Product:

Microsoft SQL server 2016

Microsoft Windows 2016

Problem:

How add data from one table to other table?

Suggested solution:

For the example we have downloaded the StackOverflow2013 database from here

https://www.brentozar.com/archive/2021/03/download-the-current-stack-overflow-database-for-free-2021-02/

Create a new table;

CREATE TABLE [dbo].[Staff](
[Id] [int] NOT NULL,
[CreationDate] [datetime] NOT NULL,
[DisplayName] [nvarchar](40) NOT NULL,
[DownVotes] [int] NOT NULL,
[LastAccessDate] [datetime] NOT NULL,
[Location] [nvarchar](100) NULL,
[Reputation] [int] NOT NULL,
[UpVotes] [int] NOT NULL,
[Views] [int] NOT NULL,
[AccountId] [int] NULL,
CONSTRAINT [PK_Staff_Id] PRIMARY KEY CLUSTERED 
(
[Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, OPTIMIZE_FOR_SEQUENTIAL_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
GO

To be able to copy IDENTITY values between tables you need to use IDENTITY_INSERT and specify the columns in the INSERT INTO statement (not used in our example) .

SET IDENTITY_INSERT dbo.Employee ON

To copy all rows for users from Denmark to the new table;

INSERT INTO dbo.Staff
SELECT
    [Id],
    [CreationDate] ,
    [DisplayName] ,
    [DownVotes] ,
    [LastAccessDate],
    [Location] ,
    [Reputation] ,
    [UpVotes] ,
    [Views] ,
    [AccountId]
FROM windows2016.stackoverflow2013.dbo.users
WHERE location = 'Denmark'

To set the value to zero for column DownVotes when View is less than 100;

UPDATE [StackOverflow2013].[dbo].[Staff]
  SET DownVotes = 0
  WHERE views < 100

Select only one row by use of ID column;

SELECT *
FROM StackOverflow2013.dbo.staff
WHERE id = 19 AND location = 'denmark'

UPDATE StackOverflow2013.dbo.staff
SET DownVotes = 1
WHERE id = 19 AND location = 'denmark'

SELECT 
       [Id]
      ,[CreationDate]
      ,[DisplayName]
      ,[DownVotes]
      ,[LastAccessDate]
      ,[Location]
      ,[Reputation]
      ,[UpVotes]
      ,[Views]
      ,[AccountId]
  FROM [StackOverflow2013].[dbo].[Staff]
  ORDER BY views DESC

More information:

http://www.sql-server-helper.com/error-messages/msg-8101.aspx

https://www.sqlshack.com/how-to-copy-tables-from-one-database-to-another-in-sql-server/

https://www.sqlshack.com/overview-of-the-sql-insert-statement/

https://www.tutorialspoint.com/sql/sql-order-by.htm

Product:

Microsoft SQL server 2016

Issue:

How do I give access only to a table?

Solution:

Ensure the user exist in the database. Enter below SQL query to create a role (RESTRICTED_SELECT), and set the SELECT to a table (TABLE_NAME) for that role. Last add the user (USER_NAME) to the role.  Replace values with your user and table names.

Or better add a AD group to the role, then the IT department can add people to that AD group to get access to the table.

CREATE ROLE RESTRICTED_SELECT
GO
GRANT SELECT ON TABLE_NAME TO RESTRICTED_SELECT
GO
SP_ADDROLEMEMBER RESTRICTED_SELECT , USER_NAME

If i want give access to a function, for instance the user should be able to see Active Monitor from SSMS enter below SQL query.

USE master;
CREATE SERVER ROLE SQLMonitor ;
GRANT VIEW SERVER STATE TO SQLMonitor ;
GO

To view the Data File I/O pane, besides VIEW SERVER STATE, the login must be granted CREATE DATABASE, ALTER ANY DATABASE, or VIEW ANY DEFINITION permissions.

To kill a process, it’s necessary to be a member of the sysadmin role.

To add the user to a server role enter:

sp_addsrvrolemember USER_NAME, SQLMonitor

More Information:

https://www.sqlshack.com/sql-server-activity-monitor/

https://www.codeproject.com/Tips/1103206/SQL-Server-Grant-Permission-to-Particular-Table

https://www.guru99.com/sql-server-create-user.html

https://sqlserverplanet.com/dba/using-sp_addrolemember

Product:

Microsoft SQL server 2016

Issue:

How log start and stop times of SP in your database?

Suggested solution:

Create a table to store time values, and create a SP that you call from other SP to update the table.

Create the log table:

CREATE TABLE [dbo].[_log_logged](
[LogID] [BIGINT] NULL,
[starttime] [DATETIME] NULL,
[endtime] [DATETIME] NULL,
[iscomplete] [INT] NULL,
[runstatus] [INT] NULL,
[durationInSeconds] [INT] NULL,
[whatProcess] [VARCHAR](100) NULL
) ON [PRIMARY]
GO

Create the SP to call to create log values:

SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO


CREATE PROCEDURE [dbo].[_logger] @LogID [INT], @StartTime [DATETIME],@EndTime [DATETIME], @WhatProcess [VARCHAR](100), @NewLogID [INT] OUT 
AS BEGIN 
SET NOCOUNT ON;
DECLARE @RunTimeSeconds INT,
@RunStatus INT,
@IsComplete INT,
@NewLogRowID INT,
@myDuration NUMERIC(20,10)

IF @LogID IS NULL
SET @LogID = 0

IF @LogID = 0
BEGIN 
SET @RunStatus = 1
SET @IsComplete = 0

SET @LogID = (SELECT ISNULL((MAX(LogID)),0) + 1 AS maxID FROM _log_logged)
INSERT INTO _log_logged(LogID
,StartTime
,runStatus
,IsComplete
,WhatProcess
)
SELECT @LogID,
@StartTime, 
@RunStatus,
@IsComplete,
@WhatProcess

END

ELSE IF @LogID != 0
BEGIN
SET @RunStatus = 0
SET @IsComplete = 1
UPDATE a
SET EndTime = @EndTime,
IsComplete = @IsComplete,
RunStatus = @RunStatus,
whatProcess = @WhatProcess,
DurationInSeconds= DATEDIFF(SECOND,@StartTime, @EndTime) 
FROM _log_logged a
WHERE a.LogID = @LogID

END

SET @NewLogID = @LogID
END
GO

Add below code to your SP, to enable them to log values to the above table.

-- =============================================
-- Author: 
-- Create date: 
-- Description: 
-- =============================================
CREATE PROCEDURE [dbo].[USP_ThisIsTheTest]
AS
BEGIN

SET NOCOUNT ON;
declare @StartTime datetime = GETDATE();
declare @EndTime datetime 
declare @logid int
DECLARE @NewLogID INT
DECLARE @whatProcessText VARCHAR(100) = 'Your name of the sp to be logged';


EXEC [dbo].[_logger] @LogID = 0
,@StartTime = @StartTime
,@EndTime = NULL
,@whatProcess = @whatProcessText
,@NewLogID = @NewLogID OUTPUT

-- =============================================
-- Here should your code be for the process to execute


WAITFOR DELAY '00:00:10.000'


-- =============================================
-- Log the end of the sp process with this call:

SET @EndTime = GETDATE()
EXEC [dbo].[_logger] @LogID = @NewLogID, @StartTime = @StartTime ,@EndTime = @EndTime ,@whatProcess = @whatProcessText ,@NewLogID = @NewLogID OUTPUT


END

Run the SP to test the log table.

The result can look like this:

More information:

SLEEP Command in Sql Server

https://www.mssqltips.com/sqlservertip/2003/simple-process-to-track-and-log-sql-server-stored-procedure-use/

https://www.sqlservercentral.com/articles/logging-and-error-handling-for-sql-stored-procedures

https://www.tech-recipes.com/database/sql-server-error-logging-and-reporting-within-a-stored-procedure/ 

Product:

Microsoft SQL server 2016

Problem:

Why should collation be an issue?

Solution:

Ensure that the SQL server and the database all have the same collation setting from the beginning – and try to not change it.

But some products demand a specific collation setting (like cognos) – that is equal to the SQL server.

To get around differences, between databases, in each select statement use collate;

More information:

https://kimconnect.com/latin1_general_ci_ai-vs-sql_latin1_general_cp1_ci_as/

The Windows collation can use an index while comparing unicode and non-unicode, such as nvarchar to varchar, with a slight performance cost. The SQL collation cannot use the index while comparing data in such scenarios.

Some characters that are treated as independent letters. For example, operator LIKE ‘%ß%’ will return that exact match in SQL collation, while Windows collation will also return LIKE ‘%ss%’ as the expanded character of ß to ss.

Mixing collations within the database can cause errors such as this: ‘Cannot resolve the collation conflict between “SQL_Latin1_General_CP1_CI_AS” and “Latin1_General_CI_AI” in the equal to operation.’

Collation can be specified in a statement to instruct the SQL engine to use such collation ad-hoc (e.g. SELECT * FROM SomeTable WHERE SomeField COLLATE SQL_Latin1_General_CP1_CI_AS = N’ßeta’)

https://docs.microsoft.com/en-us/sql/t-sql/statements/collations?view=sql-server-ver16

https://www.sqlshack.com/sql-server-collation-introduction-with-collate-sql-casting/

https://www.sqlshack.com/the-collate-sql-command-overview/

Product:

Microsoft SQL server 2016

Issue:

When you try to script out the database schema, to be able to create a empty database on other server, we get a error when we select to much. If you have more than 42000 views in a database you will get issues with the wizard.

The wizard – Generate Scripts – from task menu on the database, will give error if the database contain to many objects.

Can also be a an issue if you use an older versions of SSMS or that you have encrypted SP in the database.

SSMS can crash when you try to generate the script with to many objects selected.

Solution:

Manually script out all the views in a table.

select schema_name(v.schema_id) as schema_name,

       v.name as view_name,

       v.create_date as created,

       v.modify_date as last_modified,

       m.definition

from sys.views v

join sys.sql_modules m 

     on m.object_id = v.object_id

 order by schema_name,

          view_name;

Then copy the result from the table column to a new query window for the new database.

Change that each line (command) end with ;

Then run the new SQL statements, to recreate the views in the new database.

More information:

https://www.gethynellis.com/2020/07/ssms-error-generating-scripts.html

https://dataedo.com/kb/query/sql-server/list-views-with-their-scripts

https://dwhanalytics.wordpress.com/tag/generate-create-script-for-all-views-in-sql-server-database/

https://sqlblog.org/2011/11/03/the-case-against-information_schema-views