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This article explains how to use the functions in MySQL using the app SQL for Confluence (Pro Edition).

Instructions

Follow the steps:

1. Login to the Confluence instance.

2. Go to the required confluence page and edit the same.

3. Add SQL macro and go to the Edit option to open the settings for SQL settings.
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4. Select the Data source profile and write the SQL statement as shown in the below image.
   
   a. CONCAT () - This function allows you to add two or more strings together.
   

   Code Block
   language sql
   SELECT user_name, CONCAT( display_name," ", active," ",created_date) AS Userdetails FROM cwd_user;

   
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    Click on Save settings and Update the page.
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   b. JOIN - A JOIN clause is used to combine rows from two or more tables, based on a related column between them.
   
   In below example, we have join two tables cwd_user and cwd_group. Displayed the result based on both the tables.

   Code Block
   language sql
   SELECT user_name,last_name,group_name FROM cwd_user JOIN cwd_group on cwd_user.directory_id = cwd_group.directory_id;

   
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     Click on Save settings and Update the page.
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   c. LEFT () - ThisThis function is a string function that returns the left part of a string with a specified length. 
   
       In below example, the following statement uses the LEFT function to return the 5 leftmost characters of the stringMySQL LEFT.
   

   Code Block
   language sql
   SELECT group_name, LEFT(group_name, 5) summary FROM cwd_group;

   
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