SQL Query to Update a table

Hi   HANA experts,

I have some doubt in SQL HANA qurey to update the table content.

My requirement is say example i need to change the content of column where ever texas is there,i need to change it as Michigan.

UPDATE “Claim_Value.T790” set  State  =  michigan WHERE  State  =  Texas; this is not working

when i google i could find only the update query if the content is integer value..can anybody help to solve this??