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How can we count the number of rows in a table using MySQL SELECT statement?

王林
Release: 2023-08-26 10:21:14
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我们如何使用 MySQL SELECT 语句来统计表中的行数?

We need to use the COUNT(*) function and the SELECT clause to count the total number of rows in the table.

Example

mysql> Select COUNT(*) from Student;

+----------+
| COUNT(*) |
+----------+
| 4        |
+----------+

1 row in set (0.06 sec)
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The above query calculates the total number of rows in the "Student" table.

We can also use the WHERE clause with the COUNT(*) function as follows:

mysql> Select COUNT(*) from Student where Address = 'Delhi';

+----------+
| COUNT(*) |
+----------+
| 2        |
+----------+

1 row in set (0.00 sec)
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source:tutorialspoint.com
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