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

1 vote190 views1 answer
Oracle sql assign unique number to each grouping
SQL
14 votes203 views4 answers
Remove record from table sql
SQL
0 vote188 views1 answer
Initcap in sql
SQL
0 vote177 views1 answer
Mysql regex exact match
SQL
-1 vote184 views1 answer
MYSQL stored procedure select from
SQL
0 vote189 views2 answers
SQLSTATE[42S02]: Base table or view not found: 1146 Table 'world.admin_tasks' doesn't exist
SQL
-1 vote201 views1 answer
Search all database tables for a value sqlserver
SQL
0 vote202 views1 answer
T sql cursor tr
SQL
0 vote193 views1 answer
Inner join distinct
SQL
3 votes334 views9 answers
Linq to sql converter online
SQL