Question: I have a table consists of table name, for example:

TableA

```
    UID  TableName  CifKey  ...
    1     xxx       12345
    1     yyy       12345
    1     xxx       12345
    2     zzz       45678

```

How can I select data from tables that having name same as the `TableName` column in Table A?

For example:

```
SELECT A.a, B.b 
FROM TableA A 
JOIN ' + @TableName + ' B ON A.Cifkey = B.Cifkey 
WHERE A.uid = @uid AND A.cifkey = @cifkey

```

Thank you!

Answer: 
If the db is copied from the other server, just create a new admin user. The issue will resolve
Please ask hosting provider to increase php\_value `max_input_vars 75000`.