Executes a SQL query, but fetches only the the specificed count of rows. It is an emulation of the MySQL LIMIT option.
the SQL query
if supplied, the types of the columns in the result set will be set for fetching
the row to start to fetch
the numbers of rows to fetch
Table 33-1. Possible PEAR_Error values
| Error code | Error message | Reason | Solution |
|---|---|---|---|
| MDB_ERROR_NO_DB_SELECTED | NULL | No database was choosen. | Check the DSN in connect() . |
| every other error code | Database specific error | Check the database related section of PHP-Manual to detect the reason for this error. In the most cases a misformed SQL statment. Ie. using LIMIT in a SQL-Statment for an Oracle database. |
This function can not be called statically.
| Warning |
This module is EXPERIMENTAL. That means that the behaviour of these functions, these function names, in concreto ANYTHING documented here can change in a future release of this package WITHOUT NOTICE. Be warned, and use this module at your own risk. |
Depending on the database you will not really get more speed compared to query() . The advantage of limitQuery() is the deleting of unneeded rows in the resultset, as early as possible. So this can decrease memory usage.