Blank page in SSRS

In SSRS some times we are facing the problem of blank pages and so many times it will became night mare to fix this issue.

Reason: Whenever we are hiding the rows or columns in SSRS it will take the blank space for the hidden row.

Solution: Now there are two solution for this problem.

1. Give the minimum possible width to the row or minimum possible height to the column. This is not a better way to fix this problem.
2. To fix this problem in a better way you can set the ConsumeContainerWhitespace = True in reports property.

Thx,

RS

How to find nth highest salary

In this post I will explain how to get the nth highest salary for an employee in different ways. I have below record present in my employee table.

So first is the quite straight forward query

Now second we go with the sub query so that we can find nth salary as well.

So this query you can use to get the nth salary also, for that you have to change the number 2 from TOP 2 salary

Now third we can get the nth highest salary using co-related query as well.

Note: This query will not work with the duplicate salary.

Now we can use cte (common table expression) also for this.

This query will also not work with the duplicate salary. If you want to use the CTE for duplicate salary as well then you have to use the dense rank instead of Rank.

In the above query if you want to get the nth salary then you can change the number 2 with any number.

Thx,

RS

SQL-Server : Find value of a column in entire database

Some times we need to find one column is present in how many tables with the same value. For example I have employee database. In this empid column is present in 7 table. Now I want to check empid 101 is present in how many table. This we can find with below stored procedure.

CREATE PROCEDURE GetColumnValueInDatabase 
        @value VARCHAR(max) --value which we want to search

       ,@searchColumn VARCHAR(250)--specify the column name for which we need to search the value

AS

BEGIN

       DECLARE @qry VARCHAR(max)

       DECLARE @tabl TABLE (

              table_name VARCHAR(350)

              ,columnname VARCHAR(350)

              ,isprocessed BIT

              ,tableschema VARCHAR(5)

              )

       DECLARE @tabl_1 TABLE (

              table_name VARCHAR(350)

              ,columnname VARCHAR(350)

              )

       INSERT INTO @tabl

       SELECT tbls.TABLE_NAME

              ,cols.COLUMN_NAME

              ,0

              ,tbls.TABLE_SCHEMA

       FROM INFORMATION_SCHEMA.TABLES AS tbls

       JOIN INFORMATION_SCHEMA.COLUMNS AS cols ON tbls.TABLE_NAME = cols.TABLE_NAME

       WHERE cols.COLUMN_NAME = @searchColumn

       DECLARE @table_name VARCHAR(350)

              ,@columnname VARCHAR(350)

              ,@tblSchema VARCHAR(5)

       WHILE EXISTS (

                     SELECT 1

                     FROM @tabl

                     WHERE isprocessed = 0

                     )

       BEGIN

              SELECT TOP 1 @table_name = table_name

                     ,@columnname = columnname

                     ,@tblSchema = tableschema

              FROM @tabl

              WHERE isprocessed = 0

              ORDER BY table_name DESC

              SET @qry = 'SELECT ''' + @table_name + ''', ''' + @columnname + ''' FROM ' + @tblSchema + '.' + @table_name + ' where ' + @columnname + ' = ' + @value

              PRINT (@qry)

              INSERT @tabl_1

              EXEC (@qry)

              UPDATE @tabl

              SET isprocessed = 1

              WHERE table_name = @table_name

                     AND columnname = @columnname

       END

       SELECT *

       FROM @tabl_1

END

Example

EXEC GetColumnValueInDatabase 101,'empid'

Thx,
RS

SQL Server - Enabling Service Broker

In this post I will cover to enable the service broker id and solution of some error related to this.

With the help of below query we can see what is the service broker id of database and whether it is enabled or not.

SELECT

    is_broker_enabled AS IsServiceBrokerEnabled,

    service_broker_guid AS ServiceBrokerGUID,

    name AS DatabaseName,

    database_id AS DatabaseId

FROM sys.databases

In below screen shot highlighted row shows that service borker is not enabled for the database TestDatabase.

We can enable the service broker queue with the help of below query

ALTER DATABASE Database_Name SET ENABLE_BROKER;

If you have database which is huge in size then above query may take time. In that case you can use the below query.

ALTER DATABASE Database_Name SET ENABLE_BROKER WITH ROLLBACK IMMEDIATE;

Now, some time we are getting the error 

Msg 9772, Level 16, State 1, Line 1 
The Service Broker in database "Database_Name" cannot be enabled because there is already an enabled Service Broker with the same ID.

This error is coming because there is already one database which is having the same service broker id and system is trying to enable another database with the same service broker id. The solution of this error is to generate the new service broker id for the database. This we can achieve with below query

ALTER DATABASE Database_Name SET NEW_BROKER;

If you have database which is huge in size then above query may take time. In that case you can use the below query.

ALTER DATABASE [Database_name] SET NEW_BROKER WITH ROLLBACK IMMEDIATE;

Thx,

RS

How to Identify port number of SQL server

Hi, 

With the help of below query we can check the port number of sql server

select

 distinct local_net_address,

 local_tcp_port

from

 sys.dm_exec_connections

where

 local_net_address is not null

Thx, 

RS

how to check the dependencies of an object in SQL Server

Hi All,

This video will demonstrate you how to check the dependencies of an object.

Thx,
RS

How to rename an existing column using sp_rename

In this video I am showing how to rename an existing column using sp_rename.

Thx,

RS

SQL Server Basics

This post is for Basics of SQL Server. I will cover below topics in this post

• Create Table
• Data Types
• Variable Declaration
• CURD Operations 
• Joins Operators

Create Table

SQL server gives you the provision of creating table using design mode. Here I am showing the example How to create with query prompt.

CREATE Table TestTable1

(

      Id BIGINT

      ,Column1 VARCHAR(150)

      ,Column2 BIGINT

      ,Column3 DATETIME

)

This example is only for creating the table. While creating the table we can create the primary key, Index or we can the other properties as well.

Data Types

SQL-Server is having so many data types. I have already explain all the data types in this Link

Variable Declarations

In SQL-Server we can declare the variable using below syntax.

DECLARE @Temp VARCHAR(50)

SQL-Server 2012 we can declare and assign the variable at the same time

DECLARE @Temp VARCHAR(50) = 'Rahul Singi'

CURD Operations

Insert Statements:  Below is the example of insert data in table

INSERT INTO [dbo].[TestTable1]

          ([Id]

           ,[Column1]

              ,[Column2]

           ,[Column3])

    VALUES

             (1001

              ,'Rahul Singi'

           ,5001

           ,'02-23-1985')

INSERT INTO [dbo].[TestTable1] VALUES (1002 ,'Rahul Singi' ,5001 ,'02-23-1985')

For More detail you can use this Link

Update Statements:  Below is the example of Update data in table

     UPDATE TestTable1 SET Column1 = 'Gaurav' WHERE Id = 1002

If we will not use WHERE clause in update statement then it will update all the rows of the table. 

     For More detail you can use this Link

. 

     Select Statements: Below is the example of Select data in table. Select statement begins with the list of columns or expressions. At least one expression is required.

SELECT 1

SELECT GETDATE()

SELECT

      [Column1]

      ,[Column2]

      ,[Column3]

FROM

      TestTable1

From portion of the select statement assembles all the data source into a result set, which is then acted upon by the rest of the SELECT statements.

WHERE clause acts upon the record set  assembled by the FROM clause to filter certain rows based upon condition.

     

    For More detail you can use this Link

    Delete Statements: Below is the example of Select data in table

DELETE FROM TestTable1 WHERE Id = 1001

    For More detail you can use this Link

   Join Operators

   

   Inner Join: Inner join will give you the result of common rows from the two tables. Below is the pictorial representation of inner join

Below is the example query:

SELECT

      *

FROM

      TestTable1 T1

INNER JOIN

      TestTable2 T2

      ON

T1.id = T2.Id

    Outer Joins: There are three types of Outer Join.

    Left Outer Join: Left join will give you the result of common rows from the two tables and all the data from Left table. Below is the pictorial representation of Left Join

Below is the example query:

SELECT

      *

FROM

      TestTable1 T1

LEFT JOIN

      TestTable2 T2

      ON

      T1.id = T2.Id

     Right Outer Join: Right join will give you the result of common rows from the two tables and all the data from Right table. Below is the pictorial representation of Right Join

Below is the example query:

SELECT

      *

FROM

      TestTable1 T1

RIGHT JOIN

      TestTable2 T2

      ON

T1.id = T2.Id

     Full Outer Join: Full join will give you the result of all rows. Below is the pictorial representation of Full Join.

Below is the example query:

SELECT

      *

FROM

      TestTable1 T1

FULL OUTER JOIN

      TestTable2 T2

      ON

T1.id = T2.Id

    

    Thx,

    RS

SQL Server 2012 Data Type

Below is the list of SQL -Server 2012 Data Type

Thx,
RS

Change select * with Select columns

This is my first video article in this I am showing how to replace select * from will all the columns 

Thx,

RS

SQL formatting standards

In my job we are following some formatting standards for SQL. I have searched over the internet and found that every company is having their own SQL formatting standards. But these are the very common standards which every company is using. Below are the some examples to cover all the query.

Example of SELECT statement:

SELECT

    ST.ColumnName1,

    JT.ColumnName2,

    SJT.ColumnName3

FROM

    FirstTable FT

INNER JOIN

    SecondTable ST

ON

    FT.Id = ST.Id

    AND

    FT.ColumnName = ST.ColumnName

INNER JOIN

    ThirdTable TT

ON

    ST.SourceTableID = TT.SourceTableID

    AND

    ST.Column3 = TT.Column4

WHERE

    ST.SourceTableID = X

    AND

    TT.Column3 = Y

Example of UPDATE statement:

UPDATE

    TestTable

SET

    ColumnName1 = @value,

    ColumnName2 = @value2

WHERE

    Condition1 = @test

Example of INSERT statement:

INSERT INTO TestTable

(

    ColumnName1,

    ColumnName2,

    ColumnName3

)

VALUES

(

    @value1,

    @value2,

    @value3

)

Example of IF Block statement:

IF (Condition)

BEGIN

      --Logic

END

Thx,

RS