An organization's cultural norms and structure influence how projects are performed.
Project phases are subdivisions within a project created to effective management and control of a specific deliverable within the projects.
Project management knowledge areas describe key project management competencies. There are four core knowledge areas, four facilitating knowledge areas and integration management.
NVL function can be used to substitute a value when null in encountered. It has the following syntax:
A project life cycle is a collection of phases in the project. Phases are subdivision of the project. Projects often have milestones and deliverables within the project which occur in phases.
If you want to list tables in MySQL, you simply type the following command:
Oracle does not provide such a short cut. You have to type the following command:
The most commonly used set operators in Oracle are:
Decode function has the same functionality as an IF-THEN-ELSE statement. It is present in Oracle 9i and above. It has the syntax
decode(column/expression, value, substitute, default value)
There are two ways of adding a leading dollar sign to numbers in Oracle.
The following three operators have the identical meaning:
!=, ^=, <>
select name from worker where gender <> 'male';
Another way to test for inequality it to use "not in"
MySQL and Postgres support the limit clause which limits the number of entries returned when a query is executed:
select * from member limit 5
Collection of articles about Oracle db
This sections shows how to setup an environment to setup and run PL/SQL. For PL/SQL, you need to download two pieces of software freely available from Oracle.
PL/SQL variables have type and scope. The have the following syntax:
name datatype [NOT NULL := value];
not null and value are optional. All statements end with a semicolon (;).
PL/SQL blocks are made up of PL/SQL and SQL statements.