c9s

``` sql SELECT ... FROM table... WHERE column = 5 WHERE column > 5 WHERE column IS NULL WHERE column IN (1, 2, 3) WHERE column NOT IN (1, 2,...

http://www.postgresql.org/docs/9.3/static/sql-grant.html

String Comparison Functions http://dev.mysql.com/doc/refman/5.6/en/string-comparison-functions.html#operator_like

``` sql SELECT 'David_' LIKE 'David|_' ESCAPE '|'; ``` http://dev.mysql.com/doc/refman/5.6/en/string-comparison-functions.html#operator_like

http://www.postgresql.org/docs/9.1/static/app-dropuser.html

http://www.postgresql.org/docs/9.1/static/app-createuser.html

- http://stackoverflow.com/questions/20865747/geolocation-mysql-query - http://www.percona.com/blog/2013/10/21/using-the-new-spatial-functions-in-mysql-5-6-for-geo-enabled-applications/ - http://dev.mysql.com/doc/refman/5.0/en/spatial-extensions.html

e.g., ``` sql INSERT INTO films SELECT * FROM tmp_films WHERE date_prod < '2004-05-07'; ``` refs: - http://www.postgresql.org/docs/8.3/static/sql-insert.html