Log2SQL

Log2SQL is a program that imports (converts) web-server logs into an SQL-database. Both W3C and NCSA web log formats are supported.

After importing it becomes extremely easy to perform complex queries and searches with your logs, and finally, analyse your web-site statistics more efficiently.
Log2SQL offers two options of converting logs to SQL: 1) Import data directly into an existing Microsoft SQL Server database using the built-in native MS SQL support 2) Generate SQL-insert scripts which can be run against any other SQL-database (MySQL, Oracle etc.)
Log2SQL is distributed as FREEWARE for non-commercial use.