← Back to branch summary

~drizzle-trunk/drizzle/development

« back to all changes in this revision

Viewing changes to docs/replace.rst

  • Committer: Olaf van der Spek
  • Date: 2011-02-12 18:24:24 UTC
  • mto: (2167.1.2 build) (2172.1.4 build)
  • mto: This revision was merged to the branch mainline in revision 2168.
  • Revision ID: olafvdspek@gmail.com-20110212182424-kgnm9osi7qo97at2
casts

Show diffs side-by-side

added added

removed removed

Lines of Context:
docs/replace.rst
 
1
Replacing Data
 
2
==============
 
3
 
 
4
In Dizzle you can make use of REPLACE to insert a new record into a table or
 
5
delete and insert a record in a table if a record matching the primary key
 
6
already exists. If no primary key or unique constraint is found on the table
 
7
then REPLACE is equivalent to INSERT.
 
8
 
 
9
A typical query:
 
10
 
 
11
REPLACE INTO table_1 SET a=5;
 
12
 
 
13
or
 
14
 
 
15
REPLACE INTO table_1 VALUES (4);
 
16
 
 
17
 
 
18
REPLACE is an extension to the SQL Standard that first appeared in MySQL.