Indexing Associative Arrays : Associative Arrays « Collections « Oracle PL/SQL Tutorial

Oracle PL/SQL Tutorial
1. Introduction
2. Query Select
3. Set
4. Insert Update Delete
5. Sequences
6. Table
7. Table Joins
8. View
9. Index
10. SQL Data Types
11. Character String Functions
12. Aggregate Functions
13. Date Timestamp Functions
14. Numerical Math Functions
15. Conversion Functions
16. Analytical Functions
17. Miscellaneous Functions
18. Regular Expressions Functions
19. Statistical Functions
20. Linear Regression Functions
21. PL SQL Data Types
22. PL SQL Statements
23. PL SQL Operators
24. PL SQL Programming
25. Cursor
26. Collections
27. Function Procedure Packages
28. Trigger
29. SQL PLUS Session Environment
30. System Tables Data Dictionary
31. System Packages
32. Object Oriented
33. XML
34. Large Objects
35. Transaction
36. User Privilege
Java
Java Tutorial
Java Source Code / Java Documentation
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Oracle PL/SQL Tutorial » Collections » Associative Arrays 
26. 7. 23. Indexing Associative Arrays

Generate a list of employees grouped by two parameters

SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /

Table created.

SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2               values ('01','Jason',    'Martin',  to_date('19960725','YYYYMMDD'), to_date('20060725','YYYYMMDD'), 1234.56'Toronto',  'Programmer')
  3  /

row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values('02','Alison',   'Mathews', to_date('19760321','YYYYMMDD'), to_date('19860221','YYYYMMDD'), 6661.78'Vancouver','Tester')
  3  /

row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values('03','James',    'Smith',   to_date('19781212','YYYYMMDD'), to_date('19900315','YYYYMMDD'), 6544.78'Vancouver','Tester')
  3  /

row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values('04','Celia',    'Rice',    to_date('19821024','YYYYMMDD'), to_date('19990421','YYYYMMDD'), 2344.78'Vancouver','Manager')
  3  /

row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values('05','Robert',   'Black',   to_date('19840115','YYYYMMDD'), to_date('19980808','YYYYMMDD'), 2334.78'Vancouver','Tester')
  3  /

row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values('06','Linda',    'Green',   to_date('19870730','YYYYMMDD'), to_date('19960104','YYYYMMDD'), 4322.78,'New York',  'Tester')
  3  /

row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values('07','David',    'Larry',   to_date('19901231','YYYYMMDD'), to_date('19980212','YYYYMMDD'), 7897.78,'New York',  'Manager')
  3  /

row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values('08','James',    'Cat',     to_date('19960917','YYYYMMDD'), to_date('20020415','YYYYMMDD'), 1232.78,'Vancouver', 'Tester')
  3  /

row created.

SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select from Employee
  2  /

ID   FIRST_NAME           LAST_NAME            START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- -------------------- -------------------- --------- --------- ---------- ---------- ---------------
01   Jason                Martin               25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison               Mathews              21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James                Smith                12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia                Rice                 24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert               Black                15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda                Green                30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David                Larry                31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James                Cat                  17-SEP-96 15-APR-02    1232.78 Vancouver  Tester

rows selected.

SQL>
SQL>
SQL>
SQL> declare
  2      type list_aa is table of VARCHAR2(2000index by VARCHAR2(256);
  3      v_list_aa list_aa;
  4
  5      cursor c_dept is select id from employee;
  6      cursor c_emp is select first_name, id,to_char(start_Date,'q'q_nr from employee;
  7      v_subscript_tx VARCHAR2(256);
  8  begin
  9    for r_dept in c_dept loop
 10         v_list_aa(r_dept.id||'|1'):='Q1 Dept#' ||r_dept.id||':';
 11         v_list_aa(r_dept.id||'|2'):='Q2 Dept#' ||r_dept.id||':';
 12         v_list_aa(r_dept.id||'|3'):='Q3 Dept#' ||r_dept.id||':';
 13         v_list_aa(r_dept.id||'|4'):='Q4 Dept#' ||r_dept.id||':';
 14    end loop;
 15
 16   for r_emp in c_emp loop
 17     v_list_aa(r_emp.id||'|'||r_emp.q_nr):= v_list_aa(r_emp.id||'|'||r_emp.q_nr)|| ' '||r_emp.first_Name;
 18   end loop;
 19
 20   v_subscript_tx:=v_list_aa.first;
 21   loop
 22      DBMS_OUTPUT.put_line(v_list_aa(v_subscript_tx));
 23      v_subscript_tx:=v_list_aa.next(v_subscript_tx);
 24      exit when v_subscript_tx is null;
 25   end loop;
 26  end;
 27  /
Q1 Dept#01:
Q2 Dept#01:
Q3 Dept#01: Jason
Q4 Dept#01:
Q1 Dept#02: Alison
Q2 Dept#02:
Q3 Dept#02:
Q4 Dept#02:
Q1 Dept#03:
Q2 Dept#03:
Q3 Dept#03:
Q4 Dept#03: James
Q1 Dept#04:
Q2 Dept#04:
Q3 Dept#04:
Q4 Dept#04: Celia
Q1 Dept#05: Robert
Q2 Dept#05:
Q3 Dept#05:
Q4 Dept#05:
Q1 Dept#06:
Q2 Dept#06:
Q3 Dept#06: Linda
Q4 Dept#06:
Q1 Dept#07:
Q2 Dept#07:
Q3 Dept#07:
Q4 Dept#07: David
Q1 Dept#08:
Q2 Dept#08:
Q3 Dept#08: James
Q4 Dept#08:

PL/SQL procedure successfully completed.

SQL>
SQL>
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /

Table dropped.

SQL>
26. 7. Associative Arrays
26. 7. 1. Associative Arrays demo
26. 7. 2. Associative arrays (index-by tables)
26. 7. 3. PL/SQL Table
26. 7. 4. Index by string
26. 7. 5. Nested Table with Table row elements inside
26. 7. 6. Assign value to PL/SQL table
26. 7. 7. TABLE.Exist
26. 7. 8. Clear the salaries table by assigning the empty version to it
26. 7. 9. Place some values into the salaries table
26. 7. 10. PL/SQL table of cursor
26. 7. 11. Select data into PL/SQL table of cursor
26. 7. 12. Use For loop to output data in a PL/SQL table of cursor
26. 7. 13. Use for all loop to loop through the PL/SQL table
26. 7. 14. Change PL/SQL table element by index
26. 7. 15. Insert data in PL/SQL table to a real table
26. 7. 16. The COUNT Table Attribute
26. 7. 17. Uses the COUNT method to display the number of rows contained in an index-by table
26. 7. 18. The DELETE Table Attribute
26. 7. 19. The EXISTS Table Attribute
26. 7. 20. FIRST and LAST Table Attributes
26. 7. 21. NEXT and PRIOR Table Attributes
26. 7. 22. Using INDEX BY BINARY_INTEGER
26. 7. 23. Indexing Associative Arrays
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.