At 20:55 -0700 5/10/02, Frederick Shaul wrote:
>I understand what test% might mean, but don't know what test\_% means.

It's a SQL pattern string that matches a literal "test" followed by
a literal "_" followed by anything.  "_" in SQL patterns normally
matches any single character. "\_" escapes it to represent a literal
"_".  "%" is a SQL pattern character that matches any sequence of
characters, including the empty string.

>
>Following is from a fresh MySQL install ...
>
>mysql> use mysql;
>Reading table information for completion of table and column names
>You can turn off this feature to get a quicker startup with -A
>
>Database changed
>mysql> select * from db;
>+------+---------+------+-------------+-------------+-------------+-------------+-------------+-----------+------------+-----------------+------------+------------+
>| Host | Db      | User | Select_priv | Insert_priv | Update_priv | 
>Delete_priv | Create_priv | Drop_priv | Grant_priv | References_priv 
>| Index_priv | Alter_priv |
>+------+---------+------+-------------+-------------+-------------+-------------+-------------+-----------+------------+-----------------+------------+------------+
>| %    | test    |      | Y           | Y           | Y           | 
>Y           | Y           | Y         | N          | Y 
>| Y          | Y          |
>| %    | test\_% |      | Y           | Y           | Y           | 
>Y           | Y           | Y         | N          | Y 
>| Y          | Y          |
>+------+---------+------+-------------+-------------+-------------+-------------+-------------+-----------+------------+-----------------+------------+------------+
>2 rows in set (0.00 sec)


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