Ios iphone sdk中的SQLITE错误(fmdb包装器)
我在sqlite包装器方法中有一个问题。。我已经定义了以下函数及其显示错误。。我无法解决它。所有我想做的事都是交换数据库中的行。它在sqlite管理器(firefox插件)中运行良好,只有sql语句。但是这里显示了一个错误,所以我假设我定义函数的方式可能是错误的。。有人能对这个问题稍微解释一下,这样会有帮助吗 提前谢谢 //这就是我在DB中定义函数的方式Ios iphone sdk中的SQLITE错误(fmdb包装器),ios,sqlite,fmdb,sqlitemanager,Ios,Sqlite,Fmdb,Sqlitemanager,我在sqlite包装器方法中有一个问题。。我已经定义了以下函数及其显示错误。。我无法解决它。所有我想做的事都是交换数据库中的行。它在sqlite管理器(firefox插件)中运行良好,只有sql语句。但是这里显示了一个错误,所以我假设我定义函数的方式可能是错误的。。有人能对这个问题稍微解释一下,这样会有帮助吗 提前谢谢 //这就是我在DB中定义函数的方式 -(NSMutableArray*)extractActivitytest:(int)pri { [db beginTransacti
-(NSMutableArray*)extractActivitytest:(int)pri
{
[db beginTransaction];
NSString* tSqlString = [NSString stringWithFormat:@"select Activity_Name from Activity where Priority = %d", pri];
FMResultSet *tRecordSet = (FMResultSet*)[db executeQuery:tSqlString];
NSMutableArray *rowArray = [[NSMutableArray alloc] init];
while ([tRecordSet next])
{
[rowArray addObject:[tRecordSet stringForColumn:COLUMN_ACT]];
}
return [rowArray autorelease];
[db commit];
}
///这就是我所说的
[long1 setTitle:[[[DBManager getInstance]extractActivitytest:1] objectAtIndex:0] forState:UIControlStateNormal];
[long2 setTitle:[[[DBManager getInstance]extractActivitytest:2] objectAtIndex:0]forState:UIControlStateNormal];
[long3 setTitle:[[[DBManager getInstance]extractActivitytest:3] objectAtIndex:0] forState:UIControlStateNormal];
[long4 setTitle:[[[DBManager getInstance]extractActivitytest:4] objectAtIndex:0]forState:UIControlStateNormal];
[long5 setTitle:[[[DBManager getInstance]extractActivitytest:5] objectAtIndex:0] forState:UIControlStateNormal];
[long6 setTitle:[[[DBManager getInstance]extractActivitytest:6] objectAtIndex:0] forState:UIControlStateNormal];
//这就是我得到的错误
2012-01-06 14:03:20.387 MyDaily6[5657:207] Path= /Users/rega/Library/Application Support/iPhone Simulator/4.3.2/Applications/5A554560-A01A-4F44-980E-CC200E037CFE/Documents/Goals.sqlite
2012-01-06 14:03:22.490 MyDaily6[5657:207] Error calling sqlite3_step (1: SQL logic error or missing database) SQLITE_ERROR
2012-01-06 14:03:22.491 MyDaily6[5657:207] DB Query: BEGIN EXCLUSIVE TRANSACTION;
2012-01-06 14:03:22.491 MyDaily6[5657:207] Error calling sqlite3_step (1: SQL logic error or missing database) SQLITE_ERROR
2012-01-06 14:03:22.492 MyDaily6[5657:207] DB Query: BEGIN EXCLUSIVE TRANSACTION;
2012-01-06 14:03:22.492 MyDaily6[5657:207] Error calling sqlite3_step (1: SQL logic error or missing database) SQLITE_ERROR
2012-01-06 14:03:22.493 MyDaily6[5657:207] DB Query: BEGIN EXCLUSIVE TRANSACTION;
2012-01-06 14:03:22.493 MyDaily6[5657:207] Error calling sqlite3_step (1: SQL logic error or missing database) SQLITE_ERROR
2012-01-06 14:03:22.494 MyDaily6[5657:207] DB Query: BEGIN EXCLUSIVE TRANSACTION;
2012-01-06 14:03:22.494 MyDaily6[5657:207] Error calling sqlite3_step (1: SQL logic error or missing database) SQLITE_ERROR
2012-01-06 14:03:22.495 MyDaily6[5657:207] DB Query: BEGIN EXCLUSIVE TRANSACTION;
MOVEDOWN = 42012-01-06 14:03:34.932 MyDaily6[5657:207] Error calling sqlite3_step (1: SQL logic error or missing database) SQLITE_ERROR
2012-01-06 14:03:34.933 MyDaily6[5657:207] DB Query: COMMIT TRANSACTION;
///另一个给出相同错误的类似函数
-(void)moveupData:(int)value1:(int)value2
{
NSString *stringSQL = [NSString stringWithFormat:@" UPDATE Activity SET Priority = (CASE WHEN Priority = %d THEN %d WHEN Priority = %d THEN %d END) WHERE Priority IN (%d,%d)", value1, value2];
[db executeQuery:stringSQL];
[db commit];
}
//这就是我打电话的方式
[[DBManager getInstance]moveupData:moveUp :moveDown];
//我犯了一个错误
2012-01-06 14:03:20.387 MyDaily6[5657:207] Path= /Users/rega/Library/Application Support/iPhone Simulator/4.3.2/Applications/5A554560-A01A-4F44-980E-CC200E037CFE/Documents/Goals.sqlite
2012-01-06 14:03:22.490 MyDaily6[5657:207] Error calling sqlite3_step (1: SQL logic error or missing database) SQLITE_ERROR
2012-01-06 14:03:22.491 MyDaily6[5657:207] DB Query: BEGIN EXCLUSIVE TRANSACTION;
2012-01-06 14:03:22.491 MyDaily6[5657:207] Error calling sqlite3_step (1: SQL logic error or missing database) SQLITE_ERROR
2012-01-06 14:03:22.492 MyDaily6[5657:207] DB Query: BEGIN EXCLUSIVE TRANSACTION;
2012-01-06 14:03:22.492 MyDaily6[5657:207] Error calling sqlite3_step (1: SQL logic error or missing database) SQLITE_ERROR
2012-01-06 14:03:22.493 MyDaily6[5657:207] DB Query: BEGIN EXCLUSIVE TRANSACTION;
2012-01-06 14:03:22.493 MyDaily6[5657:207] Error calling sqlite3_step (1: SQL logic error or missing database) SQLITE_ERROR
2012-01-06 14:03:22.494 MyDaily6[5657:207] DB Query: BEGIN EXCLUSIVE TRANSACTION;
2012-01-06 14:03:22.494 MyDaily6[5657:207] Error calling sqlite3_step (1: SQL logic error or missing database) SQLITE_ERROR
2012-01-06 14:03:22.495 MyDaily6[5657:207] DB Query: BEGIN EXCLUSIVE TRANSACTION;
MOVEDOWN = 42012-01-06 14:03:34.932 MyDaily6[5657:207] Error calling sqlite3_step (1: SQL logic error or missing database) SQLITE_ERROR
2012-01-06 14:03:34.933 MyDaily6[5657:207] DB Query: COMMIT TRANSACTION;
你确定你的数据库是打开的吗?你应该打电话
[db open]
对于第二部分,如果要写入数据库,则应使用
[db executeUpdate:stringSQL];
希望有帮助 你能告诉我们是什么问题吗?你怎么知道的?