how to count rows in sql code example

Example 1: sql query to get the number of rows in a table

SELECT COUNT(*) FROM tablename

Example 2: 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;

Example 3: To count number of rows in SQL table

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

Example 4: how to count number of rows in sql

SELECT COUNT(*)
FROM dbo.bigTransactionHistory;