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Execute SQL on Multiple Tables/Columns - New Feature in SQL Server 2000


In this latest article, Raghavendra introduces us to a feature available to us in SQL Server, allowing us to execute SQL statements on multiple tables and columns.

Author Info:
By: Raghavendra Narayana
Rating: 4 stars4 stars4 stars4 stars4 stars / 53
September 25, 2003
TABLE OF CONTENTS:
  1. · Execute SQL on Multiple Tables/Columns - New Feature in SQL Server 2000
  2. · Script
  3. · Parameters
  4. · Examples
  5. · Expansion
  6. · Conclusion

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Execute SQL on Multiple Tables/Columns - New Feature in SQL Server 2000
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The base idea of this article is to leverage the running of SQL Statements, Stored Procedures, User Defined Functions or a set of SQL Statements on every/required tables and on every/required columns in the Database. 

You may have had a requirement in which you needed to add/edit/delete/search data in column(s) on more than one table using a single SQL statement; perhaps you ended up writing a procedure/function for achieving just that.  Now you can be equipped with the SP_execSQLonDB stored procedure that runs the SQL Statement(s)/Procedure/Function on every finding of required tables/columns in the Database.

Algorithm

  • Accept Table name filter, Column name filter, SQL, Include_NTI (i.e. whether to include Ntext, Text, Image data types during stored procedure execution, usually these data types give errors during data comparison) parameters.
  • Check whether to include TEXT, NTEXT and IMAGE data types.  Check whether to include Table and column filters.
  • Fetch a Result Set that contains the Table and Column names with associated owner name by querying on SQL SERVER System Tables based on the input parameters.
  • Loop through the Result Set
    • Execute the supplied SQL for each row in the result set
Next: Script >>

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