1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
#include <stdio.h>
#include <stdlib.h>
#include "common.h"
#define ARRAY_SIZE 10000
#define ARRAY_SIZE_SMALL 5
int main(int argc, char **argv)
{
SQLRETURN rc;
HSTMT hstmt = SQL_NULL_HSTMT;
char *sql;
int i;
SQLUINTEGER int_array[ARRAY_SIZE];
SQLCHAR str_array[ARRAY_SIZE][30];
SQLCHAR str_array2[ARRAY_SIZE][6];
SQLLEN int_ind_array[ARRAY_SIZE];
SQLLEN str_ind_array[ARRAY_SIZE];
SQLUSMALLINT status_array[ARRAY_SIZE];
SQLULEN nprocessed;
test_connect();
rc = SQLAllocHandle(SQL_HANDLE_STMT, conn, &hstmt);
if (!SQL_SUCCEEDED(rc))
{
print_diag("failed to allocate stmt handle", SQL_HANDLE_DBC, conn);
exit(1);
}
sql = "CREATE TEMPORARY TABLE tmptable (i int4, t text)";
rc = SQLExecDirect(hstmt, (SQLCHAR *) sql, SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed while creating temp table", hstmt);
rc = SQLFreeStmt(hstmt, SQL_CLOSE);
CHECK_STMT_RESULT(rc, "SQLFreeStmt failed", hstmt);
/****
* 1. Test column-wise binding
*/
for (i = 0; i < ARRAY_SIZE; i++)
{
int_array[i] = i;
int_ind_array[i] = 0;
sprintf(str_array[i], "columnwise %d", i);
str_ind_array[i] = SQL_NTS;
}
SQLSetStmtAttr(hstmt, SQL_ATTR_PARAM_BIND_TYPE, SQL_PARAM_BIND_BY_COLUMN, 0);
SQLSetStmtAttr(hstmt, SQL_ATTR_PARAM_STATUS_PTR, status_array, 0);
SQLSetStmtAttr(hstmt, SQL_ATTR_PARAMS_PROCESSED_PTR, &nprocessed, 0);
SQLSetStmtAttr(hstmt, SQL_ATTR_PARAMSET_SIZE, (SQLPOINTER) ARRAY_SIZE, 0);
/* Bind the parameter arrays. */
SQLBindParameter(hstmt, 1, SQL_PARAM_INPUT, SQL_C_ULONG, SQL_INTEGER, 5, 0,
int_array, 0, int_ind_array);
SQLBindParameter(hstmt, 2, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, 29, 0,
str_array, 30, str_ind_array);
/* Execute */
sql = "INSERT INTO tmptable VALUES (?, ?)";
rc = SQLExecDirect(hstmt, (SQLCHAR *) sql, SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed", hstmt);
/* Fetch results */
printf("Parameter Status\n");
for (i = 0; i < nprocessed; i++)
{
switch (status_array[i])
{
case SQL_PARAM_SUCCESS:
case SQL_PARAM_SUCCESS_WITH_INFO:
break;
case SQL_PARAM_ERROR:
printf("%d\tError\n", i);
break;
case SQL_PARAM_UNUSED:
printf("%d\tUnused\n", i);
break;
case SQL_PARAM_DIAG_UNAVAILABLE:
printf("%d\tDiag unavailable\n", i);
break;
}
}
rc = SQLFreeStmt(hstmt, SQL_CLOSE);
CHECK_STMT_RESULT(rc, "SQLFreeStmt failed", hstmt);
/*
* Free and allocate a new handle for the next SELECT statement, as we don't
* want to array bind that one. The parameters set with SQLSetStmtAttr
* survive SQLFreeStmt.
*/
rc = SQLFreeHandle(SQL_HANDLE_STMT, hstmt);
CHECK_STMT_RESULT(rc, "SQLFreeHandle failed", hstmt);
rc = SQLAllocHandle(SQL_HANDLE_STMT, conn, &hstmt);
if (!SQL_SUCCEEDED(rc))
{
print_diag("failed to allocate stmt handle", SQL_HANDLE_DBC, conn);
exit(1);
}
/* Check that all the rows were inserted */
sql = "SELECT COUNT(*) FROM tmptable";
rc = SQLExecDirect(hstmt, (SQLCHAR *) sql, SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed", hstmt);
print_result(hstmt);
rc = SQLFreeStmt(hstmt, SQL_CLOSE);
CHECK_STMT_RESULT(rc, "SQLFreeStmt failed", hstmt);
/* Check the contents of a few rows */
sql = "SELECT * FROM tmptable WHERE i IN (0, 1, 100, 9999, 10000) ORDER BY i";
rc = SQLExecDirect(hstmt, (SQLCHAR *) sql, SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed", hstmt);
print_result(hstmt);
rc = SQLFreeStmt(hstmt, SQL_CLOSE);
CHECK_STMT_RESULT(rc, "SQLFreeStmt failed", hstmt);
/****
* 2. Test column-wise binding. With a column_size=5 VARCHAR param - that
* causes the driver to do a server-side prepare, assuming BoolsAsChar=1.
*/
/* a small array will do for this test */
for (i = 0; i < ARRAY_SIZE_SMALL; i++)
{
sprintf(str_array2[i], "%d", 100+i);
str_ind_array[i] = SQL_NTS;
}
SQLSetStmtAttr(hstmt, SQL_ATTR_PARAM_BIND_TYPE, SQL_PARAM_BIND_BY_COLUMN, 0);
SQLSetStmtAttr(hstmt, SQL_ATTR_PARAM_STATUS_PTR, status_array, 0);
SQLSetStmtAttr(hstmt, SQL_ATTR_PARAMS_PROCESSED_PTR, &nprocessed, 0);
SQLSetStmtAttr(hstmt, SQL_ATTR_PARAMSET_SIZE, (SQLPOINTER) ARRAY_SIZE_SMALL, 0);
/* Bind the parameter array. */
SQLBindParameter(hstmt, 1, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_VARCHAR, 5, 0,
str_array2, 6, str_ind_array);
/* Execute */
sql = "DELETE FROM tmptable WHERE i = ? RETURNING (t)";
rc = SQLExecDirect(hstmt, (SQLCHAR *) sql, SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed", hstmt);
/* Fetch results */
printf("Parameter Status\n");
for (i = 0; i < nprocessed; i++)
{
switch (status_array[i])
{
case SQL_PARAM_SUCCESS:
case SQL_PARAM_SUCCESS_WITH_INFO:
break;
case SQL_PARAM_ERROR:
printf("%d\tError\n", i);
break;
case SQL_PARAM_UNUSED:
printf("%d\tUnused\n", i);
break;
case SQL_PARAM_DIAG_UNAVAILABLE:
printf("%d\tDiag unavailable\n", i);
break;
}
}
printf ("Fetching result sets for array bound (%u results expected)\n",
(unsigned int) nprocessed);
for (i = 1; rc == SQL_SUCCESS || rc == SQL_SUCCESS_WITH_INFO; i++)
{
printf("%d: ", i);
print_result(hstmt);
rc = SQLMoreResults(hstmt);
}
if (rc != SQL_NO_DATA)
CHECK_STMT_RESULT(rc, "SQLMoreResults failed", hstmt);
rc = SQLFreeStmt(hstmt, SQL_CLOSE);
CHECK_STMT_RESULT(rc, "SQLFreeStmt failed", hstmt);
/*
* Free and allocate a new handle for the next SELECT statement, as we don't
* want to array bind that one. The parameters set with SQLSetStmtAttr
* survive SQLFreeStmt.
*/
rc = SQLFreeHandle(SQL_HANDLE_STMT, hstmt);
CHECK_STMT_RESULT(rc, "SQLFreeHandle failed", hstmt);
rc = SQLAllocHandle(SQL_HANDLE_STMT, conn, &hstmt);
if (!SQL_SUCCEEDED(rc))
{
print_diag("failed to allocate stmt handle", SQL_HANDLE_DBC, conn);
exit(1);
}
/* Check that all the rows were inserted */
printf("Number of rows in table:\n");
sql = "SELECT COUNT(*) FROM tmptable";
rc = SQLExecDirect(hstmt, (SQLCHAR *) sql, SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed", hstmt);
print_result(hstmt);
rc = SQLFreeStmt(hstmt, SQL_CLOSE);
CHECK_STMT_RESULT(rc, "SQLFreeStmt failed", hstmt);
/* Check the contents of a few rows */
sql = "SELECT * FROM tmptable WHERE i IN (0, 1, 100, 9999, 10000) ORDER BY i";
rc = SQLExecDirect(hstmt, (SQLCHAR *) sql, SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed", hstmt);
print_result(hstmt);
rc = SQLFreeStmt(hstmt, SQL_CLOSE);
CHECK_STMT_RESULT(rc, "SQLFreeStmt failed", hstmt);
/* Clean up */
test_disconnect();
return 0;
}
|
