February 2006
Intermediate to advanced
538 pages
18h 22m
English
book
IMS Connectivity in an On Demand Environment: A Practical Guide to IMS Connectivity
by Jouko Jantti, Jordi Guillaumes i Pons, Gen Sasaki, Egide Van Aerschot, Andres Wolf Andreoni
Content preview from IMS Connectivity in an On Demand Environment: A Practical Guide to IMS Connectivity
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416 IMS Connectivity in an On Demand Environment: A Practical Guide to IMS Connectivity
Before the updates are made, the IMS JDBC interface retrieves the rows that meet the
query conditions internally. Therefore, the same considerations as with the SELECT
statement need to be applied for the WHERE clause specification of the UPDATE
statement.
FROM clause
When using the FROM clause in SQL calls to IMS databases, apply the following
considerations:
Do not join tables in the FROM clause; list only one table, which comes from the
lowest-level segment.
Qualify the table in the FROM clause by using the PCB alias.
WHERE clause
IMS Java converts the WHERE clause in an SQL query to an SSA list when querying a
database. SSA rules restrict the type of ...
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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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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.