September 2004
Beginner to intermediate
388 pages
6h 34m
English
Content preview from PROC SQL: Beyond the Basics Using SAS®
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5.5. Deleting Rows in a Table
In the world of data management, the ability to delete unwanted rows of data from a table is as important as being able to populate a table with data. In fact, data management activities would be severely hampered without the ability to delete rows of data. The DELETE statement and an optional WHERE clause can remove one or more unwanted rows from a table, depending on what is specified in the WHERE clause.
5.5.1. Deleting a Single Row in a Table
The DELETE statement can be specified to remove a single row of data by constructing an explicit WHERE clause on a unique value. The construction of a WHERE clause to satisfy this form of row deletion may require a complex logic construct. So be sure to test the expression ...
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