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Auto_increment

MySQL hints

Mon, 2010-03-15 13:38 — oli

Table of Contents

  • Result set with temporary sequence
  • Determination of optimal length of prefixed indexes
  • Using MySQL keywords in table or columm names
  • Missing Primary Key Index
  • Problems while installing a MySQL 5.5 database
  • InnoDB AUTO_INCREMENT at 2nd position

Result set with temporary sequence

Sometimes you would like to have a result set with something like a rownum. You can do this at least in the following two ways:

a) with a TEMPORARY MEMORY table:

CREATE TEMPORARY TABLE mem (
    seq  INT NOT NULL …
tags: 
mysql
migration
innodb
hint
primary key
index
prefixed index
sequence
temporary
keyword
auto_increment
memory table
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