May 2000
Intermediate to advanced
594 pages
11h 32m
English
Content preview from Oracle PL/SQL Programming: A Developer's Workbook
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Chapter 30. PL/SQL for DBAs
This chapter, meant specifically for DBAs, tests your ability to use the base PL/SQL language, as well as an assortment of built-in packages, to simplify and automate a variety of database maintenance tasks.
Beginner
30-1. | How can database parameters (from the INIT.ORA file) be examined from within PL/SQL? |
30-2. | Write a function that accepts the name of a database parameter and returns its value. |
30-3. | Database administrators usually have a collection of many scripts they’ve written. Unfortunately, each new version of Oracle wreaks havoc with these scripts. One solution is to have a set of scripts for each version of the database. Another solution is to build a database version check into each script. Oracle8 includes a built-in to determine the database version for you. What is the name of the utility? Use it in an example. |
30-4. | Suppose you need to write a script that depends on using a particular version of Oracle (you’ll do one thing for Oracle7 and another for Oracle8). Write a procedure to display the version of the database for either Oracle7 or Oracle8. |
30-5. | What Oracle built-in package maintains the SHARED_POOL portion of the System Global Area (SGA)? |
30-6. | What command do you use to pin the DBMS_SHARED_POOL package in the shared pool? |
30-7. | What attribute of PL/SQL packages allows them to be written by a DBA (accessing DBA objects) and then to be successfully executed by non-DBAs (with no access to DBA objects)? |
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