Hi, Howard 

Sorry for the delay

Our logic is based on a PHP SQL parser which has full support for the SQL dialect for the following statement types

SELECT, INSERT, UPDATE, DELETE, REPLACE, RENAME, SHOW, SET, DROP, CREATE INDEX, CREATE TABLE, EXPLAIN and DESCRIBE.

Some of them are disabled for security reasons.

Filtering, sorting, and search may not work properly if you include:

• Accent graves ( ` ) around the table name
• JOIN functions
• UNION functions
• CONCAT functions
• sub-queries

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So, first you can check for accent graves around the table name, if you have this, remove it, see if that solves the issue...

Then, see if you used CONCAT to create any column.

If so, go into this column setting, and disable it from "global search" in the Filtering tab.

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If none of that helps,

you can try preparing a MySQL view (which will return the data that you need, call it e.g. “view1” and then build a wpDataTables based on a simple query like "SELECT * FROM view1″.

 If you need help with that, you can see our video, where we show an example of using View in our plugin.

Let us know if that helps. Thank you