query to remove all characters after last comma in string

Question

i have a mysql table with this sort of data

TACOMA, Washington, 98477

Now i have thousands of such rows. I want the data to be manipulated

Answer 1

Possibly this way. Count the number of commas (by checking the length against the length with all the commas removed) and then use SUBSTRING_INDEX to get the string up to the number of commas:-

SELECT SUBSTRING_INDEX(col, ',', LENGTH(col) - LENGTH(REPLACE(col, ',', '')))
FROM SomeTable