Question

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What's the best way to delete all data from a table?

Clear all items from a table in Sqlite3 IPHONE? supported? DROP TABLE? DELETE FROM TABLA_1?

   - (void) DeleteDataSqlite3 {
    NSLog(@"Borra data");
    const char *dbpath = [databasePath UTF8String];
    sqlite3_stmt    *statement; 
    NSString *querySQL = @"DELETE FROM EVENTOS";
    const char *query_stmt = [querySQL UTF8String];
    //Open d
    if (sqlite3_open(dbpath, &eventosDB) == SQLITE_OK){
        if (sqlite3_prepare_v2(eventosDB, query_stmt, -1, &statement, NULL) == SQLITE_OK){
            NSLog(@"oK");
        }else {
            NSLog(@"Error !query");
        }
    }else {
        NSLog(@"Open error");
    }
   sqlite3_close(eventosDB); 
   }

Thanks!!!

Answer 1

Most modern databases including SQLite support rapid mass deletes. In practice there is not much to gain from dropping the table instead.