To display the list of SQL Server tables of a specific database, several solutions are possible. Indeed, to audit a database and its tables, it is common to want the list of tables in the form of a table or an Excel table. SQL Server developers also often look for tables, for example for impact analysis.
Thus, all the solutions presented in this article use system tables, such as information_schema.tables , sys.tables, sys.indexes, sys.partitions, sys.allocation_units or sys.schemas. Indeed it is useful to quickly list all the tables for an audit for example, whether it is technical or functional.
Display a list of all SQL Server tables with a single query?
To begin with, these 3 queries allow you to display the information in different ways. The first is a simple list of tables. The second query displays useful information such as the object_id column and the create_date and modify_date. The third query displays the schema, the number of rows and the disk space used by each table.
First option: Display all tables using the information_schema.tables table
For example, you can use the information_schema.table system table, as follows:
SELECT * FROM information_schema.tables WHERE table_type='BASE TABLE';
Second option : Use the system table sys.tables
You can see in the result of the query that the type of the tables stored in the column [type_desc] is “USER_TABLE”.
SELECT * FROM sys.tables;
Third option: Displaying tables and their sizes using multiple system tables
Use multiple SQL Server system tables such as sys.tables, sys.indexes, sys.partitions, sys.allocation_units and sys.schemas.
These tables are useful for displaying the list of tables. They are also used to display the number of rows in each table and the disk space used. For example, this query displays all tables with their number of rows sorted in descending order.
SELECT sch.name AS SCHEMANAME, tab.name AS TABLENAME, par.rows AS ROWCOUNTS, SUM(alc.total_pages) * 8 AS TOTAL_SPACE, SUM(alc.used_pages) * 8 AS USED_SPACE, (SUM(alc.total_pages) - SUM(alc.used_pages)) * 8 AS UNUSED_SPACE FROM sys.tables tab INNER JOIN sys.indexes ind ON tab.object_id = ind.object_id INNER JOIN sys.partitions par ON ind.object_id = par.object_id AND ind.index_id = par.index_id INNER JOIN sys.allocation_units alc ON par.partition_id = alc.container_id LEFT OUTER JOIN sys.schemas sch ON tab.schema_id = sch.schema_id GROUP BY tab.name, sch.name, par.rows ORDER BY par.rows DESC;
Note: The keyword “ORDER BY par.rows DESC;” is used to sort the list of SQL Server tables by their number of rows, in a descending order.
To sort by schema and then by table name, use “ORDER BY 1,2” or “ORDER BY sch.name, tab.name; ” instead.
The size of the tables is noted in KiloBytes or KB.
If you are still new to SQL Server and want to create a table, here is how to simply create a SQL Server table and insert a few rows of data.