Updating tables in a database dating a selfish self centered man

Triggers degrade [email protected] If doing over a few days then what I described in my article still works.

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Views are saved SELECT statements that allow you to operate on the results that are returned from them.They can be used to provide row- or column-level access to data, to wrap up complex joins, to perform complex aggregate queries, and to otherwise customize the display of data. In this chapter, learn how to define, create, and modify views, and how to perform index analysis and optimize performance in SQL Server. The biggest problem is that just when you get used to accepting a limitation, Microsoft comes up with an amazing, new feature that overcomes it!Unlike stored procedures (which also support parameters), these parameterized functions can be updateable, as you'll see later in this chapter.The SQL-92 standard also mandates that views cannot be sorted with an values with a view; to support that, it also supports sorting.If no default value for the corresponding column has been specified, then the database sets the column to null.

The returning clause retrieves the rows affected by a DML statement. I want to update the values of some fields in marc and mvke tables by changing the field values in one screen.I am using BAPI_MATERIAL_SAVEDATA function module for updating the database tables.2 - Copy all data into a new table with the data type change in chunks as before, verify data is completed, drop the old table, rename the new table to the old and apply indexes. I've updated 100 million records for other tables really well with option 1.3 - Import all data from another data source like a flat file to a new table with the data type change using BULK INSERT and MERGE SP's, basically like option 2 with having 2 duplicate tables, verify data, drop old to replace with new table and apply indexes. The bigger the table, the harder option 1 becomes due to the time duration of updating.The triggers in views are covered later in this chapter.