Documentation Home
MySQL 8.0 Reference Manual
Related Documentation Download this Manual
PDF (US Ltr) - 45.2Mb
PDF (A4) - 45.2Mb
PDF (RPM) - 40.9Mb
HTML Download (TGZ) - 10.6Mb
HTML Download (Zip) - 10.6Mb
HTML Download (RPM) - 9.2Mb
Man Pages (TGZ) - 207.8Kb
Man Pages (Zip) - 309.9Kb
Info (Gzip) - 4.0Mb
Info (Zip) - 4.0Mb
Excerpts from this Manual

27.4.5.7 The list_add() Function

Adds a value to a comma-separated list of values and returns the result.

This function and list_drop() can be useful for manipulating the value of system variables such as sql_mode and optimizer_switch that take a comma-separated list of values.

Parameters
  • in_list TEXT: The list to be modified.

  • in_add_value TEXT: The value to add to the list.

Return Value

A TEXT value.

Example
mysql> SELECT @@sql_mode;
+----------------------------------------+
| @@sql_mode                             |
+----------------------------------------+
| ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES |
+----------------------------------------+
mysql> SET @@sql_mode = sys.list_add(@@sql_mode, 'NO_ENGINE_SUBSTITUTION');
mysql> SELECT @@sql_mode;
+---------------------------------------------------------------+
| @@sql_mode                                                    |
+---------------------------------------------------------------+
| ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION |
+---------------------------------------------------------------+
mysql> SET @@sql_mode = sys.list_drop(@@sql_mode, 'ONLY_FULL_GROUP_BY');
mysql> SELECT @@sql_mode;
+--------------------------------------------+
| @@sql_mode                                 |
+--------------------------------------------+
| STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION |
+--------------------------------------------+

User Comments
User comments in this section are, as the name implies, provided by MySQL users. The MySQL documentation team is not responsible for, nor do they endorse, any of the information provided here.
Sign Up Login You must be logged in to post a comment.