How Can I Efficiently Determine Row Counts for All Tables in a SQL Server Database?

Efficiently Counting Rows in All SQL Server Database Tables

This guide demonstrates how to quickly retrieve the row count for every table within a SQL Server database. This is invaluable for assessing database size and identifying tables with significant data volumes.

Retrieving Row Counts for All Tables

The following SQL script provides a streamlined method for obtaining row counts for all tables:

<code class="language-sql">CREATE TABLE #rowCounts (
    TableName VARCHAR(255),
    RowCount INT
);

EXEC sp_MSForEachTable 'INSERT INTO #rowCounts (TableName, RowCount) SELECT ''?'' , COUNT(*) FROM ?';

SELECT TableName, RowCount 
FROM #rowCounts 
ORDER BY RowCount DESC;

DROP TABLE #rowCounts;</code>

This script leverages a temporary table (#rowCounts) to store table names and their respective row counts. The sp_MSForEachTable stored procedure iterates through each table, executing a COUNT(*) query and populating the temporary table. The final SELECT statement presents the results, sorted by row count in descending order.

Calculating the Total Row Count

To determine the total number of rows across all database tables, simply append this query:

<code class="language-sql">SELECT SUM(RowCount) AS TotalRowCount FROM #rowCounts;</code>

This concise query sums the row counts from the temporary table, providing a single value representing the database's total row count.

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