Sql server alter table add if not exists

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  http://sqlmag.com/sql-server/passing-table-variable-ssis
In the Control Flow tab Right-click the Connections Manager section of the Control Flow tab and add a new ADO.NET connection to the AdventureWorks database. How? It seems that this new format of the web site misses a lot of links and is way harder to navigate than the previous one! Newer doesn't always mean better..

  http://dba.stackexchange.com/questions/16385/whats-the-difference-between-a-temp-table-and-table-variable-in-sql-server
The compile time table cardinality is stored in the plan and if the statement is executed again with the same cardinality (either due to flow of control statements or reuse of a cached plan) no recompile occurs. As a side bar, recompiles with Temp Tables can occur with the addition of data and whether the DDL for the temp table is interlaced with the DML or not

  http://sqlmag.com/t-sql/adding-identity-property-existing-column
ALTER TABLE attempt failed, this explaination came through perfectly, tatero Log In or Register to post comments Preeti (not verified) on May 13, 2004 This is a very systematic solution given to a problem ususlly faced while migrating from Oracle to SQL 2000. To demonstrate this T-SQL activity, run the code that Listing 1 shows to create and populate the Orders2 and OrderDetails2 tables in the Northwind database

  http://blog.sqlauthority.com/2008/03/19/sql-server-add-column-with-default-column-constraint-to-table/
ALTER TABLE only allows columns to be added that can contain nulls, or have a DEFAULT definition specified, or the column being added is an identity or timestamp column, or alternatively if none of the previous conditions are satisfied the table must be empty to allow addition of this column. Fill in your details below or click an icon to log in: Email (required) (Address never made public) Name (required) Website You are commenting using your WordPress.com account

  http://dba.stackexchange.com/questions/66741/why-cant-i-use-a-case-statement-to-see-if-a-column-exists-and-not-select-from-i
I prefer to use the system for this and simply get a count because you can assign the column count to a variable at the top of a query and then choose to proceed or not based on that. The trick is not to use the table alias for such columns (which is a frowned-upon practice in most situations, but in this case omitting the table alias helps you to resolve the issue)

SQL Server Forums - Alter table - Add new column in between..

  http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=58912
Make sure you run it in pieces.Here is the code: USE Northwind GO PRINT 'This script attempts to reorder a column by updating the system tables themselves. For any column, it is the number of columns in that table with colid's not greater than its own colid.I use similar logic all the time to calculate rankings, with the rank of a given record being 1 + the number of higher-valued records

  http://blog.sqlauthority.com/2010/02/21/sql-server-if-existsselect-null-from-table-vs-if-existsselect-1-from-table/
Uh! I almost felt like going back in time some ten years when I was writing kernel drivers for Windows :) This is excellent participation from experts like Marko and Brian. Is it better write a function Drop table and and pass table name as parameter to do this? In my opinion, I think it is expensive to go to a function from a stored procedure just to drop a table