How to query, export and import stored procedures in mysql

This article mainly describes how to query and export, import mysql storage process, the text is very detailed, has a certain reference value, interested friends must read!

I. Stored procedures in queries

Method 1 (View the contents of the specified stored procedure):

select body from .proc where name='procedure_name';

Method 2 (see all stored procedures):

show procedure status;

Second, MySQL stored procedure export and import, the specific usage is:

1. derived

[root@localhost bin]# mysqldump -uroot -p -hlocalhost -P3306 -n -d -t -R DBName > procedure_name.sql

Parameter Description:

-n: --no-create-db

-d: --no-data

-t: --no-create-info

-R: --routines Dump stored routines (functions and procedures)

Mysqldump is a client-side tool used to backup databases or migrate data between different databases. The backup content contains SQL statements that create the live-mount table:

Main parameters:

1. connectivity options

-u,--user=name

-p,--password=name

-h,--host=name

-P,--port=#

2. Output Content Options

--add-drop-database

--add-drop-table

-n;--no-create-db

-d;--no-data

-t;--no-create-info

3. Output Format Options

--compact

-c --complete-insert

-T (specify that the data backup in the data table is a simple data file and a table SQL file)

Note: xx.sql table creation file is created by Linux root user, while xx.txt file is created by a Linux mysql user, so the storage path of these two files must ensure that mysql users have read and write permissions to create files.

--fields-terminated-by=name (field delimiter)

--fields-enclosed-by=name (domain reference)

--fields-optionally-enveloped-by =name

--fields-escaped-by=name(escape character)

4. Character Set Options

--default--character-set=xx

5. other options

-F --flush-logs

-l --lock-tables(read locks all tables)

2. import

mysql -hhostname -uusername - ppassword databasename < backupfile.sql

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