Divide too big packets into smaller pieces

In attachment example of very big packet (around 2MB).
It starts:

INSERT INTO watchdog
(uid, type, message, variables, severity, link, location, referer, hostname, timestamp)
VALUES
(1, 'php', '%message in %file on line %line.', 'a:4:{s:6:\\\"%error\\\";s:12:\\\"user warning\\\";s:8:\\\"%message\\\";s:1768134:\\\"MySQL server has gone away\\nquery: UPDATE sessions SET uid = 1, cache = 0, hostname = '127.0.0.1', session = 'messages|a:3:{s:5:\\\\"error\\\\";a:2574:{i:0;s:275:\\\\"warning: Missing argument 3 for genmod_install_new_menu(), called in D:\\\\\\\\bro\\\\\\\\websites\\\\\\\\drupalzone-dev\\\\\\\\trunk\\\\\\\\sites\\\\\\\\all\\\\\\\\modules\\\\\\\\custom\\\\\\\\genmod\\\\\\\\genmod.install on line 15 and defined in D:\\\\\\\\bro\\\\\\\\websites\\\\\\\\drupalzone-dev\...
...