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VisualAge for Java Version 3: Persistence Builder with GUIs, Servlets, and Java Server Pages
book

VisualAge for Java Version 3: Persistence Builder with GUIs, Servlets, and Java Server Pages

by Ueli Wahli, Greg Behrend, Daniel Peter
March 2000
Beginner to intermediate content levelBeginner to intermediate
472 pages
11h 17m
English
IBM Redbooks
Content preview from VisualAge for Java Version 3: Persistence Builder with GUIs, Servlets, and Java Server Pages
Chapter 12. Custom Queries 223
The methods that are created in the query pool class depend largely on the
type of query you require. In this chapter, we consider two types of queries:
Fixed Queries. These are queries with no variable arguments. Consider
a classic SELECT query: SELECT * FROM TABLEXYZ. In this query
thereisnopartthatmayvaryeachtimethequeryisused.
Variable Queries. These are queries that contain variable arguments.
We might SELECT from a table based on a primary key in an ID column:
SELECT * FROM TABLEXYZ WHERE ID = 123. In an application, we
would like the ability to substitute 123 with another value the next time
we execute the
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ISBN: 0738415820Purchase bookAdditional Material