O'Reilly logo

MySQL Stored Procedure Programming by Steven Feuerstein, Guy Harrison

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Using Stored Programs in ASP.NET

In the final section of this chapter, let’s put our newly acquired Connector/Net and stored program skills to work to create a simple ASP.NET application.

The stored procedure we will use is shown in Example 17-41. It takes as an (optional) argument a database name, and it reports on the objects within that database, along with a list of users currently connected to the server, server status variables, server configuration variables, and a list of databases contained within the server. It contains one OUT parameter that reports the server version.

Example 17-41. Stored procedure for our ASP.NET example
CREATE PROCEDURE sp_mysql_info
    (in_database VARCHAR(60),
     OUT server_version VARCHAR(100))
    READS SQL DATA
BEGIN

  DECLARE db_count INT;

  SELECT @@version
    INTO server_version;

  SELECT 'Current processes active in server' as table_header;
  SHOW full processlist;


  SELECT 'Databases in server' as table_header;

  SHOW databases;

  SELECT 'Configuration variables set in server' as table_header;
  SHOW global variables;
  SELECT 'Status variables in server' as table_header;
  SHOW global status;


  SELECT COUNT(*)
    INTO db_count
    FROM information_schema.schemata s
   WHERE schema_name=in_database;
  IF (db_count=1) THEN
    SELECT CONCAT('Tables in database ',in_database) as table_header;
    SELECT table_name
      FROM information_schema.tables
     WHERE table_schema=in_database;
  END IF;

END$$

The number and type of result sets is unpredictable, since a list of database objects is generated only if ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required