If you want to update the data in a table by getting information from another table.  You can acheive this by using an update inner join query.

For example if i wanted to update the phone numbers in my table using a list of contacts from a secondary table, the UPDATE INNER JOIN Query would be like the one below:

UPDATE c
SET c.PhoneNumber = c2.PhoneNumber
FROM Contact AS c
INNER JOIN ContactTable2 c2 on c.Id = c2.Id
WHERE DateCreated > GETDATE()-60

I have come across this error when using a Indentity In a stored procedure.

In a stored procedure you need to define the scope indentity in a variable before you can use it in a select statement

So instead of

SELECT * FROM table WHERE id = SCOPE_IDENTITY()

You need to use 

 

SET @var = SCOPE_IDENTITY();

SELECT * FROM table WHERE id = @var

 

 @@IDENTITY  will return the last indentity across the whole database whilst SCOPE_IDENTITY() will return only the indentity related to the scope of the operation

This is an example of a connection string for ASP (JScript and VBScript)

var connString = "Provider=sqloledb; Network Library=DBMSSOCN; Data Source=10.1.1.1;User ID=exampleUser; Password=examplePassword;Connection Timeout=90;Application Name=MyApplication;"

 

I came across the following errors in my ASP Code when my connection string was not setup correctly.

 

Microsoft OLE DB Provider for SQL Server error '80040e4d'

Invalid authorization specification

The problem was my original connection string did not have the userid and password credentials

 

Invalid connection string attribute

Invalid Data in either Password and/or Username or Initial Catalog etc

To get the column names of a table in MSSQL 

SELECT * FROM INFORMATION_SCHEMA.Columns WHERE TABLE_NAME = 'TableName'

This is basically the MSSQL equivalent for The MySQL Command DESCRIBE TableName which displays the table details

 

I often use this so i can copy and paste into another query etc.

SELECT Column_Name + ',' FROM INFORMATION_SCHEMA.Columns WHERE TABLE_NAME = 'TableName'

then i have the commas for use in any INSERT or SELECT etc

 

 

USING A CUSROR

DECLARE @FirstName varchar(255), @LastName varchar(255)

DECLARE user_cursor CURSOR FOR

SELECT FirstName,LastName FROM Users

OPEN user_cursor

FETCH NEXT FROM user_cursor

INTO  @FirstName, @LastName

WHILE @@FETCH_STATUS = 0

BEGIN

print @FirstName

FETCH NEXT FROM user_cursor INTO  @FirstName, @LastName

END

CLOSE user_cursor

DEALLOCATE user_cursor

 

USING A TEMPORARY TABLE/VARIABLE

SET NOCOUNT ON
DECLARE @Users TABLE (
 RowID int IDENTITY(1, 1),
 FirstName varchar(255),
 LastName varchar(255)
)

DECLARE @NumberOfRecords int, @RowCount int
DECLARE @FirstName varchar(255)

INSERT INTO @Users(FirstName,LastName)
SELECT FirstName,LastName FROM Users

SET @NumberOfRecords = @@ROWCOUNT
SET @RowCount = 1


WHILE @RowCount <= @NumberOfRecords
BEGIN        

  -- Do Operations

SET @RowCount = @RowCount + 1
END