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;

To count number of rows in SQL table

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

Sql count(*)

SELECT COUNT(column_name)
FROM table_name
WHERE condition;

Similar codes

0 vote212 views1 answer
How to get button for every record from mysql
SQL
0 vote196 views1 answer
Oracle list partitions
SQL
0 vote220 views1 answer
Set root password mysql xampp
SQL
0 vote179 views1 answer
Postgresql create user roles
SQL
4 votes177 views1 answer
Invalid reference to FROM-clause entry for table "unidades
SQL
3 votes181 views1 answer
Oracle list user grants
SQL
0 vote206 views2 answers
Transaction php
SQL
0 vote184 views1 answer
Pgsql is not permitted to log in
SQL
0 vote183 views1 answer
Codeigniter 3 get best-selling products
SQL
9 votes187 views4 answers
How to alter table column name in mysql
SQL