Question

I am trying to insert a set of values in an sqlite table using a for loop. It is inserting only one set of value. I am posting here my code:

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *databasePath = [documentsDirectory stringByAppendingPathComponent:@"myDatabase.sql"];

for(int i=0;i<[arr count];i++)
{
    sqlite3 *database;

    // Open the database from the users filessytem
    if(sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) {
        NSLog(@"\n inserting data \n");
        sqlite3_exec(database, [[NSString stringWithFormat:@"INSERT INTO AnswerConnect VALUES('%@')",[arr objectAtindex:i] ] UTF8String], NULL, NULL, NULL);    
        //sqlite3_finalize(compiledStatement);
        sqlite3_close(database);
    }       
}

Thanks in advance.

Answer 1

You have to first prepare a sqlite statement to insert data in table.Try this :

sqlite3_stmt *statement = nil    
const char *sql = "insert into tablename (col1,col2) Values( ?, ?)";

if(sqlite3_prepare_v2(database, sql, -1, &statement, NULL) != SQLITE_OK)
{
     NSLog(@"Error while creating add statement. '%s'", sqlite3_errmsg(database));
}

for(int i=0;i<[arr count];i++)
{
      sqlite3_bind_text(statement, 1,[[arr objectAtindex:i] UTF8String] , -1, SQLITE_TRANSIENT);

     if(SQLITE_DONE != sqlite3_step(add_statement))
     {
    NSLog(@"Error while inserting result data. '%s'", sqlite3_errmsg(database));
     }
     //Reset the add statement.
     sqlite3_reset(statement);
}