Question

    -(void)updatepw{

databaseName=@"bestfb.sqlite";

NSArray *documnetPath=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documnetDir =[documnetPath objectAtIndex:0];
databasePath=[documnetDir stringByAppendingPathComponent:databaseName];

if (sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) {

NSString *update = [[NSString alloc] initWithFormat:@"update staff set pword = %@ where staffID=1;", todb];


sqlite3_stmt *selectstmt;

    const char *sql= (char *) update;
    NSLog(@"new sql :%@", sql);

    NSLog(@"values: %@", newpw.text);



    if(sqlite3_prepare_v2(database, sql, -1, &selectstmt, NULL) ==SQLITE_OK){
        NSLog(@"prepare failed");
        NSAssert1(0, @"Error: failed to prepare statement with message '%s'.", sqlite3_errmsg(database));
    }

    else {

        sqlite3_bind_text(selectstmt, 1, [todb UTF8String], -1, SQLITE_TRANSIENT);
        NSLog(@"binding done");

    }

    int success1 = sqlite3_step(selectstmt);        
    if (success1 != SQLITE_DONE) {
        NSAssert1(0, @"Error: failed to save priority with message '%s'.", sqlite3_errmsg(database));
    }
    sqlite3_finalize(selectstmt);

}   
sqlite3_close(database);

    }

大家好，我一直在努力解决错误数小时。我无法让数据库更新，只要我尝试更新它就会崩溃。

任何能提供帮助的人都是最受欢迎的！

请温柔，因为我只是XCode的新手。

Answer 1

我认为您在％@

之前和之后错过了下面句子中的单引号

替换为此。

NSString *update = [[NSString alloc] initWithFormat:@"update staff set pword = '%@' where staffID=1;", todb];

sqlite3中的断言失败使用XCode，绑定问题？

1 个答案: