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我的问题是,我不能从选择查询中获取值,因为它执行101错误。SQLite查询语句 - 客观C
我认为我的问题是,它必须是在SELECT语句
的sqlite3 *数据库中的报价;
NSString * path = [[[ NSBundle mainBundle ]resourcePath ] stringByAppendingPathComponent : @"cars.sqlite"];
int returnCode = sqlite3_open ([ path cStringUsingEncoding : NSUTF8StringEncoding], &database) ;
sqlite3_stmt * statement ;
char * st ;
NSString *querySQL = [NSString stringWithFormat: @"select brand,model from cars where brand=%@;", tmpbrand];
const char *query_stmt = [querySQL UTF8String];
st = sqlite3_mprintf (query_stmt);
if(sqlite3_prepare_v2 (database , query_stmt , -1 ,& statement ,NULL)==SQLITE_OK){
returnCode = sqlite3_step (statement) ; // this statement returns a record
while (returnCode == SQLITE_ROW) // while there are rows
{
models*tmp=[[models alloc]init];
char* n=(char*)sqlite3_column_text(statement,0);
tmp=[NSString stringWithCString:n encoding:NSUTF8StringEncoding];
char* model=(char*)sqlite3_column_text(statement, 1);
tmp.model=[NSString stringWithCString:model encoding:NSUTF8StringEncoding];
[data addObject:tmp];
returnCode = sqlite3_step (statement) ; // this statement returns a record
}
sqlite3_finalize(statement);
}
}
我试图做到这一点与单引号,我couldnt设法使它的工作..如果有可能向我展示如何使用预处理语句来做到这一点..我相当一个begginer在这.. – 2015-04-02 11:45:23
这是第一个链接在Google搜索“objective c sqlite prepared statement”:http://stackoverflow.com/q/1187154/2998 – 2015-04-02 12:04:08