournaling(RetainJournal: boolean);
21    
22 tony 381 5. Transactions may now be given a local transaction name:
23 tony 363 IFirebirdAPI
24     function StartTransaction(Attachments: array of IAttachment;
25     TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
26     TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit;
27     aName: AnsiString=''): ITransaction; overload;
28     function StartTransaction(Attachments: array of IAttachment;
29     TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
30     TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit;
31     aName: AnsiString=''): ITransaction; overload;
32    
33     IAttachment
34     function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
35     function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
36     function StartTransaction(TPB: array of byte;
37     DefaultCompletion: TTransactionCompletion=taCommit;
38     aName: AnsiString=''): ITransaction; overload;
39     function StartTransaction(TPB: ITPB;
40     DefaultCompletion: TTransactionCompletion=taCommit;
41     aName: AnsiString=''): ITransaction; overload;
42    
43     ITransaction
44     function GetTransactionName: AnsiString;
45     procedure SetTransactionName(aValue: AnsiString);
46    
47 tony 381 6. Additional Transaction information
48 tony 363 ITPB.function AsText: AnsiString; {Returns TPB as a text string}
49    
50     ITransaction
51     function GetDefaultCompletion: TTransactionCompletion;
52     function GetJournalingActive(attachment: IAttachment): boolean; {attachment must be specified when multi-database transaction}
53    
54 tony 381 7. New IAttachment helper functions
55 tony 363 function HasTable(aTableName: AnsiString): boolean;
56 tony 371 function HasFunction(aFunctionName: AnsiString): boolean;
57     function HasProcedure(aProcName: AnsiString): boolean;
58 tony 363 function GetAttachmentID: integer;
59 tony 371 function GetCharSetID: integer;
60 tony 363
61 tony 381 8. IStatement: if the BatchRowLimit is set to maxint, the maximum possible buffer size
62 tony 371 will be allocted for batch operations.
63    
64 tony 381 9. IStatement, IColumnMetaData and ISQLParam all now consistently provide:
65 tony 371 function GetStatement: IStatement;
66     function GetTransaction: ITransaction;
67     function GetAttachment: IAttachment;
68    
69 tony 381 10. Internal: a more disciplined approach to the handling of Firebird.IReferenceCounted
70     interfaces.
71 tony 371
72 tony 381 11. New interface type: IFBNumeric. IFBNumeric is implemented in the unit FBNumeric
73     and concentrates all handling of Fixed Point numbers. New ISQLItem and ISQLParam
74     functions getAsNumeric and setAsNumeric allow for direct retrival and manipulation
75     of numerics without loss of precision.
76 tony 371
77 tony 381 12. TryStrToNumeric and NumericToDouble moved from IBUtils to FBNumeric.
78 tony 371
79 tony 381 13. ISQLParams new method "Clear"
80 tony 371
81 tony 381 14. Connection Info (e.g. ODS Version, Remote Protocol) now retrieved on first
82 tony 375 request rather than on attachment connect.
83 tony 371
84 tony 385 15. IStatus.IBDataBaseErrorMessages now defaults to [ShowIBMessage]. This reflects the
85     fact that SQLCodes are soon to be deprecated. In the future, the other options
86     will be silently ignored if SQLCode support is not present in the Firebird
87     Client library.
88 tony 375
89 tony 385
90 tony 359 FBINTF Change Log version (1.3-3 Build 12935) Mon, 06 Dec 2021 23:17:13 +0000
91    
92     1. Fix compile error with fpc trunk (3.3.1 and later), due to type change to tzname in "unix" unit.
93    
94     2. Remove constraint in IAttachment.HasScollableCursors that returned false when
95     using remote protocol. Scrollable cursors with remote database expected to
96     be support for Firebird 4.0.1 onwards. Note: Firebird 4.0.0 will return
97     a not supported error.
98    
99     3. IStatement: new function;
100     TStatementFlag = (stHasCursor,stRepeatExecute,stScrollable);
101     TStatementFlags = set of TStatementFlag;
102     function GetFlags: TStatementFlags;
103    
104     4. Revised behaviour for IStatement.ExecuteQuery in order to preserve backwards
105     compatibility.
106     In Firebird 5, Update..Returning may returns multiple rows and hence the statemen
107     type changes from ExecProcedure to Select. So that ExecuteQuery can continue
108     to be used with Update...Retruning statements that return a singleton row,
109     instead of raising an exception when ExecuteQuery is used with a (SELECT) statement,
110     it will open the cursor and return the first row only.
111    
112     5. ITransaction: new functions:
113     function GetIsReadOnly: boolean;
114     function GetTransactionID: integer;
115     function GetTrInformation(Requests: array of byte): ITrInformation; overload;
116     function GetTrInformation(Request: byte): ITrInformation; overload;
117    
118     The latter two return the Transaction Information block. The first two extract
119     information the Transaction Information block
120    
121     6. New function TSQLTokeniser.ReadCharacters
122     Used internally.
123    
124     7. IStatement: GetProcessedSQL bug fix. No longer raises and error if SQL contains
125     parameter placeholders instead of named parameters.
126    
127     8. ITransaction (Firebird 3 and later): An exception raised when freeing an underlying
128     transaction handle is now ignored if Rollback/Commit is called with Force=true
129    
130 tony 371 9. Tidy up of exception handling code. Under the legacy API, fb_interpret is now
131     used to get an IBError Message instead of isc_interprete.
132    
133     10. Internal tidyup. Native code now used for decoding integers and the events
134     buffer. Avoids dependencies on fbclient functions isc_portable_integer,
135     isc_event_block and isc_event_counts.
136    
137     11. New IAttachment function
138     function GetAttachmentID: integer;
139    
140     12. Internal changes to TFBClientAPI, TFBAttachment and TFBTransaction and TFB30
141     subclasses to enable UDR support.
142    
143 tony 356 FBINTF Change Log version (1.3-2 Build 12889) Sun, 24 Oct 2021 13:49:28 +0100
144 tony 347
145     1. TFBClientAPI.GetProcAddr. Add check for nil reference.
146    
147     2. IStatement: new methods:
148     procedure SetStaleReferenceChecks(Enable:boolean); {default true}
149     function GetStaleReferenceChecks: boolean;
150    
151     In previous versions, stale reference checks were always enabled. This allows the
152     user to disable them on a per statement basis. Note this can risk out-of-date
153     statement BLR. See User Guide.
154    
155 tony 348 3. IBUtils: TSQLwithNamedParamsTokeniser now recognises a CASE...END block within a
156     stored procedure and hence avoids replacing named parameters within a containing
157     BEGIN..END block.
158    
159 tony 349 4. ISQLParam: using a string value to set an integer field with a scale factor of
160     zero is now treated as a special case to avoid the risk of floating point
161     rounding errors affecting pure integers.
162    
163     5. ISQLParam: Review and tidy-up of SetAsString for numeric types.
164    
165     6. ISQLParam is now subclassed from IParamMetaData, which provides access to the mutable
166     SQL Parameter metadata (methods moved from ISQLParam).
167    
168     7. ISQLParam: new method
169     function getColMetadata: IParamMetaData;
170     This instance of IParamMetaData returns the original column metadata which is unmutable.
171     Note: ISQLParam metadata can change after a parameter value has been set e.g when
172     setting a VARCHAR column to an integer value.
173    
174 tony 350 8. IStatement: can now set cursor name when opening a cursor. New overloaded method:
175     procedure Prepare(CursorName: AnsiString; aTransaction: ITransaction=nil); overload;
176     also IAttachment:
177     function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; CursorName: AnsiString=''): IStatement; overload;
178     function Prepare(transaction: ITransaction; sql: AnsiString; CursorName: AnsiString=''): IStatement; overload;
179     function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
180     aSQLDialect: integer; GenerateParamNames: boolean=false;
181     CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
182     function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
183     GenerateParamNames: boolean=false;
184     CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
185 tony 349
186 tony 350 9. Support for scrollable cursors added. New/updated methods:
187     IAttachment:
188 tony 352 function HasScollableCursors: boolean;
189 tony 350 function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
190     Scrollable: boolean=false): IResultSet; overload;
191     function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
192     function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
193     params: array of const): IResultSet; overload;
194     function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false;
195     params: array of const): IResultSet; overload;
196     function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
197     params: array of const): IResultSet; overload;
198     function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
199     Scrollable: boolean=false): IResultSet; overload;
200     function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
201     function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean;
202     params: array of const): IResultSet; overload;
203     function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
204     function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean;
205     params: array of const): IResultSet; overload;
206     IStatement:
207     function OpenCursor(Scrollable: boolean; CursorName: AnsiString =''; aTransaction: ITransaction=nil): IResultSet; overload;
208     IResultSet:
209     function FetchPrior: boolean; {fetch previous record}
210     function FetchFirst:boolean; {fetch first record}
211     function FetchLast: boolean; {fetch last record}
212     function FetchAbsolute(position: Integer): boolean; {fetch record by its absolute position in result set}
213     function FetchRelative(offset: Integer): boolean; {fetch record by position relative to current}
214     function IsBof: boolean;
215    
216 tony 353 10. IArray: tidyup of SetAsString method to ensure correct handling of fixed point numbers.
217 tony 350
218 tony 353 11. IBUtils: TSQLTokeniser. CRLF now combined by low level parser into sqltEOL token. This
219     may be noticeable when a line separator occurs inside quoted text. The quoted text
220     output by the tokeniser will now use the platform specific lineEnding regardless
221     of whether the input uses the CRLF or LF as a line separator.
222 tony 350
223 tony 353 12. IStatement, IResultsSet: Support for scrollable cursors added (note: local databases only)
224    
225    
226 tony 345 FBINTF Change Log version (1.3-1 Build 12776) Mon, 23 Aug 2021 11:09:33 +0100
227    
228     1. Integer decodes in information blocks (e.g. IDBInfoItem) widened from 32 bit to 64-bit integers.
229    
230     2. Support for inline blob encoding. Blob values pass using the "SetAsString" method
231     will now be encoded inline (i.e. as part of the parameter buffer) if they are
232     shorter than a pre-set limit. Longer values continue to be saved as blobs as a
233     separate server interaction. This is intended as a performance optimisation.
234    
235     The pre-set limit defaults to 8192 bytes and can be inspected/modified using the new
236     IAttachment interface functions:
237    
238     function GetInlineBlobLimit: integer;
239     procedure SetInlineBlobLimit(limit: integer);
240    
241     3. Support for Firebird 4 IBatch interface added. This is largely transparent to the API
242     user as the functionality is embedded in the implementation of the IStatement
243     interface. Three new functions are defined:
244    
245     procedure AddToBatch;
246     function ExecuteBatch(aTransaction: ITransaction=nil): IBatchCompletion;
247     procedure CancelBatch;
248     function GetBatchCompletion: IBatchCompletion;
249     function GetBatchRowLimit: integer;
250     procedure SetBatchRowLimit(aLimit: integer);
251    
252     Also
253    
254     function IsInBatchMode: boolean; {true after call to execute(eaDefer)}
255     function HasBatchMode: boolean; {true if and only if IBatch Supported}
256    
257     For more information see the User Guide.
258    
259     4. Default error message contents. Now aligned with User Guide section 10.2 i.e. error messages
260     provided with the EIBInterBaseError now include all three parts.
261    
262     5. Firebird.pas and include files updated to Firebird 4.0.0
263    
264     6. New IStatement method: function GetSQLStatementTypeName: AnsiString;
265     Returns SQL Statement type as a text string;
266    
267     7. ISQLData.AsInteger and AsInt64 now use "Round" to convert a float field to
268     an integer instead of "trunc". This is for compatibility with TFloatField.AsInteger.
269    
270 tony 340 FBINTF Change Log version (1.2-1 Build 12552) Wed, 09 Jun 2021 13:05:40 +0100
271 tony 338
272     1. Big fix for Firebird 4.0. A internal change in Firebird 4.0.0 from RC1 flushed out a
273     typo in FB30Statement.pas that caused an unknown parameter error.
274    
275 tony 319 FBINTF Change Log version (1.2-0 Build 12520) Fri, 19 Feb 2021 13:27:23 +0000
276 tony 308
277 tony 315 1. Imported (Firebird) constants updated for Firebird 4.
278    
279     2. Firebird.pas from Firebird 4 integrated into source code tree.
280    
281     3. Added Support for TIMETAMP WITH TIME ZONE and TIME WITH TIME ZONE data types.
282    
283     4. Added Support for SQL_DEC16, SQL_DEC34 and extended NUMERIC precision.
284    
285     5. New unit 'FBClientLib.pas' added and provides new interface IFBIMasterProvider.
286     QueryInterface may be used to coerce this interface from IFirebirdAPI. The
287     interface provides a single method "function GetIMasterIntf: IMaster". This provides
288     type safe access to the Firebird IMaster interface and avoids the need to turn
289     off object checks when coercing "function GetIMaster: TObject" to IMaster.
290    
291     6. New IFirebirdAPI Calls:
292     function HasLocalTZDB: boolean;
293     function HasTimeZoneSupport: boolean;
294     function HasExtendedTZSupport: boolean;
295     procedure SQLDecFloatEncode(aValue: tBCD; SQLType: cardinal; bufptr: PByte);
296     function SQLDecFloatDecode(SQLType: cardinal; scale: integer; bufptr: PByte): tBCD;
297    
298     7. New IAttachment Calls:
299     function HasDecFloatSupport: boolean;
300     function GetTimeZoneServices: ITimeZoneServices;
301     function HasTimeZoneSupport: boolean;
302    
303     8. New Interface ITimeZoneServices.
304    
305     9. New ISQLData API Calls:
306     procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
307     procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
308     procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
309     procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
310     function GetAsUTCDateTime: TDateTime;
311     function GetAsBCD: tBCD;
312    
313     10. New ISQLParam API Calls
314     procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
315     procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
316     procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
317     procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
318     function GetAsUTCDateTime: TDateTime;
319     function GetAsBCD: tBCD;
320     function GetStatement: IStatement;
321     function GetTransaction: ITransaction;
322     procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
323     procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
324     procedure SetAsDateTime(aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
325     procedure SetAsDateTime(aValue: TDateTime; aTimeZone: AnsiString); overload;
326     procedure SetAsUTCDateTime(aUTCTime: TDateTime);
327     procedure SetAsBcd(aValue: tBCD);
328    
329     11. New IArray API Calls
330     procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
331     procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
332     procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
333     procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
334     function GetAsUTCDateTime(index: array of integer): TDateTime;
335     procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
336     procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZone: AnsiString); overload;
337     procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
338     procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
339    
340     12. Utility functions in IBUtils
341     function ParseDateTimeTZString(aDateTimeStr: Ansistring; var aDateTime: TDateTime;
342     var aTimezone: AnsiString; aFormatSettings: TFormatSettings; TimeOnly: boolean=false): boolean;
343     procedure FBDecodeTime(aTime: TDateTime; var Hour, Minute, Second: word; var DeciMillisecond: cardinal);
344     function FBEncodeTime(Hour, Minute, Second, DeciMillisecond: cardinal): TDateTime;
345     function FBFormatDateTime(fmt: AnsiString; aDateTime: TDateTime): AnsiString;
346     function FormatTimeZoneOffset(EffectiveTimeOffsetMins: integer): AnsiString;
347     function DecodeTimeZoneOffset(TZOffset: AnsiString; var dstOffset: integer): boolean;
348    
349     13. IDPB, ITPB and ISPB: new interface method
350     function AddByTypeName(ParamTypeName: AnsiString): IDPBItem/ITPBItem/ISPBItem;
351     This is used to add a parameter block item by the string equivalent of its
352     symbolic type name. e.g. DPB.AddByTypeName('isc_dpb_user_name').AsString := '...'
353    
354     14. IDPBItem/ITPBItem/ISPBItem: new interface method:
355     function getParamTypeName: AnsiString;
356    
357     15. fb_shutdown now called before unloading Firebird library. This can avoid a
358     SIGEVENT error when a programme using the embeded server is unloaded.
359    
360     FBINTF Change Log version (1.1-6 Build 12237) Tue, 21 Jul 2020 08:54:21 +0100
361    
362 tony 308 1. GetImplementationVersion now correctly returns '3.0' for Firebird 3 API
363     with a Firebrid 3 client library.
364    
365     2. Linux Only: FIREBIRD environment variable is now checked when loading the client library.
366     If a client library path is not explicitly provided and the FIREBIRD environment
367     variable is set then the directory given by this variable and any 'lib' subdirectory
368     are searched for the Firebird client library. Only if none is found, is the default
369     client library used.
370    
371     3. IUtil.FormatStatus now used to format error messages when using new API
372    
373     4. Fixed Array SDL: array_desc_scale now correctly encoded as a signed integer.
374    
375     5. SQL_TEXT handling changed. When the value of an SQL_TEXT (i.e. fixed width string) column is
376     returned using GetAsString and the string codepage is UTF8, the string is truncated so
377     that the byte length corresponds to the number of characters specified for the column.
378     SQL_TEXT strings are no longer automatically trimmed to remove all trailing white space. This is
379     correct behaviour but may affect some implementations that relied upon automatic
380     trimming of trailing white space.
381    
382     6. New IFirebirdAPI Calls:
383     function GetClientMajor: integer;
384     function GetClientMinor: integer;
385    
386 tony 309 7. IColumnMetaData and IArrayMetaData: new method
387     function GetCharSetWidth: integer;
388 tony 308
389 tony 315 FBINTF Change Log version (1.1-5 Build 12022) Fri, 17 Apr 2020 10:35:55 +0100
390 tony 309
391 tony 287 1. ISQLParams.GetHasCaseSensitiveParams added. Returns true if param names are
392     case sensitive
393    
394     2. Single line SQL comments starting with '--' are now recognised by SQL Parser.
395    
396 tony 291 3. New API Calls:
397     IColumnMetaData.GetStatement
398     IColumnMetaData.GetTransaction
399 tony 315 ISQLData.GetStrDataLength
400 tony 291 IResults.GetStatement
401     IAttachment.OpenBlob (using Blob metadata)
402     IAttachment.OpenArray (using array metadata)
403    
404     4. FBMessages: removal of unused messages
405    
406     5. TFBArray.Create (2nd case): ensure that FFirebirdClientAPI is correctly set.
407    
408     6. TIBSQLStatementType: SQLSavePoint added to end of enumeration.
409    
410 tony 280 FBINTF Change Log version (1.1-4 Build 11515) Fri, 28 Dec 2018 10:04:19 +0000
411 tony 265
412     1. Fix a problem with the SQL parameter parser that failed to recognise parameters
413     where the second character of the parameter name is a numeric.
414    
415 tony 266 2. New method for IAttachment: procedure getFBVersion(version: TStrings);
416     This returns the isc_version connection information as one or more lines.
417     This is the same information as returned by isql with the -z option.
418 tony 265
419 tony 270 3. If -dFIREBIRD3APIONLY is used as a compiler option then the legacy Firebird API
420     is no longer compiled in. Likewise, if -dLEGACYFIREBIRDAPIONLY is used as a
421     compiler option then the Firebird 3 API is no longer compiled in.
422 tony 266
423 tony 270 4. IColumnMetaData: new method.
424    
425     TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
426     dfDateTime, {SQL DATETIME}
427     dfTime);
428    
429     function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
430    
431     This returns the max. number of characters returned by the "AsString" method
432     when the SQL type of the column is respectively TIMESTAMP, DATETIME or TIME.
433    
434     5. Additional argument for IAttachment.PrepareWithNamedParameters -
435     CaseSensitiveParams: boolean = false
436    
437     If this argument is set to true then SQL parameter names are assumed to be case
438     sensitive and must be referenced (using ISQLParams.ByName) using the case
439     sensitive name.
440    
441     6. Bug fix: when setting a query parameter, it is now possible, when the parameter
442     is of type VarChar or Char to set the parameter to a numeric value (e.g. using
443     .AsCurrency) and then subsequently to update the value to a non-numeric string
444     using .AsString.
445    
446    
447    
448 tony 263 FBINTF Change Log version (1.1-3) Wed, 05 Dec 2018 14:28:10 +0000
449 tony 238
450     1. DARWIN only syntax error: fix missing semi-colon in TFBClientAPI.LoadIBLibrary
451    
452 tony 263 2. Restrict IsMultiThread check to Unix only for compatibility with
453     https://bugs.freepascal.org/view.php?id=30535
454    
455     3. New SQL Tokeniser added to IBUtils. This is used to pre-process SQL with
456     named parameters and is intended to avoid problems with (e.g.) Execute Block
457     and processing internal parameters as statement parameters.
458    
459     4. New interface IFirebirdLibrary provides access to the underlying firebird DLL
460     or shared object. Available via a new member (GetFBLibrary) of IFirebirdAPI.
461    
462     5. New function added to IB.pas
463    
464     function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary
465    
466     This allows a Firebird Library to be loaded from an explicit path. use the
467     IFirebirdLibrary.GetFirebirdAPI member function to get the Firebird API using
468     the library. It is possible to load Firebird libraries from different locations
469     simultaneously, each with a distinct IFirebirdAPI.
470    
471 tony 233 FBINTF Change Log version (1.1-2) Mon, 16 Apr 2018 09:30:32 +0100
472 tony 59
473 tony 209 1. Firebird.pas: {$OBJECTCHECKS OFF} added to file to avoid runtime error when
474     program compiled with -CR command line switch.
475    
476     2. IServiceManager additions (informational):
477     function getProtocol: TProtocol;
478     function getPortNo: AnsiString;
479    
480     3. IServiceManager improved error handling. Interfaces changed:
481     function Start(Request: ISRB; RaiseExceptionOnError: boolean=true): boolean;
482     function Query(SQPB: ISQPB; Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
483     function Query(Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
484    
485     4. IAttachment addition (informational)
486     function GetSecurityDatabase: AnsiString;
487    
488     5. IStatement: performance counters now updated after each Fetch. GetPerfStatistics
489     thus now returns accumulated stats for a select statement from opening a cursor
490     up to the last fetch.
491    
492     6. DARWIN: uloadlibrary.inc bug fix. Many thanks to Luigi Naimi for correcting
493     the problem.
494    
495     7. Type change: "TPerfCounters = array[TPerfStats] of Int64". Note "Int64"
496     replaces deprecated "comp" type.
497    
498 tony 217 10. Testsuite Test10 updated to include thread synchronisation for event reporting.
499 tony 209
500 tony 231 11. URL Connection Strings: inet4 and inet6 now recognised.
501 tony 217
502 tony 231 12. IBUtils: Parse and Make Connect String now recognise URL style loopback syntax.
503    
504 tony 233 13. IAttachment.CharSetName2CharSetID is now performed case insensitive.
505 tony 231
506 tony 233
507 tony 209 FBINTF Change Log version (1.1-1) Tue, 27 Feb 2018 16:51:16 +0000
508    
509 tony 107 1. IBUtils.QuoteIdentifierIfNeeded: Add check for space character.
510    
511 tony 109 2. IAttachment: add two new methods
512     function HasDefaultCharSet: boolean;
513     function GetDefaultCharSetID: integer;
514    
515     These return, respectively, true if a connection default character set was
516 tony 117 specified and the character set id of the connection default character set.
517     The DefaultCharSetID is cached when the connection is opened and hence does not
518     require a database lookup.
519 tony 109
520 tony 110 3. Avoid exception when a text blob is a stored procedure parameter.
521 tony 109
522 tony 111 4. Update test suite to include a test for a stored proc returning a text blob.
523    
524 tony 117 5. IAttachment: add
525     function GetRemoteProtocol: AnsiString;
526     function GetODSMajorVersion: integer;
527     function GetODSMinorVersion: integer;
528 tony 143 function GetAuthenticationMethod: AnsiString;
529 tony 117
530     These results are cached when the connection is opened and hence do not
531     require a database lookup.
532    
533     6. IAttachment: add "function GetConnectString: AnsiString;" This returns the
534     connect string used to create/connect to the database.
535    
536     7. IAttachment: Create Database using SQL statement. The username and password
537     are now extracted and used to populate a DPB made available via IAttachment.getDPB.
538     It is now possible to use IAttachment disconnect/connect to reconnect to
539     a database for which the initial connection was established by a create
540 tony 120 database sql statement. Available in FPC only.
541 tony 117
542     8. Update Test 1 to test 5, 6 and 7 above.
543    
544     9. IBUtils code tidy up.
545    
546 tony 143 10. Parameter Block interfaces "find" method. As documented, this should have
547     returned a nil interface when the item could not be found. Instead, an empty
548     interface item was returned. "Find" now works as documented and will return
549     a nil interface if the item cannot be found.
550    
551     11. DBInformation: support added for isc_info_active_tran_count and isc_info_creation_date.
552    
553     12. DBInformation: New interfaces: IDIRB and IDIRBItem added to support DB Information
554     requests with additional parameters. This is to enable support for fb_info_page_contents
555     (return of page contents). Response to fb_info_page_contents returned as
556     a string with code page CP_NONE.
557    
558     13. DBInformation: Support for fb_info_pages_used and fb_info_pages_free added, plus
559     test suite updated.
560    
561     14. DBInformation: Support for fb_info_crypt_key (Firebird 3.0.3 onwards) added as
562     a string type, and fb_info_conn_flags (Firebird 3.0.3 onwards) added as an integer type.
563    
564     15. Service Manager: List of protocols supported expanded to include inet, wnet and xnet.
565     An overloaded version of IIFirebirdAPI.GetServiceManager also allows a non
566     default connection port to be specified.
567    
568 tony 107 FBINTF Change Log version (1.1-0) Sun, 07 Jan 2018 15:20:02 +0000
569    
570 tony 59 1. Fix issues with setting SQL Param values using SetAsString with Numeric types.
571     Scale is no longer ignored.
572    
573     2. Fix issues with setting SQL Param values using SetAsString with Date values
574     not in locale format but which are recognised by Firebird. Date values that
575     cannot be converted to a string using Pascal library are now passed through
576     to Firebird as Text Strings.
577    
578 tony 60 3. Lookup character set name by codepage amended to ensure that CP_UTF8 returns
579     UTF8 and not UNICODE_FSS.
580    
581     4. Charset ID problem. When using Firebird 3, with no default database character set
582     and a column has a non-default collation specified, an incorrect character set
583     id was being reported that could result in a 'division by zero' error when
584     used by IBX. This has now been fixed.
585    
586     5. Move GetCharsetName, CharSetID2CodePage, CodePage2CharSetID, CharSetName2CharSetID,
587     CharSetWidth from IFirebirdAPI to IAttachment. This is a better data model as
588     the character sets supported can be updated on a per database basis. That is
589     it is possible to add a (Firebird) user defined character set to a database.
590    
591     6. Add RegisterCharSet to IAttachment. This is used to register a user defined character
592     set supported by Firebird with the API.
593    
594 tony 61 7. Add missing isc_info_db_read_only to list of decoded Database Information items
595     in FBOutputBlock.pas and update test suite to include this item.
596 tony 60
597 tony 63 8. FB30Client: avoid always using "StartMultiple" when only a single database attachment.
598 tony 61
599 tony 68 9. Loading Windows fbclient.dll: when using the FIREBIRD variable to locate the client
600     library or finding it by disk location, the PATH environment variable is now also set to
601     include the FIREBIRD directory. This is to ensure that the correct dlls in the
602     firebird client library dependencies are loaded.
603 tony 63
604 tony 68 10. Testsuite: Ensure consistent UTF-8 output on Windows console.
605    
606     11. Testsuite: Update Windows script to include FPC 3.0.4 in search path.
607    
608     12. FB30Statement: Protect call to "Move" and avoid calling with a nil pointer
609    
610     13. FB30Statement: A check has been added to ensure that all SQL Parameters
611     have been given a value (including NULL). Previously, failing to set the
612     value of an SQL Parameter could give rise to unpredictable results or
613     an SQLDA error.
614    
615     14. FB30Statement/FB25Statement: Set SQLParam "modified" when string value set.
616    
617 tony 70 15. FBAttachment: Avoid string reference count error when processing an Ansistring
618     parameter in an array of const passed to IAttachment.OpenCursor, etc.
619 tony 68
620 tony 70 16. FBAttachment: Allow for WideString and UnicodeString parameters in an array
621     of const passed to IAttachment.OpenCursor, etc.
622    
623    
624 tony 56 FBINTF Change Log version (1.0-2) Sat, 04 Mar 2017 14:43:56 +0000
625 tony 47
626 tony 56 1. Change syntax to Mode Delphi
627    
628     2. Change all uses of string type to explicit AnsiString in order to ensure
629     compatibility between Delphi and FPC.
630    
631     3. Various syntax changes to ensure Delphi and FPC compilation including GUIDs
632     defined for each interface.
633    
634     4. Generics syntax variations for Delphi added
635    
636     5. PChar replaced with PByte expect where an actual string is being referenced,
637     where PAnsiChar is used instead.
638    
639     6. Review of type definitions in IBExternals to ensure Delphi compatibility
640    
641     7. Testsuite updated for Delphi
642    
643     FBINTF Change Log version (1.0-1) Fri, 24 Feb 2017 12:17:57 +0000
644    
645 tony 47 1. Limit maximum Blob segment read/write to MaxuShort. Avoids data loss with
646     large blobs and the FB3 API.
647    
648     2. Update Event Handling algorithm to avoid looping due to recreation of the
649     event block.
650    
651     3. Avoid invalid XSQLDA error when the only parameter is updated to null
652    
653     4. Array Handling: fix problem with text arrays with character set none. When the
654     DB connection has a default character set (e.g. UTF8), an error is raised by
655     Firebird if the space allocated is not enough to allow for transliteration, even
656     though it is not required for character set none.
657    
658     5. IBUtils: List of reserved words brought up-to-date
659    
660     6. Add ISQL style performance statistics collection to IStatement
661    
662     7. Add IFirebirdAPI.CreateDatabase variant to allow execution of user provided
663     CREATE DATABASE statement.
664    
665     8. Update SQL Statement parsing to allow for Array Dimensions. That is so that the ':' in
666     an array dimension is not mistaken for a named parameter prefix.
667    
668     9. Trim function no longer applied to result of GetAsString for SQL_TEXT
669     when Character set is octets. Avoids loss of non printable characters at start of string.
670    
671     10. Add function GetPerfStatistics to IStatement. This returns ISQL like performance
672     statistics for the last action. Requires use of procedure IStatement.EnableStatistics
673     to enable stats gathering.
674    
675     11. API Version information added as constants to IB.pas
676    
677     12. BlobMetaData character set id should now be the same as that given by IColumnMetaData.GetCharSetID
678    
679     13. Firebird Character set "NONE" now interpreted as codepage CP_ACP.
680    
681 tony 45 FBINTF Change Log version (1.0-0) Tue, 06 Dec 2016 10:33:47 +0000
682    
683     1. Initial Release
684    

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