Objective c SQLite update语句不工作

您好，我正在使用update语句更新sqlite数据库中的记录。请帮助我我的代码有什么错误。我不明白哪里错了。我正在使用下面的代码

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在

sqlite3\u bind\u text

语句之后调用

sqlite3\u步骤

失败。因此，您从未实际执行过SQL

因此，它应该看起来像：

sqlite3 *database;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0];
NSString *filePath = [documentsPath stringByAppendingPathComponent:@"Notes.sqlite"];
sqlite3_stmt *updateStmt = nil;
if(sqlite3_open([filePath UTF8String], &database) == SQLITE_OK)
{
    const char *sql = [[NSString stringWithFormat:@"update Notess Set Name=? Where NoteId = %@",_notesId] UTF8String];

    if(sqlite3_prepare_v2(database, sql, -1, &updateStmt, NULL) != SQLITE_OK)
        NSLog(@"Error while creating update statement. %s", sqlite3_errmsg(database));

    if (sqlite3_bind_text(updateStmt, 1, [textVew.text  UTF8String], -1, SQLITE_TRANSIENT) != SQLITE_OK)
        NSLog(@"Error while binding value. %s", sqlite3_errmsg(database));

    if (sqlite3_step(updateStmt) != SQLITE_DONE)
        NSLog(@"Error during step. %s", sqlite3_errmsg(database));

    sqlite3_finalize(updateStmt);
    sqlite3_close(database);
}else{
    NSLog(@"Error while opening database");
}

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什么不起作用？你是如何测试中间变量的值的？@Murali..那你为什么还没有接受它作为你的答案？…当有人通过投入时间帮助你解决问题时，然后学会回报他们一些东西…谢谢。。。

sqlite3 *database;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0];
NSString *filePath = [documentsPath stringByAppendingPathComponent:@"Notes.sqlite"];
sqlite3_stmt *updateStmt = nil;
if(sqlite3_open([filePath UTF8String], &database) == SQLITE_OK)
{
    const char *sql = [[NSString stringWithFormat:@"update Notess Set Name=? Where NoteId = %@",_notesId] UTF8String];

    if(sqlite3_prepare_v2(database, sql, -1, &updateStmt, NULL) != SQLITE_OK)
        NSLog(@"Error while creating update statement. %s", sqlite3_errmsg(database));

    if (sqlite3_bind_text(updateStmt, 1, [textVew.text  UTF8String], -1, SQLITE_TRANSIENT) != SQLITE_OK)
        NSLog(@"Error while binding value. %s", sqlite3_errmsg(database));

    if (sqlite3_step(updateStmt) != SQLITE_DONE)
        NSLog(@"Error during step. %s", sqlite3_errmsg(database));

    sqlite3_finalize(updateStmt);
    sqlite3_close(database);
}else{
    NSLog(@"Error while opening database");
}