where with count sql code example

Example 1: sql query to get the number of rows in a table

SELECT COUNT(*) FROM tablename

Example 2: sql count where

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;

Example 3: To count number of rows in SQL table

SELECT count(*)
FROM information_schema.columns
WHERE table_name = 'Your_table_nale';