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SQL JOIN and different types of JOINs
... and right joins are similar, if you are not bothered which is the primary table the join is based on.
– Anup
Oct 12 '14 at 11:37
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Setting up foreign keys in phpMyAdmin?
I'm setting up a database using phpMyAdmin. I have two tables ( foo and bar ), indexed on their primary keys . I am trying to create a relational table ( foo_bar ) between them, using their primary keys as foreign keys.
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How can I tell when a MySQL table was last updated?
...updated the xx/xx/200x" with this date being the last time a certain mySQL table has been updated.
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Insert into … values ( SELECT … FROM … )
I am trying to INSERT INTO a table using the input from another table. Although this is entirely feasible for many database engines, I always seem to struggle to remember the correct syntax for the SQL engine of the day ( MySQL , Oracle , SQL Server , Informix , and DB2 ).
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How to find all tables that have foreign keys that reference particular table.column and have values
I have a table whose primary key is referenced in several other tables as a foreign key. For example:
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add column to mysql table if it does not exist
...ns is to record in your database a revision number for the schema. Just a table with a single column and single row, with an integer indicating which revision is current in effect. When you update the schema, increment the number.
Another solution would be to just try the ALTER TABLE ADD COLUMN c...
How to copy data from one table to another new table in MySQL?
I want to copy data from one table to another in MySQL.
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How do you truncate all tables in a database using TSQL?
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For SQL 2005,
EXEC sp_MSForEachTable 'TRUNCATE TABLE ?'
Couple more links for 2000 and 2005/2008..
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Cannot add or update a child row: a foreign key constraint fails
table 1
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SQL Inner-join with 3 tables?
I'm trying to join 3 tables in a view; here is the situation:
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