1 |
tony |
47 |
(*
|
2 |
|
|
* IBX For Lazarus (Firebird Express)
|
3 |
|
|
*
|
4 |
|
|
* The contents of this file are subject to the Initial Developer's
|
5 |
|
|
* Public License Version 1.0 (the "License"); you may not use this
|
6 |
|
|
* file except in compliance with the License. You may obtain a copy
|
7 |
|
|
* of the License here:
|
8 |
|
|
*
|
9 |
|
|
* http://www.firebirdsql.org/index.php?op=doc&id=idpl
|
10 |
|
|
*
|
11 |
|
|
* Software distributed under the License is distributed on an "AS
|
12 |
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
13 |
|
|
* implied. See the License for the specific language governing rights
|
14 |
|
|
* and limitations under the License.
|
15 |
|
|
*
|
16 |
|
|
* The Initial Developer of the Original Code is Tony Whyman.
|
17 |
|
|
*
|
18 |
|
|
* The Original Code is (C) 2017 Tony Whyman, MWA Software
|
19 |
|
|
* (http://www.mwasoftware.co.uk).
|
20 |
|
|
*
|
21 |
|
|
* All Rights Reserved.
|
22 |
|
|
*
|
23 |
|
|
* Contributor(s): ______________________________________.
|
24 |
|
|
*
|
25 |
|
|
*)
|
26 |
|
|
unit IBDataOutput;
|
27 |
|
|
|
28 |
|
|
{$mode objfpc}{$H+}
|
29 |
|
|
{$codepage UTF8}
|
30 |
|
|
|
31 |
|
|
(*
|
32 |
|
|
These are helper components, primarily for use with TIBXScript, but which are
|
33 |
|
|
also used by TIBExtact (for formatting data as SQL Insert statements). Their
|
34 |
|
|
purpose is to execute SQL SELECT statements and to format the results of the
|
35 |
|
|
query. Data Output Formatters are currently available for:
|
36 |
|
|
|
37 |
|
|
Block Format Output (TIBBlockFormatOut)
|
38 |
|
|
CSV Format (TIBCSVDataOut)
|
39 |
|
|
SQL Insert Statements (TIBInsertStmtsOut).
|
40 |
|
|
*)
|
41 |
|
|
interface
|
42 |
|
|
|
43 |
|
|
uses
|
44 |
|
|
Classes, SysUtils, IBSQL, IBDatabase, IB;
|
45 |
|
|
|
46 |
|
|
const
|
47 |
|
|
MaxBlobText = 80;
|
48 |
|
|
|
49 |
|
|
sTimeStampFormat = 'yyyy.mm.dd hh:nn:ss.zzz';
|
50 |
|
|
sDateFormat = 'yyyy.mm.dd';
|
51 |
|
|
sTimeFormat = 'hh:nn:ss.zzz';
|
52 |
|
|
|
53 |
|
|
type
|
54 |
|
|
TPlanOptions = (poNoPlan,poIncludePlan, poPlanOnly);
|
55 |
|
|
|
56 |
|
|
TAdd2Log = procedure(const Msg: string; IsError: boolean=true) of object;
|
57 |
|
|
|
58 |
|
|
{ TIBCustomDataOutput }
|
59 |
|
|
|
60 |
|
|
TIBCustomDataOutput = class(TComponent)
|
61 |
|
|
private
|
62 |
|
|
FIBSQL: TIBSQL;
|
63 |
|
|
FIncludeHeader: Boolean;
|
64 |
|
|
FPlanOptions: TPlanOptions;
|
65 |
|
|
FRowCount: integer;
|
66 |
|
|
FShowPerformanceStats: boolean;
|
67 |
|
|
function GetDatabase: TIBDatabase;
|
68 |
|
|
function GetTransaction: TIBTransaction;
|
69 |
|
|
procedure SetDatabase(AValue: TIBDatabase);
|
70 |
|
|
procedure SetTransaction(AValue: TIBTransaction);
|
71 |
|
|
protected
|
72 |
|
|
procedure HeaderOut(Add2Log: TAdd2Log); virtual;
|
73 |
|
|
procedure FormattedDataOut(Add2Log: TAdd2Log); virtual; abstract;
|
74 |
|
|
procedure TrailerOut(Add2Log: TAdd2Log); virtual;
|
75 |
|
|
property IncludeHeader: Boolean read FIncludeHeader write FIncludeHeader default true;
|
76 |
|
|
public
|
77 |
|
|
constructor Create(aOwner: TComponent); override;
|
78 |
|
|
procedure Assign(Source: TPersistent); override;
|
79 |
|
|
procedure DataOut(SelectQuery: string; Add2Log: TAdd2Log);
|
80 |
|
|
procedure SetCommand(command, aValue, stmt: string; var Done: boolean); virtual;
|
81 |
|
|
class procedure ShowPerfStats(Statement: IStatement; Add2Log: TAdd2Log);
|
82 |
|
|
published
|
83 |
|
|
property Database: TIBDatabase read GetDatabase write SetDatabase;
|
84 |
|
|
property Transaction: TIBTransaction read GetTransaction write SetTransaction;
|
85 |
|
|
property PlanOptions: TPlanOptions read FPlanOptions write FPlanOptions;
|
86 |
|
|
property RowCount: integer read FRowCount write FRowCount;
|
87 |
|
|
property ShowPerformanceStats: boolean read FShowPerformanceStats write FShowPerformanceStats;
|
88 |
|
|
end;
|
89 |
|
|
|
90 |
|
|
TDataOutputFormatter = class of TIBCustomDataOutput;
|
91 |
|
|
|
92 |
|
|
{ TIBCSVDataOut }
|
93 |
|
|
|
94 |
|
|
TIBCSVDataOut = class(TIBCustomDataOutput)
|
95 |
|
|
private
|
96 |
|
|
FQuoteChar: char;
|
97 |
|
|
protected
|
98 |
|
|
procedure HeaderOut(Add2Log: TAdd2Log); override;
|
99 |
|
|
procedure FormattedDataOut(Add2Log: TAdd2Log); override;
|
100 |
|
|
public
|
101 |
|
|
constructor Create(aOwner: TComponent); override;
|
102 |
|
|
published
|
103 |
|
|
property IncludeHeader;
|
104 |
|
|
property QuoteChar: char read FQuoteChar write FQuoteChar default '''';
|
105 |
|
|
end;
|
106 |
|
|
|
107 |
|
|
{ TIBInsertStmtsOut }
|
108 |
|
|
|
109 |
|
|
TIBInsertStmtsOut = class(TIBCustomDataOutput)
|
110 |
|
|
private
|
111 |
|
|
FIncludeBlobsAndArrays: boolean;
|
112 |
|
|
FInsertHeader: string;
|
113 |
|
|
protected
|
114 |
|
|
procedure HeaderOut(Add2Log: TAdd2Log); override;
|
115 |
|
|
procedure FormattedDataOut(Add2Log: TAdd2Log); override;
|
116 |
|
|
public
|
117 |
|
|
constructor Create(aOwner: TComponent); override;
|
118 |
|
|
published
|
119 |
|
|
property IncludeBlobsAndArrays: boolean read FIncludeBlobsAndArrays
|
120 |
|
|
write FIncludeBlobsAndArrays default true;
|
121 |
|
|
end;
|
122 |
|
|
|
123 |
|
|
TAlignments = (taLeft, taCentre, taRight);
|
124 |
|
|
|
125 |
|
|
{ TIBBlockFormatOut }
|
126 |
|
|
|
127 |
|
|
TIBBlockFormatOut = class(TIBCustomDataOutput)
|
128 |
|
|
private
|
129 |
|
|
FColWidths: array of integer;
|
130 |
|
|
FRowWidth: integer;
|
131 |
|
|
function DashedLine: string;
|
132 |
|
|
function TextAlign(s: string; ColWidth: integer; alignment: TAlignments
|
133 |
|
|
): string;
|
134 |
|
|
protected
|
135 |
|
|
procedure HeaderOut(Add2Log: TAdd2Log); override;
|
136 |
|
|
procedure FormattedDataOut(Add2Log: TAdd2Log); override;
|
137 |
|
|
procedure TrailerOut(Add2Log: TAdd2Log); override;
|
138 |
|
|
published
|
139 |
|
|
property IncludeHeader;
|
140 |
|
|
end;
|
141 |
|
|
|
142 |
|
|
implementation
|
143 |
|
|
|
144 |
|
|
uses IBUtils, FBMessages, Math, IBXScript;
|
145 |
|
|
|
146 |
|
|
{ TIBBlockFormatOut }
|
147 |
|
|
|
148 |
|
|
function TIBBlockFormatOut.DashedLine: string;
|
149 |
|
|
var i: integer;
|
150 |
|
|
begin
|
151 |
|
|
Setlength(Result,FRowWidth);
|
152 |
|
|
for i := 1 to FRowWidth do
|
153 |
|
|
Result[i] := '-';
|
154 |
|
|
end;
|
155 |
|
|
|
156 |
|
|
function TIBBlockFormatOut.TextAlign(s: string; ColWidth: integer;
|
157 |
|
|
alignment: TAlignments): string;
|
158 |
|
|
begin
|
159 |
|
|
SetLength(Result,ColWidth);
|
160 |
|
|
FillChar(Result[1],ColWidth,' ');
|
161 |
|
|
if Length(s) > ColWidth then
|
162 |
|
|
s := LeftStr(s,ColWidth);
|
163 |
|
|
case alignment of
|
164 |
|
|
taLeft:
|
165 |
|
|
Move(s[1],Result[1],Length(s));
|
166 |
|
|
taCentre:
|
167 |
|
|
Move(s[1],Result[(ColWidth - Length(s)) div 2 + 1],Length(s));
|
168 |
|
|
taRight:
|
169 |
|
|
Move(s[1],Result[ColWidth - Length(s) + 1],Length(s));
|
170 |
|
|
end;
|
171 |
|
|
end;
|
172 |
|
|
|
173 |
|
|
procedure TIBBlockFormatOut.HeaderOut(Add2Log: TAdd2Log);
|
174 |
|
|
var i: integer;
|
175 |
|
|
s: string;
|
176 |
|
|
begin
|
177 |
|
|
with FIBSQL do
|
178 |
|
|
begin
|
179 |
|
|
{Calculate column Widths}
|
180 |
|
|
SetLength(FColWidths,MetaData.Count);
|
181 |
|
|
FRowWidth := 1; {assume leading '|'}
|
182 |
|
|
for i := 0 to MetaData.Count - 1 do
|
183 |
|
|
with MetaData[i] do
|
184 |
|
|
begin
|
185 |
|
|
case SQLType of
|
186 |
|
|
SQL_VARYING, SQL_TEXT:
|
187 |
|
|
FColWidths[i] := GetSize;
|
188 |
|
|
|
189 |
|
|
SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
|
190 |
|
|
FColWidths[i] := 18; {see http://www.freepascal.org/docs-html/rtl/sysutils/formatfloat.html}
|
191 |
|
|
|
192 |
|
|
SQL_LONG:
|
193 |
|
|
if Scale = 0 then
|
194 |
|
|
FColWidths[i] := 12 {allow for minus sign}
|
195 |
|
|
else
|
196 |
|
|
FColWidths[i] := 13; {leave room for the decimal point}
|
197 |
|
|
|
198 |
|
|
SQL_SHORT:
|
199 |
|
|
if Scale = 0 then
|
200 |
|
|
FColWidths[i] := 6 {allow for minus sign}
|
201 |
|
|
else
|
202 |
|
|
FColWidths[i] := 7; {leave room for the decimal point}
|
203 |
|
|
|
204 |
|
|
SQL_INT64:
|
205 |
|
|
if Scale = 0 then
|
206 |
|
|
FColWidths[i] := 20 {allow for minus sign}
|
207 |
|
|
else
|
208 |
|
|
FColWidths[i] := 21; {leave room for the decimal point}
|
209 |
|
|
|
210 |
|
|
SQL_TIMESTAMP:
|
211 |
|
|
FColWidths[i] := 23;
|
212 |
|
|
|
213 |
|
|
SQL_TYPE_DATE:
|
214 |
|
|
FColWidths[i] := 10;
|
215 |
|
|
|
216 |
|
|
SQL_TYPE_TIME:
|
217 |
|
|
FColWidths[i] := 12;
|
218 |
|
|
|
219 |
|
|
SQL_BLOB:
|
220 |
|
|
if SQLSubType = 1 then
|
221 |
|
|
FColWidths[i] := MaxBlobText
|
222 |
|
|
else
|
223 |
|
|
FColWidths[i] := length(SBlob);
|
224 |
|
|
|
225 |
|
|
SQL_ARRAY:
|
226 |
|
|
FColWidths[i] := length(SArray);
|
227 |
|
|
|
228 |
|
|
SQL_BOOLEAN:
|
229 |
|
|
FColWidths[i] := Max(Length(STrue),Length(SFalse));
|
230 |
|
|
end;
|
231 |
|
|
if FColWidths[i] < Length(Name) then
|
232 |
|
|
FColWidths[i] := Length(Name);
|
233 |
|
|
FRowWidth += FColWidths[i] + 1;
|
234 |
|
|
end;
|
235 |
|
|
|
236 |
|
|
{Now output the header}
|
237 |
|
|
|
238 |
|
|
Add2Log(DashedLine);
|
239 |
|
|
s := '|';
|
240 |
|
|
for i := 0 to MetaData.Count - 1 do
|
241 |
|
|
s += TextAlign(MetaData[i].Name,FColWidths[i],taCentre) + '|';
|
242 |
|
|
Add2Log(s);
|
243 |
|
|
Add2Log(DashedLine);
|
244 |
|
|
end;
|
245 |
|
|
end;
|
246 |
|
|
|
247 |
|
|
procedure TIBBlockFormatOut.FormattedDataOut(Add2Log: TAdd2Log);
|
248 |
|
|
|
249 |
|
|
function TruncateTextBlob(textStr: string): string;
|
250 |
|
|
begin
|
251 |
|
|
if Length(textStr) > MaxBlobText then
|
252 |
|
|
Result := LeftStr(textStr,MaxBlobText-3) + '...'
|
253 |
|
|
else
|
254 |
|
|
Result := textStr;
|
255 |
|
|
end;
|
256 |
|
|
|
257 |
|
|
var i: integer;
|
258 |
|
|
s: string;
|
259 |
|
|
begin
|
260 |
|
|
s := '|';
|
261 |
|
|
for i := 0 to FIBSQL.Current.Count - 1 do
|
262 |
|
|
with FIBSQL.Current[i] do
|
263 |
|
|
begin
|
264 |
|
|
if IsNull then
|
265 |
|
|
s += TextAlign('NULL',FColWidths[i],taCentre)
|
266 |
|
|
else
|
267 |
|
|
case SQLType of
|
268 |
|
|
SQL_VARYING, SQL_TEXT:
|
269 |
|
|
s += TextAlign(AsString,FColWidths[i],taLeft);
|
270 |
|
|
|
271 |
|
|
SQL_TIMESTAMP:
|
272 |
|
|
s += TextAlign(FormatDateTime(sTimeStampFormat,AsDateTime),FColWidths[i],taLeft);
|
273 |
|
|
|
274 |
|
|
SQL_TYPE_DATE:
|
275 |
|
|
s += TextAlign(FormatDateTime(sDateFormat,AsDateTime),FColWidths[i],taLeft);
|
276 |
|
|
|
277 |
|
|
SQL_TYPE_TIME:
|
278 |
|
|
s += TextAlign(FormatDateTime(sTimeFormat,AsDateTime),FColWidths[i],taLeft);
|
279 |
|
|
|
280 |
|
|
SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT,
|
281 |
|
|
SQL_LONG, SQL_SHORT, SQL_INT64:
|
282 |
|
|
s += TextAlign(AsString,FColWidths[i],taRight);
|
283 |
|
|
|
284 |
|
|
SQL_BOOLEAN, SQL_ARRAY:
|
285 |
|
|
s += TextAlign(AsString,FColWidths[i],taCentre);
|
286 |
|
|
|
287 |
|
|
SQL_BLOB:
|
288 |
|
|
if SQLSubType = 1 then
|
289 |
|
|
s += TextAlign(TruncateTextBlob(AsString),FColWidths[i],taLeft)
|
290 |
|
|
else
|
291 |
|
|
s += TextAlign(sBlob,FColWidths[i],taCentre);
|
292 |
|
|
end;
|
293 |
|
|
s += '|';
|
294 |
|
|
end;
|
295 |
|
|
Add2Log(s);
|
296 |
|
|
Add2Log(DashedLine);
|
297 |
|
|
end;
|
298 |
|
|
|
299 |
|
|
procedure TIBBlockFormatOut.TrailerOut(Add2Log: TAdd2Log);
|
300 |
|
|
begin
|
301 |
|
|
Add2Log(DashedLine);
|
302 |
|
|
end;
|
303 |
|
|
|
304 |
|
|
{ TIBInsertStmtsOut }
|
305 |
|
|
|
306 |
|
|
procedure TIBInsertStmtsOut.HeaderOut(Add2Log: TAdd2Log);
|
307 |
|
|
var TableName: string;
|
308 |
|
|
i,j: integer;
|
309 |
|
|
begin
|
310 |
|
|
TableName := trim(FIBSQL.GetUniqueRelationName);
|
311 |
|
|
if TableName = '' then
|
312 |
|
|
IBError(ibxeUniqueRelationReqd,[nil]);
|
313 |
|
|
|
314 |
|
|
Add2Log('');
|
315 |
|
|
Add2Log('/* Inserting data into Table: ' + TableName + ' */');
|
316 |
|
|
Add2Log('');
|
317 |
|
|
|
318 |
|
|
FInsertHeader := 'INSERT INTO ' + QuoteIdentifier(Database.SQLDialect, TableName) + ' (';
|
319 |
|
|
with FIBSQL do
|
320 |
|
|
begin
|
321 |
|
|
j := 0;
|
322 |
|
|
for i := 0 to MetaData.Count - 1 do
|
323 |
|
|
if IncludeBlobsAndArrays or
|
324 |
|
|
((MetaData[i].SQLTYPE <> SQL_BLOB) and (MetaData[i].SQLType <> SQL_ARRAY)) then
|
325 |
|
|
begin
|
326 |
|
|
if j <> 0 then FInsertHeader += ',';
|
327 |
|
|
FInsertHeader += QuoteIdentifierIfNeeded(Database.SQLDialect,Trim(MetaData[i].getAliasName));
|
328 |
|
|
Inc(j);
|
329 |
|
|
end;
|
330 |
|
|
end;
|
331 |
|
|
FInsertHeader += ') VALUES(';
|
332 |
|
|
end;
|
333 |
|
|
|
334 |
|
|
procedure TIBInsertStmtsOut.FormattedDataOut(Add2Log: TAdd2Log);
|
335 |
|
|
const
|
336 |
|
|
QuoteChar = '''';
|
337 |
|
|
|
338 |
|
|
var s: string;
|
339 |
|
|
i, j: integer;
|
340 |
|
|
ar: IArray;
|
341 |
|
|
begin
|
342 |
|
|
s := FInsertHeader;
|
343 |
|
|
with FIBSQL do
|
344 |
|
|
begin
|
345 |
|
|
j := 0;
|
346 |
|
|
for i := 0 to Current.Count - 1 do
|
347 |
|
|
if IncludeBlobsAndArrays or
|
348 |
|
|
((Current[i].SQLTYPE <> SQL_BLOB) and (Current[i].SQLType <> SQL_ARRAY)) then
|
349 |
|
|
begin
|
350 |
|
|
if j <> 0 then s += ',';
|
351 |
|
|
if Current[i].IsNull then
|
352 |
|
|
s += 'NULL'
|
353 |
|
|
else
|
354 |
|
|
case Current[i].SQLType of
|
355 |
|
|
SQL_BLOB:
|
356 |
|
|
if Current[i].SQLSubType = 1 then
|
357 |
|
|
begin
|
358 |
|
|
if Current[i].getCharSetID = 1 {octets} then
|
359 |
|
|
s += Format('x''%s''',[StringToHex(Current[i].AsString)])
|
360 |
|
|
else
|
361 |
|
|
s += QuoteChar + SQLSafeString(Current[i].AsString) + QuoteChar
|
362 |
|
|
end
|
363 |
|
|
else
|
364 |
|
|
s += TIBXMLProcessor.FormatBlob(Current[i]);
|
365 |
|
|
|
366 |
|
|
SQL_ARRAY:
|
367 |
|
|
begin
|
368 |
|
|
ar := Current[i].AsArray;
|
369 |
|
|
if ar = nil then
|
370 |
|
|
s += 'NULL'
|
371 |
|
|
else
|
372 |
|
|
s += TIBXMLProcessor.FormatArray(ar);
|
373 |
|
|
end;
|
374 |
|
|
|
375 |
|
|
SQL_TEXT, SQL_VARYING:
|
376 |
|
|
if Current[i].getCharSetID = 1 {octets} then
|
377 |
|
|
s += Format('x''%s''',[StringToHex(Current[i].AsString)])
|
378 |
|
|
else
|
379 |
|
|
s += QuoteChar + SQLSafeString(Current[i].AsString) + QuoteChar;
|
380 |
|
|
|
381 |
|
|
SQL_TIMESTAMP:
|
382 |
|
|
s += QuoteChar + FormatDateTime(sTimeStampFormat,Current[i].AsDateTime) + QuoteChar;
|
383 |
|
|
|
384 |
|
|
SQL_TYPE_DATE:
|
385 |
|
|
s += QuoteChar + FormatDateTime(sDateFormat,Current[i].AsDateTime) + QuoteChar;
|
386 |
|
|
|
387 |
|
|
SQL_TYPE_TIME:
|
388 |
|
|
s += QuoteChar + FormatDateTime(sTimeFormat,Current[i].AsDateTime) + QuoteChar;
|
389 |
|
|
|
390 |
|
|
else
|
391 |
|
|
s += Current[i].AsString;
|
392 |
|
|
end;
|
393 |
|
|
Inc(j);
|
394 |
|
|
end;
|
395 |
|
|
end;
|
396 |
|
|
s += ');';
|
397 |
|
|
Add2Log(s);
|
398 |
|
|
end;
|
399 |
|
|
|
400 |
|
|
constructor TIBInsertStmtsOut.Create(aOwner: TComponent);
|
401 |
|
|
begin
|
402 |
|
|
inherited Create(aOwner);
|
403 |
|
|
FIncludeBlobsAndArrays := true;
|
404 |
|
|
end;
|
405 |
|
|
|
406 |
|
|
{ TIBCSVDataOut }
|
407 |
|
|
|
408 |
|
|
procedure TIBCSVDataOut.HeaderOut(Add2Log: TAdd2Log);
|
409 |
|
|
var i: integer;
|
410 |
|
|
s: string;
|
411 |
|
|
begin
|
412 |
|
|
s := '';
|
413 |
|
|
for i := 0 to FIBSQL.MetaData.Count - 1 do
|
414 |
|
|
begin
|
415 |
|
|
if i <> 0 then s += ',';
|
416 |
|
|
s += FIBSQL.MetaData[i].getAliasName;
|
417 |
|
|
end;
|
418 |
|
|
Add2Log(s);
|
419 |
|
|
end;
|
420 |
|
|
|
421 |
|
|
procedure TIBCSVDataOut.FormattedDataOut(Add2Log: TAdd2Log);
|
422 |
|
|
var i: integer;
|
423 |
|
|
s: string;
|
424 |
|
|
begin
|
425 |
|
|
s := '';
|
426 |
|
|
with FIBSQL do
|
427 |
|
|
begin
|
428 |
|
|
for i := 0 to Current.Count - 1 do
|
429 |
|
|
with Current[i] do
|
430 |
|
|
begin
|
431 |
|
|
if i <> 0 then s += ',';
|
432 |
|
|
case SQLType of
|
433 |
|
|
SQL_BLOB:
|
434 |
|
|
if SQLSubType <> 1 then
|
435 |
|
|
s += sBlob
|
436 |
|
|
else
|
437 |
|
|
s += QuoteChar + Current[i].AsString + QuoteChar;
|
438 |
|
|
|
439 |
|
|
SQL_VARYING,SQL_TEXT,
|
440 |
|
|
SQL_TIMESTAMP,SQL_TYPE_DATE,SQL_TYPE_TIME:
|
441 |
|
|
s += QuoteChar + Current[i].AsString + QuoteChar;
|
442 |
|
|
|
443 |
|
|
else
|
444 |
|
|
s += Current[i].AsString;
|
445 |
|
|
end;
|
446 |
|
|
end;
|
447 |
|
|
end;
|
448 |
|
|
Add2Log(s);
|
449 |
|
|
end;
|
450 |
|
|
|
451 |
|
|
constructor TIBCSVDataOut.Create(aOwner: TComponent);
|
452 |
|
|
begin
|
453 |
|
|
inherited Create(aOwner);
|
454 |
|
|
FQuoteChar := '''';
|
455 |
|
|
end;
|
456 |
|
|
|
457 |
|
|
{ TIBCustomDataOutput }
|
458 |
|
|
|
459 |
|
|
function TIBCustomDataOutput.GetDatabase: TIBDatabase;
|
460 |
|
|
begin
|
461 |
|
|
Result := FIBSQL.Database;
|
462 |
|
|
end;
|
463 |
|
|
|
464 |
|
|
function TIBCustomDataOutput.GetTransaction: TIBTransaction;
|
465 |
|
|
begin
|
466 |
|
|
Result := FIBSQL.Transaction;
|
467 |
|
|
end;
|
468 |
|
|
|
469 |
|
|
procedure TIBCustomDataOutput.SetDatabase(AValue: TIBDatabase);
|
470 |
|
|
begin
|
471 |
|
|
FIBSQL.Database := AValue;
|
472 |
|
|
end;
|
473 |
|
|
|
474 |
|
|
procedure TIBCustomDataOutput.SetTransaction(AValue: TIBTransaction);
|
475 |
|
|
begin
|
476 |
|
|
FIBSQL.Transaction := AValue;
|
477 |
|
|
end;
|
478 |
|
|
|
479 |
|
|
procedure TIBCustomDataOutput.HeaderOut(Add2Log: TAdd2Log);
|
480 |
|
|
begin
|
481 |
|
|
//stub
|
482 |
|
|
end;
|
483 |
|
|
|
484 |
|
|
procedure TIBCustomDataOutput.TrailerOut(Add2Log: TAdd2Log);
|
485 |
|
|
begin
|
486 |
|
|
//stub
|
487 |
|
|
end;
|
488 |
|
|
|
489 |
|
|
constructor TIBCustomDataOutput.Create(aOwner: TComponent);
|
490 |
|
|
begin
|
491 |
|
|
inherited Create(aOwner);
|
492 |
|
|
FIBSQL := TIBSQL.Create(self);
|
493 |
|
|
FIncludeHeader := true;
|
494 |
|
|
end;
|
495 |
|
|
|
496 |
|
|
procedure TIBCustomDataOutput.Assign(Source: TPersistent);
|
497 |
|
|
begin
|
498 |
|
|
if Source is TIBCustomDataOutput then
|
499 |
|
|
begin
|
500 |
|
|
IncludeHeader := TIBCustomDataOutput(Source).IncludeHeader;
|
501 |
|
|
RowCount := TIBCustomDataOutput(Source).RowCount;
|
502 |
|
|
ShowPerformanceStats := TIBCustomDataOutput(Source).ShowPerformanceStats;
|
503 |
|
|
PlanOptions := TIBCustomDataOutput(Source).PlanOptions;
|
504 |
|
|
end;
|
505 |
|
|
end;
|
506 |
|
|
|
507 |
|
|
procedure TIBCustomDataOutput.DataOut(SelectQuery: string; Add2Log: TAdd2Log);
|
508 |
|
|
var Count: integer;
|
509 |
|
|
begin
|
510 |
|
|
FIBSQL.SQL.Text := SelectQuery;
|
511 |
|
|
FIBSQL.Prepare;
|
512 |
|
|
FIBSQL.Statement.EnableStatistics(ShowPerformanceStats);
|
513 |
|
|
if PlanOptions <> poNoPlan then
|
514 |
|
|
Add2Log(FIBSQL.Plan);
|
515 |
|
|
if PlanOptions = poPlanOnly then
|
516 |
|
|
Exit;
|
517 |
|
|
|
518 |
|
|
if IncludeHeader then
|
519 |
|
|
HeaderOut(Add2Log);
|
520 |
|
|
Count := 0;
|
521 |
|
|
FIBSQL.ExecQuery;
|
522 |
|
|
try
|
523 |
|
|
while (not FIBSQL.EOF) and ((FRowCount = 0) or (Count < FRowCount)) do
|
524 |
|
|
begin
|
525 |
|
|
FormattedDataOut(Add2Log);
|
526 |
|
|
FIBSQL.Next;
|
527 |
|
|
Inc(Count);
|
528 |
|
|
end;
|
529 |
|
|
ShowPerfStats(FIBSQL.Statement,Add2Log);
|
530 |
|
|
finally
|
531 |
|
|
FIBSQL.Close;
|
532 |
|
|
end;
|
533 |
|
|
end;
|
534 |
|
|
|
535 |
|
|
procedure TIBCustomDataOutput.SetCommand(command, aValue, stmt: string;
|
536 |
|
|
var Done: boolean);
|
537 |
|
|
|
538 |
|
|
function Toggle(aValue: string): boolean;
|
539 |
|
|
begin
|
540 |
|
|
aValue := AnsiUpperCase(aValue);
|
541 |
|
|
if aValue = 'ON' then
|
542 |
|
|
Result := true
|
543 |
|
|
else
|
544 |
|
|
if aValue = 'OFF' then
|
545 |
|
|
Result := false
|
546 |
|
|
else
|
547 |
|
|
raise Exception.CreateFmt(sInvalidSetStatement, [command,stmt]);
|
548 |
|
|
end;
|
549 |
|
|
|
550 |
|
|
begin
|
551 |
|
|
done := true;
|
552 |
|
|
if command = 'HEADING' then
|
553 |
|
|
FIncludeHeader := ((aValue = '') and not FIncludeHeader) or
|
554 |
|
|
((aValue <> '') and Toggle(aValue))
|
555 |
|
|
else
|
556 |
|
|
if command = 'ROWCOUNT' then
|
557 |
|
|
FRowCount := StrToInt(aValue)
|
558 |
|
|
else
|
559 |
|
|
if command = 'PLAN' then
|
560 |
|
|
begin
|
561 |
|
|
if aValue = '' then
|
562 |
|
|
begin
|
563 |
|
|
if FPlanOptions <> poIncludePlan then
|
564 |
|
|
FPlanOptions := poIncludePlan
|
565 |
|
|
else
|
566 |
|
|
FPlanOptions := poNoPlan;
|
567 |
|
|
end
|
568 |
|
|
else
|
569 |
|
|
if Toggle(aValue) then
|
570 |
|
|
FPlanOptions := poIncludePlan
|
571 |
|
|
else
|
572 |
|
|
FPlanOptions := poNoPlan;
|
573 |
|
|
end
|
574 |
|
|
else
|
575 |
|
|
if command = 'PLANONLY' then
|
576 |
|
|
begin
|
577 |
|
|
if aValue = '' then
|
578 |
|
|
begin
|
579 |
|
|
if FPlanOptions <> poPlanOnly then
|
580 |
|
|
FPlanOptions := poPlanOnly
|
581 |
|
|
else
|
582 |
|
|
FPlanOptions := poNoPlan;
|
583 |
|
|
end
|
584 |
|
|
else
|
585 |
|
|
if Toggle(aValue) then
|
586 |
|
|
FPlanOptions := poPlanOnly
|
587 |
|
|
else
|
588 |
|
|
if FPlanOptions <> poIncludePlan then
|
589 |
|
|
FPlanOptions := poNoPlan;
|
590 |
|
|
end
|
591 |
|
|
else
|
592 |
|
|
done := false;
|
593 |
|
|
end;
|
594 |
|
|
|
595 |
|
|
class procedure TIBCustomDataOutput.ShowPerfStats(Statement: IStatement;
|
596 |
|
|
Add2Log: TAdd2Log);
|
597 |
|
|
var stats: TPerfCounters;
|
598 |
|
|
begin
|
599 |
|
|
if Statement.GetPerfStatistics(stats) then
|
600 |
|
|
begin
|
601 |
|
|
Add2Log(Format('Current memory = %d',[stats[psCurrentMemory]]));
|
602 |
|
|
Add2Log(Format('Delta memory = %d',[stats[psDeltaMemory]]));
|
603 |
|
|
Add2Log(Format('Max memory = %d',[stats[psMaxMemory]]));
|
604 |
|
|
Add2Log('Elapsed time= ' + FormatFloat('#0.000',stats[psRealTime]/1000) +' sec');
|
605 |
|
|
Add2Log('Cpu = ' + FormatFloat('#0.000',stats[psUserTime]/1000) + ' sec');
|
606 |
|
|
Add2Log(Format('Buffers = %d',[stats[psBuffers]]));
|
607 |
|
|
Add2Log(Format('Reads = %d',[stats[psReads]]));
|
608 |
|
|
Add2Log(Format('Writes = %d',[stats[psWrites]]));
|
609 |
|
|
Add2Log(Format('Fetches = %d',[stats[psFetches]]));
|
610 |
|
|
end;
|
611 |
|
|
end;
|
612 |
|
|
|
613 |
|
|
end.
|
614 |
|
|
|