For Oracle experts that are going after the Oracle PL/SQL Developer Qualified Associate certification, there are two tests that will certainly satisfy the PL/SQL requirement: “1Z0-147: Program with PL/SQL” and also the newer variation: “1Z0-144: Oracle Database 11g: Program with PL/SQL”. There is a fair quantity of complication among candidates looking for accreditation over whether they ought to take one test, or the various other, or both. The intent of this short article is to help discuss the two tests, their similarities and also distinctions, and why you might take one over the other.
One point needs to be made clear from the start: there is never ever a factor to take both examinations. Unlike the DBA track, Oracle PL/SQL accreditations are not linked to the data source launch. You do not come to be licensed in release X of Oracle PL/SQL and after that have a need to take upgrade exams. Because either of these two tests will certainly satisfy the OCA-level PL/SQL requirement, passing SQL London the other would offer no qualification advantage. That claimed, you need to choose which of both tests to pursue. The 1Z0-147 examination is a number of years older than 1Z0-144. Unless there is a certain factor that taking the older examination will benefit you, your much better option is to choose the 11G variation of the examination. Till Oracle retires 1Z0-147, nonetheless, the option is yours.
The two examinations have a large amount of commonness in between them. This makes good sense as they are for essentially the same topic. What is unexpected is the number of differences that exist between the two. 1Z0-144 is not just a remake of the earlier test with brand-new PL/SQL attributes from versions 10G as well as 11G added. There is a completely different feeling to the examination and also the topics covered. There are a number of sections that do not exist in 1Z0-147 which cover functions that did not exist in 9i. However, the majority of the brand-new sections in 1Z0-144 cover core topics of PL/SQL programs that arguably must have been in the earlier test. A few of the types of info covered in 1Z0-144 however not 1Z0-147 consist of:
The advantages of utilizing PL/SQL
Setting fundamentals, consisting of variables, conventions, attributes, and lexical systems
Use SQL features in PL/SQL
Implicit vs. explicit information conversion
Use tags, imprint, and also whitespace to make more readable code
The use of DML in PL/SQL
Using control structures and also Loops
Making use of arrows and also arrow attributes
Using the FOR UPDATE stipulation
Exception Handling
PL/SQL Style factors to consider
Compound information kinds
Self-governing transactions
BULK SQL operations
PL/SQL compiler modifications
The variety of subjects covered in 1Z0-147 that are not covered in 1Z0-144 is a lot smaller. However, the very first three are unexpected taking into consideration the noticable shift to PL/SQL basics in the 11G test:
Benefits required to execute procedures
Criterion modes and DEFAULT values
Specification passing approaches– by reference vs. by worth
A much larger focus on triggers
More references to client-side PL/SQL (1Z0-144 mostly disregards client-side).
A lot more focus on PL/SQL reliances and also invalidations.
Large things as well as making use of the DBMS_LOB bundle.
If you end up pursuing 1Z0-147, make certain to study using the Oracle 9i paperwork. Abilities that were included in PL/SQL in 10G or 11G will not get on that examination. Having actually investigated the subjects for both examinations, I think about 1Z0-144 to be the far better test from the viewpoint of the information evaluated. The subject is a far better mix of what is important for an entry-level PL/SQL programmer to know. New developers studying for this exam will bring out an extra rounded as well as total knowledge of PL/SQL fundamentals. Whichever test you seek, make certain to examine each of the test topics listed on the Oracle Education and learning site prior to setting up the examination. Good luck on the test.