Difference between revisions of "SUBSTRING(ansi)"

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<tr><th colspan='3'>SUBSTRING(s FROM i FOR j)</th></tr>
 
<tr><th colspan='3'>SUBSTRING(s FROM i FOR j)</th></tr>
 
<tr><td align='center'>'''Engine'''</td><td align='center'>'''OK'''</td><td align='center'>'''Alternative'''</td></tr>
 
<tr><td align='center'>'''Engine'''</td><td align='center'>'''OK'''</td><td align='center'>'''Alternative'''</td></tr>
<tr><td align='left'>ingres</td><td>Yes</td><td>[[SUBSTRING(s,i,j)]]</td></tr>
+
<tr><td align='left'>ingres</td><td>Yes</td><td>[[SUBSTRING |SUBSTRING(s,i,j)]]</td></tr>
<tr><td align='left'>oracle</td><td>No</td><td>[[SUBSTR(s,i,j)]]</td></tr>
+
<tr><td align='left'>oracle</td><td>No</td><td>[[SUBSTR |SUBSTR(s,i,j)]]</td></tr>
<tr><td align='left'>postgres</td><td>Yes</td><td>[[SUBSTRING(s,i,j)]]</td></tr>
+
<tr><td align='left'>postgres</td><td>Yes</td><td>[[SUBSTRING |SUBSTRING(s,i,j)]]</td></tr>
<tr><td align='left'>sqlserver</td><td>No</td><td>[[SUBSTRING(s,i,j)]]</td></tr>
+
<tr><td align='left'>sqlserver</td><td>No</td><td>[[SUBSTRING |SUBSTRING(s,i,j)]]</td></tr>
 
</table>
 
</table>
 
<h1> SUBSTRING (ansi)</h1>
 
<h1> SUBSTRING (ansi)</h1>

Revision as of 16:26, 16 July 2012

Compatibility
SUBSTRING(s FROM i FOR j)
EngineOKAlternative
ingresYesSUBSTRING(s,i,j)
oracleNoSUBSTR(s,i,j)
postgresYesSUBSTRING(s,i,j)
sqlserverNoSUBSTRING(s,i,j)

SUBSTRING (ansi)

SUBSTRING allows you to extract part of a string.

   SUBSTRING('Hello world' FROM 2 FOR 3) -> 'llo'    

In this example you put the region and the name together for each country.

SELECT name,
       SUBSTRING(name, 2, 5)
  FROM bbc
SELECT name,
       SUBSTR(name, 2, 5)
  FROM bbc
SELECT name,
       SUBSTRING(name FROM 2 FOR 5)
  FROM bbc

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