Suppose you have a database table named db_table1 with hundreds of columns and most of them contain lots of 0’s. I’m trying to count zeros for each column and divide it by the length of column so I can see the ratio of zeros in each column. The below code gives me the ratio of nulls in each column. But
Tag: zero
MySQL monthly Sale of last 12 months including months with no Sale
This query displaying result for only existing month. I need all 12 months sales. Output: Required Output: Answer Thanks for @pankaj hint, Here i resolved it via this query…