Drupal 4.5.x or older

My Drupal database has a table called cache that needs to be cleaned up as it is 1903.34 MB.
Can someone help me with suggestions how to do this?

Hello friends,

I have some advice to my specific needs, requirements on the web that i am going to build on Drupal. If a similar contribution has already been posted on this forum, I apologize, but I was unable to find it.

As a relative amateur I want to build a database for insertion and find out materials (say, something like a database and search portal, example here: http://sis.vso-praha.eu/clavius/eng/baze.htm), which will meet my requirements.

To describe the example,

I am using Superfish menu on Danland theme, Drupal 6. I have downloaded and installed Special Menu Items module because I do not want one of my menu items to point to a path. My "CONFERENCE" menu's path is set to "nolink" (without quotation marks). But it looks different compared to "HOME" and "ABOUT" menus. How can I make it look the same?

Image URL :

http://s1294.photobucket.com/user/itsy_bitsyy/media/picture_zps26dd4744....

I have installed wysiwyg module on my drupal 6.31. The module requires an editor which I installed CKEditor. However, wysiwyg doesn't see it as installed and when I go into my blocks I do not have the CKEditors toolbar. When I double click on ckeditor.js I get this error:

C:\xampp\htdocs\mywesite\sites\all\libraries\ckeditor\ckeditor.js
Line: 5
Char: 13
Error: 'window' is undefinted

What does it mean? Is anything wrong with my server?

Hello:

I'm read the Drupal API.
The function db_lock_table have this description:

"Lock a table. This function automatically starts a transaction"

And the MySQL code is:

"db_query('BEGIN; LOCK TABLE {'. db_escape_table($table) .'} IN EXCLUSIVE MODE'); "

What happend if I use this function with Postgres?
It's starts a transaction?
And the db_unlock_tables commits a transaction?
How I can rollback a transaction?

Thank's for your answer.

A day after I installed drupal and openpublic i started getting the error below:

Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 23360497 bytes) in /home/msbonlin/public_html/profiles/openpublic/modules/contrib/features/features.export.inc on line 577