How can I get distinct count of multiple columns in SQL Server?

How do I count distinct values for multiple columns in SQL?

but when we want to count distinct column combinations, we must either clumsily concatenate values (and be very careful to choose the right separator): select count(distinct col1 || '-' || col2) from mytable; or use a subquery: select count(*) from (select distinct col1, col2 from mytable);

Can we use distinct on multiple columns in SQL?

Answer. Yes, the DISTINCT clause can be applied to any valid SELECT query. It is important to note that DISTINCT will filter out all rows that are not unique in terms of all selected columns.

How do I count multiple columns in SQL Server?

“how to get count of multiple columns in sql” Code Answer1mysql count multiple columns in one query:2SELECT.3count(*) as count_rows,4count(col1) as count_1,5count(col2) as count_2,6count(distinct col1) as count_distinct_1,7count(distinct col2) as count_distinct_2,8count(distinct col1, col2) as count_distinct_1_2.

How can I get distinct values of all columns in SQL?

MySQL – Distinct Values To get unique or distinct values of a column in MySQL Table, use the following SQL Query. SELECT DISTINCT(column_name) FROM your_table_name; You can select distinct values for one or more columns. The column names has to be separated with comma.