Detailed introduction to the MySQL code case for creating a database with special characters

This article mainly introduces you to MySQLHow to create a database name with special characters. The article gives detailed sample code. Friends in need can refer to the following. Let’s take a look together.

Preface

This article explains how to create a database name with special characters in MySQL. The special characters here include: !@# $%^

##The method is as follows

Use backticks` to include the database name, backticks`(the use of quotes is not allowed) means in English In the input method state, press the Esc key corresponding to the key below to come out. Of course, when the database name is not included in backticks`, if the database name contains special characters, an error will be reported.

For example, using the following creation command will report an error:

mysql> CREATE DATABASE www.mafutian.net DEFAULT CHARSET UTF8;
1064 - Erreur de syntaxe près de '.mafutian.net DEFAULT CHARSET UTF8' à la ligne 1

Correct creation method:

mysql> CREATE DATABASE `www.mafutian.net` DEFAULT CHARSET UTF8;
Query OK, 1 row affected

As shown below:

Another example:

mysql> CREATE DATABASE `!@#$%^&*()_+.` DEFAULT CHARSET UTF8;
Query OK, 1 row affected
mysql> USE !@#$%^&*()_+.
 -> ;
1064 - Erreur de syntaxe près de '!@#$%^&*()_+.' à la ligne 1
mysql> USE `!@#$%^&*()_+.`;
Database changed
mysql> SELECT database();
+---------------+
| database() |
+---------------+
| !@#$%^&*()_+. |
+---------------+
1 row in set

As can be seen from the above, when selecting a database, you also need to use backticks ` to enclose the database name. As shown below:

Similarly, when deleting a database, you also need to use backticks ` to enclose the database name:

mysql> DROP DATABASE `www.mafutian.net`;
Query OK, 0 rows affected
mysql> DROP DATABASE `!@#$%^&*()_+.`;
Query OK, 0 rows affected

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