In sql server, query the size of the database and the size of each table in the database

MSDN information: https://msdn.microsoft.com/zh-cn/library/ms188776.aspx

If you just query the size of the database, you can use the following statement directly:

EXEC sp_spaceused

In order to ensure real-time query results, it is recommended to use the @updateusage parameter to ensure that the statistics are up-to-date:

EXEC sp_spaceused @updateusage = N'TRUE';

After the execution is completed, the result is two tables, the first table contains basic statistical information, and the second table shows more detailed data occupancy.

If you want to specifically query the size of a table, just add the table name:

EXEC sp_spaceused 'spt_values'

The result is simple:

(over)

 

 

。。。

In fact, if you can look up a table, you just want to figure out how to look up all the tables in the database. . .

Well, let's have one, found on the Internet:

-- =============================================== --Description 
_ : Update the size of each table in the query database, and store the results in the data table 
-- ================================= ============= 
CREATE  PROCEDURE  [ dbo ] . [ sp_UpdateTableSpaceInfo ] 
AS 
BEGIN 
    -- Query whether the result store table exists 
    IF  NOT  EXISTS ( SELECT  *  FROM sysobjects where id =  OBJECT_ID (N ' temp_tableSpaceInfo ' ) AND  OBJECTPROPERTY (id, N ' IsUserTable ') =  1 )
     BEGIN 
        -- create 
        CREATE  TABLE temp_tableSpaceInfo if it does not exist
        (name NVARCHAR(128), 
        rows char(11), 
        reserved VARCHAR(18),
        data VARCHAR(18),
        index_size VARCHAR(18),
        unused VARCHAR ( 18 ))
     END 
    -- empty data table 
    DELETE  FROM temp_tableSpaceInfo

    --Define a temporary variable to store the table name when traversing 
    DECLARE  @tablename  VARCHAR ( 255 )

    --Use the cursor to read all the table table names in the database 
    DECLARE table_list_cursor CURSOR  FOR  
    SELECT name FROM sysobjects 
     WHERE  OBJECTPROPERTY (id, N ' IsTable ' ) =  1  AND name NOT  LIKE N ' #%% '  ORDER  BY name

    --Open the cursor 
    OPEN table_list_cursor
     --Read the first data 
    FETCH  NEXT  FROM table_list_cursor INTO  @tablename 

    -- Traverse the queried table name 
    WHILE  @@FETCH_STATUS  =  0
     BEGIN 
        -- Check whether the current table is a user table 
        IF  EXISTS ( SELECT  *  FROM sysobjects WHERE id =  OBJECT_ID ( @tablename ) AND  OBJECTPROPERTY (id, N ' IsUserTable ' ) =  1 )
         BEGIN 
            -- the current table reads its information and inserts it into the table 
            EXECUTE sp_executesql N ' INSERT INTO temp_tableSpaceInfo EXEC sp_spaceused @tbname ' , N '@tbname varchar(255) ' , @tbname  =  @tablename 
        END 
        -- read the next data 
        FETCH  NEXT  FROM table_list_cursor INTO  @tablename  
    END

    --Release the cursor 
    CLOSE table_list_cursor
     DEALLOCATE table_list_cursor
 END

GO

When using it, execute:

EXEC sp_UpdateTableSpaceInfo
SELECT * FROM temp_tableSpaceInfo

Well, it should be fine.