1 |
unit test2;
|
2 |
{$IFDEF MSWINDOWS}
|
3 |
{$DEFINE WINDOWS}
|
4 |
{$ENDIF}
|
5 |
|
6 |
{$IFDEF FPC}
|
7 |
{$mode delphi}
|
8 |
{$codepage utf8}
|
9 |
{$ENDIF}
|
10 |
|
11 |
{Test 2: Open the employee database and run a query}
|
12 |
|
13 |
{ This test opens the employee example databases with the supplied user name/password
|
14 |
and runs a simple query with no parameters. Note that the password parameter
|
15 |
is first supplied empty and then updated.
|
16 |
|
17 |
Both the output metadata and the query plan are printed out, followed by the results of the query.
|
18 |
|
19 |
A specific employee record is then queried, first using a positional parameter
|
20 |
and then a parameter by name. In each case, the SQL Parameter metadata is also
|
21 |
printed followed by the query results.
|
22 |
|
23 |
Finally, the database is explicitly disconnected.
|
24 |
}
|
25 |
|
26 |
interface
|
27 |
|
28 |
uses
|
29 |
Classes, SysUtils, TestManager, IB;
|
30 |
|
31 |
type
|
32 |
|
33 |
{ TTest2 }
|
34 |
|
35 |
TTest2 = class(TTestBase)
|
36 |
private
|
37 |
procedure DoQuery(Attachment: IAttachment);
|
38 |
public
|
39 |
function TestTitle: AnsiString; override;
|
40 |
procedure RunTest(CharSet: AnsiString; SQLDialect: integer); override;
|
41 |
end;
|
42 |
|
43 |
|
44 |
implementation
|
45 |
|
46 |
{ TTest2 }
|
47 |
|
48 |
procedure TTest2.DoQuery(Attachment: IAttachment);
|
49 |
var Transaction: ITransaction;
|
50 |
Statement: IStatement;
|
51 |
ResultSet: IResultSet;
|
52 |
begin
|
53 |
Transaction := Attachment.StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit);
|
54 |
Statement := Attachment.Prepare(Transaction,'Select First 3 * from EMPLOYEE',3);
|
55 |
PrintMetaData(Statement.GetMetaData);
|
56 |
writeln(OutFile,'Plan = ' ,Statement.GetPlan);
|
57 |
writeln(OutFile,Statement.GetSQLText);
|
58 |
writeln(OutFile);
|
59 |
ReportResults(Statement);
|
60 |
Statement := Attachment.Prepare(Transaction,'Select * from EMPLOYEE Where EMP_NO = ?',3);
|
61 |
writeln(OutFile,Statement.GetSQLText);
|
62 |
ParamInfo(Statement.SQLParams);
|
63 |
Statement.GetSQLParams[0].AsInteger := 8;
|
64 |
ReportResults(Statement);
|
65 |
writeln(OutFile,'With param names');
|
66 |
Statement := Attachment.PrepareWithNamedParameters(Transaction,'Select * from EMPLOYEE Where EMP_NO = :EMP_NO',3);
|
67 |
Statement.SetRetainInterfaces(true);
|
68 |
try
|
69 |
writeln(OutFile,Statement.GetSQLText);
|
70 |
ParamInfo(Statement.SQLParams);
|
71 |
Statement.GetSQLParams.ByName('EMP_NO').AsInteger := 8;
|
72 |
ReportResults(Statement);
|
73 |
finally
|
74 |
Statement.SetRetainInterfaces(false);
|
75 |
end;
|
76 |
end;
|
77 |
|
78 |
function TTest2.TestTitle: AnsiString;
|
79 |
begin
|
80 |
Result := 'Test 2: Open the employee database and run a query';
|
81 |
end;
|
82 |
|
83 |
procedure TTest2.RunTest(CharSet: AnsiString; SQLDialect: integer);
|
84 |
var Attachment: IAttachment;
|
85 |
DPB: IDPB;
|
86 |
begin
|
87 |
DPB := FirebirdAPI.AllocateDPB;
|
88 |
DPB.Add(isc_dpb_user_name).setAsString(Owner.GetUserName);
|
89 |
DPB.Add(isc_dpb_password).setAsString(' ');
|
90 |
DPB.Add(isc_dpb_lc_ctype).setAsString(CharSet);
|
91 |
DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(SQLDialect);
|
92 |
DPB.Find(isc_dpb_password).setAsString(Owner.GetPassword);
|
93 |
try
|
94 |
Attachment := FirebirdAPI.OpenDatabase(Owner.GetEmployeeDatabaseName,DPB);
|
95 |
except on e: Exception do
|
96 |
writeln(OutFile,'Open Database fails ',E.Message);
|
97 |
end;
|
98 |
writeln(OutFile,'Opening ',Owner.GetEmployeeDatabaseName);
|
99 |
Attachment := FirebirdAPI.OpenDatabase(Owner.GetEmployeeDatabaseName,DPB);
|
100 |
writeln(OutFile,'Database Open');
|
101 |
DoQuery(Attachment);
|
102 |
Attachment.Disconnect;
|
103 |
end;
|
104 |
|
105 |
initialization
|
106 |
RegisterTest(TTest2);
|
107 |
|
108 |
end.
|
109 |
|