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Page History: Schema Change Scripts - SQL Server

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Page Revision: Thu, Nov 01, 2012, 9:32 AM


Sequence of Statements

  • Drop foreign keys being created on existing tables
  • Drop tables being created
  • Drop columns being created
  • Drop/recreate schema
  • Create/alter tables
  • Create primary keys
  • Create foreign keys
  • Populate lookup tables

Statement Syntax

Drop Column

if COL_LENGTH('TableName','ColumnName') is not null
    alter table dbo.TableName drop column ColumnName

Add Columns

alter table dbo.TableName ADD
     ColumnName  int      not null identity(1,1)
    ,ColumnName2 date     not null

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