Meaning about PL/SQL

HI All,
I have some question about PL/SQL Collection like Associative Arrarys is like
Single Dimension
Unbounded
Homogeneous
Can I know the meaning for above terms I may think about Unbounded and Bounded it's like
Associative Arrays have much space at runtime where
Arrays are bounded like CHAR data type I will have limited space correct me if I am wrong. Give some example for between understand.

1007945 wrote:
HI All,
I have some question about PL/SQL Collection like Associative Arrarys is like
Single Dimension
Unbounded
Homogeneous
Can I know the meaning for above terms I may think about Unbounded and Bounded it's like
Associative Arrays have much space at runtime where
Arrays are bounded like CHAR data type I will have limited space correct me if I am wrong. Give some example for between understand.
An associative array is a name-value pair. And is of very little use in 99% of general PL/SQL programming.
Such arrays are one dimensional. You reference the array with a single index value - unlike a 2D (standard non-associative) array where each cell in the array is referenced by an index pair (x,y) for example.
Associative arrays are also homogeneous - it only supports native scalar types (e.g. string, number, date).
And associative arrays are unbounded. You do not place a limit with the definition of the type, on the number of cells it can hold (unlike a VArray type definition for example).
Associative arrays are largely useless in the PL/SQL environment. It is a specialised form of an array. And within PL/SQL and database context, dealing with name-value pairs in a non-scalable program language structure (as oppose to a SQL based table structure) raises all kinds of questions.
Which is also why the majority of PL/SQL code and samples and examples using associative arrays are wrong.

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Where do I use PL/SQL procedures for example? Do I put the calls to them in java methods?

There is no simple answer to such a simple question.
When I analyze your question I think that you are struggeling with an application architecture matter. Basically, the first answer that springs to mind would be:
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Message was edited by:
Toine

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