1 |
tony |
45 |
unit Test8; |
2 |
|
|
|
3 |
|
|
{$mode objfpc}{$H+} |
4 |
|
|
{$codepage utf8} |
5 |
|
|
|
6 |
|
|
{Test 8: Create and read back an Array with 2 dimensions} |
7 |
|
|
|
8 |
|
|
{ |
9 |
|
|
1. Create an empty database and populate with a single table including a two |
10 |
|
|
dimensional array of varchar(16) column. |
11 |
|
|
|
12 |
|
|
2. Select all and show metadata including array metadata. |
13 |
|
|
|
14 |
|
|
3. Insert a row but leave array null |
15 |
|
|
|
16 |
|
|
4. Show result. |
17 |
|
|
|
18 |
|
|
5. Update row with a populated array and show results. |
19 |
|
|
} |
20 |
|
|
|
21 |
|
|
interface |
22 |
|
|
|
23 |
|
|
uses |
24 |
|
|
Classes, SysUtils, TestManager, IB; |
25 |
|
|
|
26 |
|
|
type |
27 |
|
|
|
28 |
|
|
{ TTest8 } |
29 |
|
|
|
30 |
|
|
TTest8 = class(TTestBase) |
31 |
|
|
private |
32 |
|
|
procedure UpdateDatabase(Attachment: IAttachment); |
33 |
|
|
public |
34 |
|
|
function TestTitle: string; override; |
35 |
|
|
procedure RunTest(CharSet: string; SQLDialect: integer); override; |
36 |
|
|
end; |
37 |
|
|
|
38 |
|
|
implementation |
39 |
|
|
|
40 |
|
|
const |
41 |
|
|
sqlCreateTable = |
42 |
|
|
'Create Table TestData ('+ |
43 |
|
|
'RowID Integer not null,'+ |
44 |
|
|
'Title VarChar(32) Character Set UTF8,'+ |
45 |
|
|
'MyArray VarChar(16) [0:16, -1:7] Character Set ISO8859_2,'+ |
46 |
|
|
'Primary Key(RowID)'+ |
47 |
|
|
')'; |
48 |
|
|
|
49 |
|
|
sqlInsert = 'Insert into TestData(RowID,Title) Values(:RowID,:Title)'; |
50 |
|
|
|
51 |
|
|
sqlUpdate = 'Update TestData Set MyArray = ? Where RowID = 1'; |
52 |
|
|
|
53 |
|
|
{ TTest8 } |
54 |
|
|
|
55 |
|
|
procedure TTest8.UpdateDatabase(Attachment: IAttachment); |
56 |
|
|
var Transaction: ITransaction; |
57 |
|
|
Statement: IStatement; |
58 |
|
|
ResultSet: IResultSet; |
59 |
|
|
i,j,k : integer; |
60 |
|
|
ar: IArray; |
61 |
|
|
begin |
62 |
|
|
Transaction := Attachment.StartTransaction([isc_tpb_write,isc_tpb_nowait,isc_tpb_concurrency],taCommit); |
63 |
|
|
Statement := Attachment.Prepare(Transaction,'Select * from TestData'); |
64 |
|
|
PrintMetaData(Statement.GetMetaData); |
65 |
|
|
Statement := Attachment.PrepareWithNamedParameters(Transaction,sqlInsert); |
66 |
|
|
ParamInfo(Statement.GetSQLParams); |
67 |
|
|
with Statement.GetSQLParams do |
68 |
|
|
begin |
69 |
|
|
ByName('rowid').AsInteger := 1; |
70 |
|
|
ByName('title').AsString := '2D Array'; |
71 |
|
|
end; |
72 |
|
|
Statement.Execute; |
73 |
|
|
Statement := Attachment.Prepare(Transaction,'Select * from TestData'); |
74 |
|
|
ReportResults(Statement); |
75 |
|
|
|
76 |
|
|
Statement := Attachment.Prepare(Transaction,sqlUpdate); |
77 |
|
|
ar := Attachment.CreateArray(Transaction,'TestData','MyArray'); |
78 |
|
|
if ar <> nil then |
79 |
|
|
begin |
80 |
|
|
k := 50; |
81 |
|
|
for i := 0 to 16 do |
82 |
|
|
for j := -1 to 7 do |
83 |
|
|
begin |
84 |
|
|
ar.SetAsString([i,j],'A' + IntToStr(k)); |
85 |
|
|
Inc(k); |
86 |
|
|
end; |
87 |
|
|
Statement.SQLParams[0].AsArray := ar; |
88 |
|
|
Statement.Execute; |
89 |
|
|
end; |
90 |
|
|
Statement := Attachment.Prepare(Transaction,'Select * from TestData'); |
91 |
|
|
ReportResults(Statement); |
92 |
|
|
end; |
93 |
|
|
|
94 |
|
|
function TTest8.TestTitle: string; |
95 |
|
|
begin |
96 |
|
|
Result := 'Test 8: Create and read back an Array with 2 dimensions'; |
97 |
|
|
end; |
98 |
|
|
|
99 |
|
|
procedure TTest8.RunTest(CharSet: string; SQLDialect: integer); |
100 |
|
|
var DPB: IDPB; |
101 |
|
|
Attachment: IAttachment; |
102 |
|
|
begin |
103 |
|
|
DPB := FirebirdAPI.AllocateDPB; |
104 |
|
|
DPB.Add(isc_dpb_user_name).setAsString(Owner.GetUserName); |
105 |
|
|
DPB.Add(isc_dpb_password).setAsString(Owner.GetPassword); |
106 |
|
|
DPB.Add(isc_dpb_lc_ctype).setAsString(CharSet); |
107 |
|
|
DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(SQLDialect); |
108 |
|
|
Attachment := FirebirdAPI.CreateDatabase(Owner.GetNewDatabaseName,DPB); |
109 |
|
|
Attachment.ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_consistency],sqlCreateTable); |
110 |
|
|
UpdateDatabase(Attachment); |
111 |
|
|
|
112 |
|
|
Attachment.DropDatabase; |
113 |
|
|
end; |
114 |
|
|
|
115 |
|
|
initialization |
116 |
|
|
RegisterTest(TTest8); |
117 |
|
|
|
118 |
|
|
end. |
119 |
|
|
|