sql count row code example

Example 1: sql count duplicate rows

SELECT _column, COUNT(*) 
FROM _table
GROUP BY _column
HAVING COUNT(*) > 1

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;

Example 5: sql insert query

INSERT INTO table_name (column1, column2, column3, ...)
VALUES (value1, value2, value3, ...);