Monday, 20 July 2015

T-sql alter table set column to not null

Top sites by search query "t-sql alter table set column to not null"

  http://sqlmag.com/t-sql/using-t-sql-generate-resultset-tree-form
(Although the schema provides unlimited nesting levels, SQL Server imposes a limit of 32 levels for nested stored procedures.) Of the three root-level activities, or nodes, A1 has no subactivities, A2 contains three subactivities, and A3 has two subactivities. The second one use a function that return the concatenation of parents and child's key in reverse order (first parent, second, third, ..., child's key) to assure the order of the result

  http://raresql.com/2014/03/16/sql-server-how-to-alter-an-existing-computed-column-in-a-table/
METHOD 1 : USING T-SQL In this method, we need to first drop the computed column and then add it as a new column to accommodate the altered computed column in any table. But hang on a second, instead of pressing the save button, press the generate script button to see what changes SSMS will implement in case of pressing save button

  http://blog.sqlauthority.com/2008/12/20/sql-server-change-collation-of-database-column-t-sql-script/
I changed the database collation to the correct one and when I ran the process it created a new database and assigned the default (correct) collation to all the columns. If you have any good idea about this subject, I encourage you to write down good small post about the subject and I publish as blog post with due credit to you along with your contact info

  http://blog.sqlauthority.com/2009/10/19/sql-server-change-collation-of-database-column-t-sql-script-consolidating-collations-extention-script/
The orders in which these are executed are as follows: Table Functions Unique Constraints Check Constraints Indexes You must also edit this script to use your desired collation. Download all scripts and explanation here About Collation Consolidation At some time in your DBA career, you may find yourself in a position when you sit back and realize that your database collations have somehow run amuck, or are faced with the ever annoying CANNOT RESOLVE COLLATION message when trying to join data of varying collation settings

Geeks With Blogs


  http://geekswithblogs.net/LifeLongTechie/archive/2011/03/02/instead-of-alter-table-column-to-turn-identity-on-and.aspx
SSIS won (very specific Req) Big Data 7 V OLEDB going away? Microsoft claims to be deprecating it in favor of ODBC Simple solution now to a problem from 8 years ago

  http://www.blogcoward.com/archive/2005/05/09/234.aspx
For some reason this post came up top in Google when I was trying to find out why my t-sql syntax was not quite right for adding multiple columns to an already existing table using a single alter statement.BTW - Tilt's response to Darrick is priceless. The problem statement is this: Can you do ALTER TABLE X ALTER COLUMN Y, Z, Qwithout it being 3 separate operations.The answer is no.Only a maniac would go in and start hacking the sys tables

sql server - T SQL Table Valued Function to Split a Column on commas - Database Administrators Stack Exchange


  http://dba.stackexchange.com/questions/21078/t-sql-table-valued-function-to-split-a-column-on-commas
This is getting really disheartening especially since there are no built in split functions on MSSQL server (WHY WHY WHY?!) and all the similar functions I've found on the web are absolute trash or simply irrelevant to what I'm trying to do. This will almost certainly outperform any of the solutions above, especially if you are building a comma-separated string in your app specifically so that your stored procedure can call a TVP to split it apart again

ADD A COLUMN TO A TABLE IN T-SQL


  http://www.sqlservercentral.com/Forums/Topic662439-323-1.aspx
Also, while "IF" and "THEN" are reserved words in SSCE (for compatibility with the rest of the SQL world), they are not defined in the grammar available for SSCE

alter table - How to add a column in TSQL after a specific column? - Stack Overflow


  http://stackoverflow.com/questions/7933204/how-to-add-a-column-in-tsql-after-a-specific-column
Luckily, the order of the columns doesn't matter at all! Watch as I magically reorder your columns: SELECT ID, Newfield, FieldA, FieldB FROM MyTable Also this has been asked about a bazillion times before. SQL Management studio pulls all your data into a temp table, drops the table, recreates it with columns in the right order, and puts the temp table data back in there

  http://sqlstudies.com/2013/10/30/adding-a-column-to-a-table-with-a-default-null-vs-not-null/
This -- Trying to add a NOT NULL column without a default ALTER TABLE DefaultTest ADD NotNull2 char(1) NOT NULL GO Returns an error of Msg 4901, Level 16, State 1, Line 1 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

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