← Back to branch summary

~drizzle-trunk/drizzle/development

« back to all changes in this revision

Viewing changes to docs/replace.rst

  • Committer: Patrick Galbraith
  • Date: 2010-10-03 13:40:30 UTC
  • mto: (1812.1.3 build)
  • mto: This revision was merged to the branch mainline in revision 1813.
  • Revision ID: patg@patg-desktop-20101003134030-j13wf1e79za77jtf
Added license to start_mc.sh.in to clear up ambiguity

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.