mysql get count of rows
SELECT COUNT(*) FROM my_table;
SELECT COUNT(*) FROM my_table WHERE my_column IS NULL;
SELECT COUNT(*) FROM my_table WHERE my_column = 'my_value';
SELECT COUNT(DISTINCT tel) gender_count,
COUNT(DISTINCT CASE WHEN gender = 'male' THEN tel END) male_count,
COUNT(DISTINCT CASE WHEN gender = 'female' THEN tel END) female_count
FROM people;row number mysql
SELECT row_number() over ( order by firstName) RowNumberSqeuence,FirstName from rowNumberDemo
order by FirstName;Copyright © 2021 Codeinu
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