To do this, you need to add the COLLATE LATIN1_GENERAL_CS operator to your where clause .  In the example below only documents where the table_id=loans will be displayed, table_id=LOANS or table_id= Loans would not.  Without the COLLATE LATIN1_GENERAL_CS clause the searches are not case sensitive and all of the previous examples would be returned. 

 Example

SELECT * FROM `reed`.`doc_id_table_id`

Where table_id COLLATE LATIN1_GENERAL_CS='loans'