- (int) GetCount :(NSString *)UserID
{
[self createEditableCopyOfDatabaseIfNeeded];
[self initializeDatabase];
int count = 0;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:@"dbfav2table.sqlite"];
if (sqlite3_open([path UTF8String], &database) == SQLITE_OK)
{
sqlite3_stmt *statement;
NSString *sql_str = [NSString stringWithFormat:@"SELECT count(*) FROM tablename WHERE userID='%@'", UserID];
const char *sqlStatement = (char *)[sql_str UTF8String];
NSLog(@"%@", [NSString stringWithUTF8String:sqlStatement]);
if( sqlite3_prepare_v2(database, sqlStatement, -1, &statement, NULL) == SQLITE_OK )
{
while( sqlite3_step(statement) == SQLITE_ROW )
{
count = sqlite3_column_int(statement, 0);
NSLog(@"count for %@ is %i",UserID,count);
}
}
else
{
NSLog( @" Error is: %s", sqlite3_errmsg(database) );
}
// Finalize and close database.
sqlite3_finalize(statement);
sqlite3_close(database);
}
return count;
}
if it returns count = 1 it means there is already a value with same userId exist, else there is no such value. hope it helps
solved how to does not record in sqlite if it is already in table [closed]