MySQL SUM Function The MySQL SUM function takes the fields or rows you input and adds their values together, then returns the total. Save your query in a PHP variable.

Multiple Field Search With PHP and mySQL. Search engines are integral features to any well designed website, but how well does your search engine work?

Hiya,I want to update in one table dependant on the contents of another table, like;UPDATE table1 set column1 = '0' where table2 column2 ...