I know of two ways to insert without duplication. The first is using a WHERE NOT EXISTS clause: INSERT INTO table_name (col1, col2, col3)
I\'ve got a MySQL query that pulls lat longs from a database based on a criterion, tests whether these points are within a polygon, and returns the points that are within the polygon.
So, I\'ve got a webapp that lets users submit code. The submissions are stored in the code table, and a couple of columns of that are Fulltext-Indexed. This is how I have been performing searches up u
I have seen mysql queries with order by runs slow. Is there any specific way to optimize queries which use order by ?
I have two tables: one has a datetime column, the other has a date column. I want to join the two tables like this:
I have a MySQL query that goes as follows SELECT count(`clicks`.`user_id`) as total, `users`.`fullname` FROM
Using: UPDATE `play` SET `counter1` = `counter1` + LEAST(`maxchange`, FLOOR(`x` / `y`) ), `counter2` = `counter2` - LEAST(`maxchange`, FLOOR(`x` / `y`) ),
Working in MS SQL 2005 and I want to use a select statement within a wildcard where clause like so: SELECT text
I have two tables: A and P. I want to get information out of all rows in A whose id is in a temporary table I created, tmp_ids. However, there is additional information about A in the P table, foo, an
I have 2 tables: book ( id, title, age ) ----> 100 milions of rows author ( id, book_id, name,开发者_如何学Python born ) ----> 10 millions of rows
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