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

0 vote242 views1 answer
Sql server roles and users
SQL
16 votes278 views3 answers
T-SQL Add Column
SQL
0 vote251 views1 answer
Kill mysqld_safe process mariadb
SQL
8 votes271 views1 answer
Mysql dump restore
SQL
1 vote264 views1 answer
Oracle see column type
SQL
2 votes254 views1 answer
Sql server find columns list in tables
SQL
1 vote222 views2 answers
Mysql trim whitespace
SQL
0 vote261 views1 answer
Drop view in mysql
SQL
1 vote236 views4 answers
Sql now
SQL
0 vote233 views1 answer
Get id if is not equal in certain table
SQL