docs:mysql:foreign_keys

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docs:mysql:foreign_keys [2007/09/08 17:20] – created billhdocs:mysql:foreign_keys [2008/08/03 00:25] (current) – external edit 127.0.0.1
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 ====== Foreign Keys ====== ====== Foreign Keys ======
 +  * http://dev.mysql.com/doc/refman/5.0/en/innodb-foreign-key-constraints.html
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 Foreign Keys provide a means to maintain "referential integrity."  Since primary keys are often stored in related tables instead of duplicating unnecessary data, we must make sure that the record referenced by a primary key exists. Foreign Keys provide a means to maintain "referential integrity."  Since primary keys are often stored in related tables instead of duplicating unnecessary data, we must make sure that the record referenced by a primary key exists.
  
  • docs/mysql/foreign_keys.1189293656.txt.gz
  • Last modified: 2008/08/03 00:25
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