Sql count if

Sql count

/*COUNT(column_name) will return the number of rows from the column 
that are not NULL*/
SELECT COUNT(column_name)
FROM table_name;

/*COUNT(*) will return the number of rows from the table*/
SELECT COUNT(*)
FROM table_name;

Condition in count sql

select count(case Position when 'Manager' then 1 else null end)
from ...


select sum(case Position when 'Manager' then 1 else 0 end)
from ...

Sql count if

COUNT(CASE WHEN <condition> THEN 1 END)

-1

Source: modern-sql.com

Sql count condition

SELECT count(CASE WHEN gender = 'F' THEN 1 ELSE NULL END) women_count,
       count(CASE WHEN gender = 'M' THEN 1 ELSE NULL END) men_count
FROM people;

-2

Similar codes

2 votes348 views1 answer
Coalesce sql
SQL
0 vote343 views5 answers
ABC TO FLEX BATTLE IM POOR
SQL
14 votes361 views4 answers
Sql compiler
SQL
13 votes375 views3 answers
Mysqldump structure only
SQL
0 vote327 views1 answer
Https://www.jitendrazaa.com/blog/sql/sqlserver/export-documents-saved-as-blob-binary-from-sql-server/
SQL
1 vote347 views1 answer
Mysql count all table rows
SQL
0 vote353 views1 answer
Acutal month year
SQL
0 vote398 views1 answer
Plpgsql create function
SQL
1 vote333 views1 answer
Convert epoch to date in sql server
SQL
0 vote266 views1 answer
Testing sql queries
SQL