How to retrieve a particular column from a database in iphone - iphone

Question

in my project im using a database.There are almost 365 questions in that.so i want to get a particulat question for a particular day.i used the code below to fetch a qusestion from database.
-(void)print{
sqlite3_stmt *statement;
// SELECT * from light where rowid = %i",1
qsql=[NSString stringWithFormat:#"Select * from ishh where col_1 = '365'"];
if(sqlite3_prepare_v2(database, [qsql UTF8String], -1, &statement, NULL) == SQLITE_OK) {
NSLog(#"%dsssssssssssssss",sqlite3_step(statement));
NSLog(#"%ddddddddddddddddddddd", (SQLITE_ROW));
NSString *Q_NO = [[NSString alloc] initWithUTF8String:(char *)sqlite3_column_text(statement, 1)];
NSLog(#"%# gg",Q_NO);
when i use the above code it is printing the correct question from database.Also when i give the statement like qsql=[NSString stringWithFormat:#"Select * from ishh where col_1 = '1'"]; it is not fetching the question.
But when i use the below code it is not fetching from the database.
-(void)print{
sqlite3_stmt *statement;
// SELECT * from light where rowid = %i",1
qsql=[NSString stringWithFormat:#"Select * from ishh where col_1 = '1'"];
if(sqlite3_prepare_v2(database, [qsql UTF8String], -1, &statement, NULL) == SQLITE_OK) {
NSLog(#"%dsssssssssssssss",sqlite3_step(statement));
NSLog(#"%ddddddddddddddddddddd", (SQLITE_ROW));
NSString *Q_NO = [[NSString alloc] initWithUTF8String:(char *)sqlite3_column_text(statement, 1)];
NSLog(#"%# gg",Q_NO);
while (sqlite3_step(statement) == (SQLITE_ROW))
{
NSLog(#" iolo");
NSString *Q_NO = [[NSString alloc] initWithUTF8String:(char *)sqlite3_column_text(statement, 1)];
//NSString *Q_NO = [[NSString alloc] initWithString:[NSString stringWithFormat:#"%i",sqlite3_column_int(statement, 0)]];
NSLog(#"%# gg",Q_NO);
}
sqlite3_reset(statement);
}
sqlite3_finalize(statement);
}
Can anyone tell me where im going wrong.Thanks in advance.

Answer 1

-(void)print{
sqlite3_stmt *statement;
qsql=[NSString stringWithFormat:#"Select * from ishh where col_1 = '1'"];
if(sqlite3_prepare_v2(database, [qsql UTF8String], -1, &statement, NULL) == SQLITE_OK) {
while (sqlite3_step(statement) == (SQLITE_ROW))
{
char *field0 = (char *)sqlite3_column_text(statement, 0);
char *field1 = (char *)sqlite3_column_text(statement, 1);
NSString *Q_NO = nil;
if(field0!=NULL){
Q_NO = [[NSString alloc] initWithUTF8String:field0];
}
NSString *Q_NO1 = nil;
if(field1!=NULL){
Q_NO1 = [[NSString alloc] initWithUTF8String:field1];
}
NSLog(#"%# %#",Q_NO, Q_NO1);
[Q_NO release];
[Q_NO1 release];
}
}
sqlite3_finalize(statement);
}