59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
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#include <stdio.h>
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#include <sql.h>
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#include <sqlext.h>
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#include <stdarg.h>
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#include "database.h"
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#include "cjson/cJSON.h"
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void main()
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{
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void * hdbc;
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/* 连接数据库 */
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hdbc = connect_database(1);
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/* 创建table, 其中列类型包括长整形、浮点型、字符串 */
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ret = create_database_table(1, hdbc, "ctest", "create table ctest ( id bigint, fl double, dt character(10), status character(7))");
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/* 向table插入数据 */
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for (i = 1; i < 6; i++)
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{
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char sql[256];
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sprintf( sql, "insert into ctest values( %ld, '%lf', '%s', '%s' )", i, i, i, i );
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ret = update_database(1, hdbc, 1, "ctest", sql, 0);
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}
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/* 使用参数化方法插入数据 */
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ret = update_database(1, hdbc, 1, "ctest", "insert into ctest values(?, ?, ?, '30' )", 3,
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DB_DATA_INT_TYPE, 4, 91123123333333333,
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DB_DATA_FLOAT_TYPE, 8, 11111111.555555555,
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DB_DATA_STRING_TYPE, 4, "TEMP");
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/* 使用参数化方法更新数据 */
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ret = update_database(1, hdbc, 1, "ctest", "update ctest set dt = 'database' where status = ?", 1, DB_DATA_STRING_TYPE, 4, "00017");
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/* 使用参数化方法删除数据 */
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ret = update_database(1, hdbc, 1, "ctest", "delete from ctest where status = ?", 1, DB_DATA_STRING_TYPE, 4, "30");
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/* 使用参数化方法查询数据库 */
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int num;
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char * retptr = NULL;
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retptr = select_datebase_by_number(1, hdbc, "ctest", "select * from ctest where id = ?", 1, 10, &num, 1, DB_DATA_INT_TYPE, 4, 91123123333333333);
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/* 释放查询数据库申请的内存 */
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ret = free_database_memory(1, "ctest", retptr);
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/* 根据指定信息查询数据库的获取的结果的条目数 */
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ret = get_select_datebase_number(1, hdbc, "ctest", "select * from ctest where id = '911231233333333337'", &num, 0);
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/* 使用参数化方法根据指定信息查询数据库的获取的结果的条目数 */
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ret = get_select_datebase_number(1, hdbc, "ctest", "select * from ctest where id = ?", &num, 1, DB_DATA_INT_TYPE, 4, 911231233333333337);
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/* 释放数据库连接 */
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ret = disconnect_database(1, hdbc);
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return;
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}
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