Scenario:
Was working on a project and needed to get list of all the tables from all the databases with columns. Write below script. The script uses cursor to loop through all the databases to get the list of tables with columns. You can filter the databases on which you would like to run the query. I have ignored the system databases such as master, model, tempdb and msdb.
USE master
GO
--Declare Variables
DECLARE @DatabaseName ASVARCHAR(500)
--Create Temp Table to Save Results
IF OBJECT_ID('tempdb..#Results') ISNOTNULL
DROPTABLE #Results
CREATETABLE #Results (
ServerName VARCHAR(128)
,DatabaseName VARCHAR(128)
,SchemaName VARCHAR(128)
,TableName VARCHAR(128)
,ColumnName VARCHAR(128)
,Data_Type VARCHAR(128)
,Is_Nullable VARCHAR(25)
,Character_Maximum_Length VARCHAR(10)
)
DECLARE CUR CURSOR
FOR
--Filter the Database for which you would like to get all the tables with columns
SELECT'[' + NAME + ']'AS DBName
FROM sys.databases
WHERE NAME NOTIN (
'master'
,'tempdb'
,'model'
,'msdb'
)
OPEN Cur
FETCHNEXT
FROM Cur
INTO @DatabaseName
WHILE@@FETCH_STATUS = 0
BEGIN
--Build dynamic sql for each database
DECLARE @SQLVARCHAR(MAX) = NULL
SET @SQL = 'Insert into #Results
Select
@@ServerName,
Table_Catalog as DatabaseName,
Table_Schema AS TableSchema,
Table_Name AS TableName,
Column_Name AS ColumnName
,Data_Type
,Is_Nullable
,Character_Maximum_Length
From' + @DatabaseName + '.information_Schema.Columns
where Table_Name in (Select Table_Name from ' + @DatabaseName + '.information_schema.Tables
where table_type=''BASE TABLE'')'
EXEC (@SQL)
PRINT @SQL
FETCHNEXT
FROM Cur
INTO @DatabaseName
END
CLOSE Cur
DEALLOCATE Cur
SELECT *
FROM #Results
orderby DatabaseName,TableName
