Sql count(*)

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 vote341 views1 answer
Sql server select record with max id
SQL
0 vote328 views2 answers
Cascade syntax in sql
SQL
0 vote372 views1 answer
Create user faunadb
SQL
6 votes322 views3 answers
Mysql first day of year
SQL
0 vote328 views1 answer
Mysql beautifier terminla
SQL
0 vote324 views1 answer
How to save data in database in mysql node
SQL
1 vote338 views1 answer
Backup mysql data only
SQL
1 vote336 views1 answer
Tsql get beginning of year
SQL
4 votes331 views2 answers
Host '192.168.43.100' is not allowed to connect to this MySQL server
SQL
1 vote316 views1 answer
Set statiscis on in sql server
SQL