June 2004
Intermediate to advanced
848 pages
21h 28m
English
Content preview from Just Java™ 2
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Prepared Statements and Stored Procedures
Another way to boost performance is to precompile the SQL statement using what is termed a “Prepared statement.” That technique and the related one of “Stored procedures” are described in this section.
Prepared statements
A SQL statement is precompiled and stored in a PreparedStatement object. This object can then be used to efficiently execute this statement repeatedly, often changing some of the argument values at run-time. You get a PreparedStatement using a method of your Connection object. It's easiest to see with a code example:
PreparedStatement pstmt = conn.prepareStatement( "UPDATE EMPLOYEES SET SALARY = ? WHERE ID = ?");pstmt.setBigDecimal(1, 150000.00);pstmt.setInt(2, linden4303); ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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