Difference between revisions of "+ (string)"
From SQLZOO
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<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></td></tr> | <tr><td align='left'>ingres</td><td>Yes</td><td></td></tr> | ||
| − | <tr><td align='left'>mysql</td><td>No</td><td>CONCAT(s1,s2)</td></tr> | + | <tr><td align='left'>mysql</td><td>No</td><td>[[CONCAT | CONCAT(s1,s2)]]</td></tr> |
<tr><td align='left'>oracle</td><td>No</td><td>s1 || s2</td></tr> | <tr><td align='left'>oracle</td><td>No</td><td>s1 || s2</td></tr> | ||
<tr><td align='left'>postgres</td><td>No</td><td>s1 || s2</td></tr> | <tr><td align='left'>postgres</td><td>No</td><td>s1 || s2</td></tr> | ||
Latest revision as of 17:21, 21 October 2012
| s1 + s2 | ||
|---|---|---|
| Engine | OK | Alternative |
| ingres | Yes | |
| mysql | No | CONCAT(s1,s2) |
| oracle | No | s1 || s2 |
| postgres | No | s1 || s2 |
| sqlserver | Yes | |
+ (strings)
+ allows you to stick two or more strings together.
This operation is concatenation.
s1 + s2
In this example you put the region and the name together for each country.
SELECT CONCAT(region,name) FROM bbc
SELECT region || name FROM bbc
SELECT region + name FROM bbc
See also
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