检测sqlite3数据库的完整性 

 1 /** 
 2  * @integrityCheck
 3  * @brief 检查数据库的完整性
 4  *
 5  * @param dbPath 数据库的路径
 6  * @返回值 0：完整； -1 损坏
 7  */
 8 int integrityCheck(const char *dbPath)
 9 {
10     int ret = -1;
11     sqlite3_stmt *integrity = NULL;
12     sqlite3 *db;
13     /*打开数据库*/
14     if (sqlite3_open(dbPath, &db) != SQLITE_OK)
15     {
16         logPrintf(LOG_LIB_ERROR, "Open database %s failed!\n", dbPath);
17         return ret;
18     }
19  
20     // integrity_check检查包括：乱序的记录、缺页、错误的记录、丢失的索引、唯一性约束、非空约束
21     //if ( sqlite3_prepare_v2( obj_db, "PRAGMA integrity_check;", -1, &integrity, NULL ) == SQLITE_OK )
22     //quick_check不检查约束条件，耗时较短
23     if ( sqlite3_prepare_v2(db, "PRAGMA quick_check;", -1, &integrity, NULL) == SQLITE_OK ) 
24     {
25         while (sqlite3_step(integrity) == SQLITE_ROW)
26         {
27             const unsigned char *result = sqlite3_column_text(integrity, 0);
28             if (result && strcmp((const char *)result, (const char *)"ok") == 0)
29             {
30                 ret = 0;
31                 break;
32             }
33         }
34  
35         sqlite3_finalize(integrity);
36     }
37  
38     /*关闭数据库*/
39     sqlite3_close(db);
40  
41     return ret;
42 }

 

posted @ 2023-01-31 14:05  dhhu007  阅读(359)  评论(0)    收藏  举报