T-SQL Script to get row count of all tables in the database

Posted on by Reza Rad
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Today I’ve wrote a simple script to get number of records for all tables in a database and fetch those tables that contains at least one record.

This picture shows an example of result set:

Here is the script:

declare @tempTable
table(tablename
varchar(max),

rowscount int,processed bit)

insert into @tempTable

select TABLE_NAME,0,0 from INFORMATION_SCHEMA.TABLES

where TABLE_CATALOG=‘DEMO’

declare
@currentTable varchar(max)

set
@currentTable=(select top 1 tablename from
@tempTable where processed=0)

declare
@sqlCommand nvarchar(500)

declare @rowsnum int

declare @param nvarchar(500)

set @param= N’@cnt int OUTPUT’;

while (select COUNT(*) from @tempTable where
processed=0)<>0

begin

set
@sqlCommand=N’select
@cnt=count(*) from ‘+@currentTable

EXECUTE sp_executesql @sqlCommand, @param, @cnt=@rowsnum OUTPUT;

update @tempTable

set processed=1,rowscount=@rowsnum

where tablename=@currentTable

set
@currentTable=(select top 1 tablename from
@tempTable where processed=0)

end

select tablename,rowscount from
@tempTable

where rowscount>0

order by rowscount desc

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Reza Rad
Trainer, Consultant, Mentor
Reza Rad is a Microsoft Regional Director, an Author, Trainer, Speaker and Consultant. He has a BSc in Computer engineering; he has more than 20 years’ experience in data analysis, BI, databases, programming, and development mostly on Microsoft technologies. He is a Microsoft Data Platform MVP for nine continuous years (from 2011 till now) for his dedication in Microsoft BI. Reza is an active blogger and co-founder of RADACAD. Reza is also co-founder and co-organizer of Difinity conference in New Zealand.
His articles on different aspects of technologies, especially on MS BI, can be found on his blog: https://radacad.com/blog.
He wrote some books on MS SQL BI and also is writing some others, He was also an active member on online technical forums such as MSDN and Experts-Exchange, and was a moderator of MSDN SQL Server forums, and is an MCP, MCSE, and MCITP of BI. He is the leader of the New Zealand Business Intelligence users group. He is also the author of very popular book Power BI from Rookie to Rock Star, which is free with more than 1700 pages of content and the Power BI Pro Architecture published by Apress.
He is an International Speaker in Microsoft Ignite, Microsoft Business Applications Summit, Data Insight Summit, PASS Summit, SQL Saturday and SQL user groups. And He is a Microsoft Certified Trainer.
Reza’s passion is to help you find the best data solution, he is Data enthusiast.

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