run same command for all tables in a databse of sql

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Hi guys,
Can anyone please tell me that how can i execute a same query for all the tables of a database.I am already having the names of all tables retrieved by a query i.e

SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='BASE TABLE'

Query for database is that it must check the condition(where day is Monday and period4 is null) for all tables.

Please help me as soon as it could be possible as it a part of my project.
Regards,
Akkywadhwa

Posted 15-May-12 1:49am

Akkywadhwa

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Manas Bhardwaj · Accepted Answer · 2012-05-15T01:57:00

You can use this as a starting point:

SQL

CREATE TABLE #DBTables (Name NVARCHAR(256), ID INT IDENTITY)

INSERT #DBTables
SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='BASE TABLE'

DECLARE @Count INT, @RC INT
SET @RC = @@ROWCOUNT
SET @Count = 1

WHILE (@Count < @RC)
BEGIN
    DECLARE @TableName NVARCHAR(256)

    SELECT @TableName = Name FROM #DBTables WHERE ID = @Count

    DECLARE @Query NVARCHAR(MAX)

    SET @Query = 'SELECT * FROM ' + @TableName + ' WHERE Day = ''Monday'' AND Period4 = NULL'

    EXEC(@Query)

    SET @Count = @Count + 1
END

DROP TABLE #DBTables

Mohamed Mitwalli · Accepted Answer · 2012-05-15T02:02:00

Hi ,
Check this

C#

using (
              SqlConnection con =
                  new SqlConnection(ConfigurationManager.ConnectionStrings["testConnectionString"].ConnectionString))
       {
           using(SqlCommand cmd = new SqlCommand("SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='BASE TABLE'",con))
           {
               DataTable dt = new DataTable();
               SqlDataAdapter adpt = new SqlDataAdapter(cmd);
               adpt.Fill(dt);
               foreach (DataRow row in dt.Rows)
               {
                      //Here put your condtions for cmd2
                   using (SqlCommand cmd2 = new SqlCommand("select * from " + row[0], con)) ;
                   {
                       SqlDataAdapter adpt2 = new SqlDataAdapter(cmd);
                       DataTable dt2 = new DataTable();
                       adpt2.Fill(dt2);
                   }
               }
           }
       }

Best Regards
M.Mitwalli

run same command for all tables in a databse of sql

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