SQLite错误总结 1. android.database.sqlite.SQLiteConstraintException: error code 19: constraint failed错误原因 情况1:你定义的字段为 not null而插入时对应的字段却没值。 情况2:你定义的字段设定PRIMARY,而插入的值已经在表中存在。 情况3:在进行修改的时候set的id与where的id不同。 2.列命名规则 情况1:保...
抛异常 Microsoft.Data.Sqlite.SqliteException: 'SQLite Error 19: 'NOT NULL constraint failed: PhotoDetails.Link'.' 2. 初始化时 var tl = db.DbMaintenance.GetTableInfoList(); foreach (var t in tl) { db.DbMaintenance.DropTable(t.Name); } db.CodeFirst.InitTables(typeof(PhotoDetails)); 插...
问SQLiteConstraintException:错误代码19:约束失败EN200：正确的请求返回正确的结果，如果不想细分正确的请求...
= null) { console.log(`callback getRawFd failed error code: ${error.code}, message: $...
"code" class="cpp">#ifdef SQLITE_HAS_CODEC #include"./crypt.h" /*** 用于在 sqlite 最后关闭时释放一些内存 ***/ void sqlitepager_free_codecarg(void*pArg); #endif</pre <p></p> <>这个函数要在 sqlite3.c 开头声明,因为下面在 sqlite3.c 里面某些函数要插入这个函数调用。所以...
int code = sqlite3_prepare_v2(sqlite, sqlStr, -1, &stmt, NULL); while (sqlite3_step(stmt)==SQLITE_ROW) { char * cString =(char*)sqlite3_column_text(stmt, 0); NSString * value = [NSString stringWithCString:cString?cString:"NULL" encoding:NSUTF8StringEncoding]; ...
// 调用SQlite API时,如果成功则会返回SQLITE_OK,如果调用失败将返回一个错误码(Error code),指明发生了什么错误。对API调用的返回值进行适当检查,可以提高程序的健壮性。 NSInteger status = sqlite3_open_v2([self databasePath], &_pDB, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL); /* sqlite3...
如上异常堆栈中的错误信息error code 5: database is locked,经过查找发现code为5代表sqlite中的SQLITE_BUSY异常,详见:https://www.sqlite.org/rescode.html#busy,这里面说,SQLITE_BUSY(5)异常是一个数据库文件在被其他不同的数据库连接进行并发操作的时候写操作将补发继续,通常是多个进程的不同数据库连接对同一...
SQLite supports on-memory database management, which does not create any database files. To use a memory database in your Java code, get the database connection as follows: Connection connection = DriverManager.getConnection("jdbc:sqlite::memory:"); ...
ERROR: GDNative::get_symbol: No valid library handle, can't get symbol from GDNative object At: modules\gdnative\gdnative.cpp:315 ERROR: NativeScriptLanguage::init_library: No nativescript_init in "res://addons/godot-sqlite/bin/win64/libgdsqlite.dll" found ...