Explain Plan in Oracle

Explain Plan in Oracle


--====================================================
HOW to Generate EXPLAIN PLAN and
how to read and understand
--====================================================


explain plan into sys.plan_table$ for 
select * from ap_suppliers A

select * from table(dbms_xplan.display('sys.plan_table$'));

--====================================================

explain plan into sys.plan_table$ for 
select * from ap_supplier_sites_all

select * from table(dbms_xplan.display('sys.plan_table$'));

--====================================================

explain plan into sys.plan_table$ for 
select * from ap_suppliers A, ap_supplier_sites_all B
where A.VENDOR_ID = B.VENDOR_ID

select * from table(dbms_xplan.display('sys.plan_table$'));


--====================================================

explain plan into sys.plan_table$ for 
select * from ap_suppliers A, ap_supplier_sites_all B
where A.VENDOR_ID = B.VENDOR_ID and
org_id = 82

select * from table(dbms_xplan.display('sys.plan_table$'));

--====================================================

explain plan into sys.plan_table$ for 

select * from ap_suppliers A, ap_supplier_sites_all B
where A.VENDOR_ID = B.VENDOR_ID
and org_id = 82
and A.vendor_id = 1

select * from table(dbms_xplan.display('sys.plan_table$'));


--==================================================================
OUTPUT
--==================================================================
Plan hash value: 3410715412
 select * from ap_suppliers A
------------------------------------------------------------------------------------------
| Id  | Operation                 | Name         | Rows  | Bytes | Cost (%CPU)| Time     |
------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT          |              |   372K|    98M|  4037   (2)| 00:00:01 |
|   1 |  TABLE ACCESS STORAGE FULL| AP_SUPPLIERS |   372K|    98M|  4037   (2)| 00:00:01 |
------------------------------------------------------------------------------------------

Plan hash value: 3644361572
 select * from ap_supplier_sites_all
---------------------------------------------------------------------------------------------------
| Id  | Operation                 | Name                  | Rows  | Bytes | Cost (%CPU)| Time     |
---------------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT          |                       |   371K|   132M|  5046   (1)| 00:00:01 |
|   1 |  TABLE ACCESS STORAGE FULL| AP_SUPPLIER_SITES_ALL |   371K|   132M|  5046   (1)| 00:00:01 |
---------------------------------------------------------------------------------------------------

Plan hash value: 1704517579
 select * from ap_suppliers A, ap_supplier_sites_all B where A.VENDOR_ID = B.VENDOR_ID
------------------------------------------------------------------------------------------------------------
| Id  | Operation                  | Name                  | Rows  | Bytes |TempSpc| Cost (%CPU)| Time     |
------------------------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT           |                       |   371K|   231M|       | 20991   (1)| 00:00:01 |
|*  1 |  HASH JOIN                 |                       |   371K|   231M|   102M| 20991   (1)| 00:00:01 |
|   2 |   TABLE ACCESS STORAGE FULL| AP_SUPPLIERS          |   372K|    98M|       |  4037   (2)| 00:00:01 |
|   3 |   TABLE ACCESS STORAGE FULL| AP_SUPPLIER_SITES_ALL |   371K|   132M|       |  5046   (1)| 00:00:01 |
------------------------------------------------------------------------------------------------------------

Predicate Information (identified by operation id):
---------------------------------------------------

   1 - access("A"."VENDOR_ID"="B"."VENDOR_ID")
 
Plan hash value: 3540612086
 select * from ap_suppliers A, ap_supplier_sites_all B where A.VENDOR_ID = B.VENDOR_ID and  B.org_id = 82
-------------------------------------------------------------------------------------------------------------
| Id  | Operation                   | Name                  | Rows  | Bytes |TempSpc| Cost (%CPU)| Time     |
-------------------------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT            |                       | 61967 |    38M|       | 15310   (1)| 00:00:01 |
|*  1 |  HASH JOIN                  |                       | 61967 |    38M|    22M| 15310   (1)| 00:00:01 |
|   2 |   JOIN FILTER CREATE        | :BF0000               | 61967 |    22M|       |  5033   (1)| 00:00:01 |
|*  3 |    TABLE ACCESS STORAGE FULL| AP_SUPPLIER_SITES_ALL | 61967 |    22M|       |  5033   (1)| 00:00:01 |
|   4 |   JOIN FILTER USE           | :BF0000               |   372K|    98M|       |  4037   (2)| 00:00:01 |
|*  5 |    TABLE ACCESS STORAGE FULL| AP_SUPPLIERS          |   372K|    98M|       |  4037   (2)| 00:00:01 |
-------------------------------------------------------------------------------------------------------------

Predicate Information (identified by operation id):
---------------------------------------------------

   1 - access("A"."VENDOR_ID"="B"."VENDOR_ID")
   3 - storage("ORG_ID"=82)
       filter("ORG_ID"=82)
   5 - storage(SYS_OP_BLOOM_FILTER(:BF0000,"A"."VENDOR_ID"))
       filter(SYS_OP_BLOOM_FILTER(:BF0000,"A"."VENDOR_ID")) 

 
Plan hash value: 569357530
 select * from ap_suppliers A, ap_supplier_sites_all B where A.VENDOR_ID = B.VENDOR_ID  and org_id = 82 and A.vendor_id = 1
--------------------------------------------------------------------------------------------------------------
| Id  | Operation                            | Name                  | Rows  | Bytes | Cost (%CPU)| Time     |
--------------------------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT                     |                       |     1 |   653 |     6   (0)| 00:00:01 |
|   1 |  NESTED LOOPS                        |                       |     1 |   653 |     6   (0)| 00:00:01 |
|   2 |   TABLE ACCESS BY INDEX ROWID        | AP_SUPPLIERS          |     1 |   278 |     3   (0)| 00:00:01 |
|*  3 |    INDEX UNIQUE SCAN                 | AP_SUPPLIERS_U1       |     1 |       |     2   (0)| 00:00:01 |
|   4 |   TABLE ACCESS BY INDEX ROWID BATCHED| AP_SUPPLIER_SITES_ALL |     1 |   375 |     3   (0)| 00:00:01 |
|*  5 |    INDEX RANGE SCAN                  | AP_SUPPLIER_SITES_U2  |     1 |       |     2   (0)| 00:00:01 |
--------------------------------------------------------------------------------------------------------------

Predicate Information (identified by operation id):
---------------------------------------------------

   3 - access("A"."VENDOR_ID"=1)
   5 - access("B"."VENDOR_ID"=1 AND "ORG_ID"=82)
       filter("ORG_ID"=82)

Comments

Post a Comment

Popular posts from this blog

E-Text Report In Fusion | Types of E-Text reports

 WHAT IS Oracle Fusion E-Text Report ? An eText template is an RTF-based template that is used to generate text output  for Electronic Funds Transfer (EFT) and Electronic Data Interchange (EDI). How it generate the output for User or Bank? At runtime, BI Publisher applies this template to an input XML data file to create an output text file. that can be transmitted to a bank or other customer.  Because the output is intended for electronic communication, the eText templates must follow very specific format instructions for exact placement of data. Example :- Bank payment file , Bank MT940 File .. etc what is look and feel of this file ? Note:  There are two types of eText templates:  1. fixed-position based (EFT templates)  2. Delimiter-based (EDI templates) What IS EFT File? An EFT is an electronic transmission of financial data and payments to banks in a specific fixed-position format flat file (text). Link for download:- EFT :-  https://docs.google.com/document/d/14xAYceq2hx8WIy3Iux
Read more

Supplier API's

API's for Create Supplier, Create Supplier Site, Create Supplier Site Contacts --======================================================================= -------------Supplier API ------------- 1. First Write a CURSOR for Required Data 2. FND_GLOBAL.APPS_INITIALIZE 3. Pass required Values in Proper way. 4. API :- For Supplier Create (pos_vendor_pub_pkg.create_vendor)    API :- For Supplier Site Create (pos_vendor_pub_pkg.create_vendor_site)    API :- For Supplier Create Contact (ap_vendor_pub_pkg.create_vendor_contact) 5. Run API 6. Checking ------------------------------  Query For APPS_INITIALIZE   --------------------------------------------- select 'USER_ID' REMARKS , user_name NAME, user_id ID from fnd_user where user_name like 'DEVELOPER' union select 'RESPONSIBILITY_ID' NAME, responsibility_name , RESPONSIBILITY_ID from fnd_responsibility_tl where responsibility_name like 'Payables Manager' union s
Read more

How to pass default Parameter in cursor

--==================================================== --Parameterized Cursors /* Syntax of Parameterized Cursor :- CURSOR cur _ name (parameter list may be one, two, or more or Default ) IS SELECT statement; OPEN cur _ name (Parameter value) */ EMPNO ENAME HIREDATE DOB GENDER SAL DEPTNO COMM 1000 Sachin 11-Sep-85 01-Mar-20 M 25000 20 1002 Rena 01-Aug-82 11-Mar-20 F 125000 20 1008 Sonu 11-Sep-85 01-Mar-20 M 2500 10 100 1003 Chavi 25-Mar-81 15-Feb-20 F 5000 20 1006 Ravi 11-Sep-89 01-Mar-19 M 2500 10 100 1005 Vinod 18-Sep-86 01-Mar-20
Read more