How do I insert some data into an Sqlite 3 database - objective-c

Question

Through the following code I am retrieving data from a Db, however I need to insert some data into a Sqlite3 database with this code before select statement. Can any one tell me where I need to put the insert query and how can I execute it.
I am selecting the datas through the following code:
sqlite3* database;
- (void)initializeDatabase
{
list=[[NSMutableArray alloc] init];
BOOL success;
NSFileManager *filemanager=[NSFileManager defaultManager];
NSError *error;
NSArray *paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory= [paths objectAtIndex:0];
NSString *writablePath=[documentsDirectory stringByAppendingPathComponent:#"SymbolTalk.sqlite"];
success=[filemanager fileExistsAtPath:writablePath];
if(!success)
{
NSString *defaultDBPath=[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"SymbolTalk.sqlite"];
success=[filemanager copyItemAtPath:defaultDBPath toPath:writablePath error:&error];
if(!success)
{
NSAssert1(0,#"Failed to create writable databasefile withw message %#.",[error localizedDescription]);
}
}
//Specify where to get the database from
NSArray *paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory= [paths objectAtIndex:0];
NSString *path=[documentsDirectory stringByAppendingPathComponent:#"SymbolTalk.sqlite"];
//Open the database
//might have to make database as property
if(sqlite3_open([path UTF8String], &dataBase) ==SQLITE_OK)
{
const char *sql="select filename from scenes";
sqlite3_stmt *statement;
if(sqlite3_prepare(dataBase, sql, -1, &statement, NULL) == SQLITE_OK)
{
while (sqlite3_step(statement) == SQLITE_ROW)
{
//NSLog(#"%#",[NSString stringWithUTF8String:(char *)sqlite3_column_text(statement, 0)]);
[list addObject:[NSString stringWithUTF8String:(char *)sqlite3_column_text(statement, 0)]];
}
}
}
}

Answer 1

sqlite3_stmt *insert_statement = nil;
const char *sql = "INSERT INTO scenes (filename) VALUES(?)";
if (sqlite3_prepare_v2(database, sql, -1, &insert_statement, NULL) != SQLITE_OK) {
NSAssert1(NO, #"Error: failed to prepare statement with message '%s'.", sqlite3_errmsg(database));
}
sqlite3_bind_text(insert_statement, 1, [newFilename UTF8String], -1, SQLITE_TRANSIENT);
if (sqlite3_step(insert_statement) == SQLITE_DONE) {
// code if all ok
} else {
NSAssert1(NO, #"Error: failed to insert into the database with message '%s'.", sqlite3_errmsg(database));
}
sqlite3_reset(insert_statement);
sqlite3_finalize(insert_statement);