в 13:44, 26 мая 2010

2010-05-26T13:44:56Z

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2010-05-26T09:49:21Z

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== If you wanted to trim leading and trailing characters, you would use the keyword BOTH==



<source lang="sql">
mysql>
mysql>
mysql> SELECT TRIM(BOTH "XXX" FROM "XXXFileNameXXX");
+----------------------------------------+
| TRIM(BOTH "XXX" FROM "XXXFileNameXXX") |
+----------------------------------------+
| FileName |
+----------------------------------------+
1 row in set (0.00 sec)
mysql></source>

== SELECT TRIM(LEADING "XXX" FROM "XXXFileName")==



<source lang="sql">
mysql>
mysql> SELECT TRIM(LEADING "XXX" FROM "XXXFileName");
+----------------------------------------+
| TRIM(LEADING "XXX" FROM "XXXFileName") |
+----------------------------------------+
| FileName |
+----------------------------------------+
1 row in set (0.00 sec)</source>

== The TRIM() function can trim spaces and characters or groups of characters.==



<source lang="sql">
mysql>
mysql>
mysql> SELECT TRIM(TRAILING "XXX" FROM "FileName.XXX");
+------------------------------------------+
| TRIM(TRAILING "XXX" FROM "FileName.XXX") |
+------------------------------------------+
| FileName. |
+------------------------------------------+
1 row in set (0.00 sec)
mysql></source>

== TRIM([{BOTH | LEADING | TRAILING} [remstr] FROM] str), TRIM([remstr FROM] str)==

Returns the string str with all remstr prefixes or suffixes removed.
If none of the specifiers BOTH, LEADING, or TRAILING is given, BOTH is assumed.
remstr is optional and, if not specified, spaces are removed.



<source lang="sql">
mysql>
mysql>
mysql> SELECT TRIM(" sqle ");
+---------------------+
| TRIM(" sqle ") |
+---------------------+
| sqle |
+---------------------+
1 row in set (0.00 sec)
mysql></source>

== TRIM(BOTH "x" FROM "xxxjava2sxxx");==



<source lang="sql">
mysql>
mysql>
mysql>
mysql> SELECT TRIM(BOTH "x" FROM "xxxsqlexxx");
+------------------------------------+
| TRIM(BOTH "x" FROM "xxxsqlexxx") |
+------------------------------------+
| sqle |
+------------------------------------+
1 row in set (0.00 sec)
mysql></source>

== TRIM(LEADING "x" FROM "xxxhava2sxxx");==



<source lang="sql">
mysql>
mysql> SELECT TRIM(LEADING "x" FROM "xxxhava2sxxx");
+---------------------------------------+
| TRIM(LEADING "x" FROM "xxxhava2sxxx") |
+---------------------------------------+
| hava2sxxx |
+---------------------------------------+
1 row in set (0.01 sec)
mysql></source>

== TRIM(TRAILING "xyz" FROM "java2sxxyz");==



<source lang="sql">
mysql>
mysql>
mysql> SELECT TRIM(TRAILING "xyz" FROM "sqlexxyz");
+----------------------------------------+
| TRIM(TRAILING "xyz" FROM "sqlexxyz") |
+----------------------------------------+
| sqlex |
+----------------------------------------+
1 row in set (0.01 sec)
mysql></source>

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MySQL Tutorial/String Functions/TRIM - История изменений

в 13:44, 26 мая 2010

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