explain the analysis analyzed, plan implementation, the hash value code

whts the hash value, code analysis, plan to run?
can we see the hash value?

The analysis is the first step in the treatment of any statement in an Oracle database. Statements are broken down into its components and so DML or DDL statement type is determined and different controls are carried out on this subject. A statement must be evaluated and validated before execution. Oracle evaluates statements for syntax, the validation of objects and the privileges assigned to the user.

Oracle hash value will check privileges for any SQL statement, and then assigns a number called the hash value SQL for the SQL statement to check whether or not this statement exists in memory

The statement execution plan, will select the best methods to access the SQL statement

http://www.articles.freemegazone.com/Oracle-parsing.php

Tags: Database

Similar Questions

Plan of the hash value for two queries!
Hello
DB: Oracle 11g (11.2.0.3.0)
OS: RHEL 5

I have two question:

1. can two queries have the same hash value of the plan? I mean I have here are two queries:

SELECT /+ NO_MERGE * / MIN (payor.next_review_date). *
* Payer from *.
* WHERE payor.review_complete = 0 *.
* AND payor.closing_date IS NULL *.
* AND payor.patient_key = 10; *

and

SELECT MIN (payor.next_review_date)
* Payer from *.
* WHERE payor.review_complete = 0 *.
* AND payor.closing_date IS NULL *.
* AND payor.patient_key = 10; *

When I tried to examine the execution plan for the two motions, the hash value of the plan remains the same. This means that implementation plan for both queries are same? If so, then how Oracle includes or changes to the execution plan based on hint. If not, then what hash value of the plan represents?

2. If the plan with suspicion, and without suspicion is identical except for a given query except the number of lines and bytes. Do you mean this query with fewer lines and scanned bytes is better?

Thanks in advance
-Onkar
>
1. can two queries have the same hash value of the plan?
>
Yes - as already said - but it's not just because of tips.

Here is the example code that I use to show that Oracle does NOT simply use a text version of the query that you propose and compute a hash of it.
These two queries are radically different but have the same hash value; Oracle are not different at all.
```
set serveroutput on
set autotrace traceonly
select * from DEPT A, EMP B
where A.DEPTNO=B.DEPTNO

SQL> select * from DEPT A, EMP B
  2  where A.DEPTNO=B.DEPTNO
  3  / 

14 rows selected.

Execution Plan
----------------------------------------------------------
Plan hash value: 844388907

select * from
(select * from DEPT) A, (select * from EMP) B
WHERE A.DEPTNO = B.DEPTNO

SQL> select * from
  2  (select * from DEPT) A, (select * from EMP) B
  3  WHERE A.DEPTNO = B.DEPTNO
  4  / 

14 rows selected.

Execution Plan
----------------------------------------------------------
Plan hash value: 844388907
```

that will generate the hash value
Hello world

I need some information about the hash value is generated for each new SQl

I think that PGA will generate a hash value every time

Thanks in advance
Shareef
912856 wrote:
Hello world

I need some information about the hash value is generated for each new SQl

I think that PGA will generate a hash value every time

PGA 'would lead to' value? Is it not that the hash values are generated by the hash functions ? If you want information on the analysis of works, please read.
http://docs.Oracle.com/CD/E11882_01/server.112/e16638/optimops.htm#i21299

And,
http://docs.Oracle.com/CD/E11882_01/server.112/e25789/sqllangu.htm#CNCPT1740

Aman...

Windows Phone, recovery tool is not installed in windows 7, says the hash value is missing

Windows Phone, recovery tool is not installed in windows 7, says the hash value is missing. Whenever I try to install the windows phone recovery tool it does not install error

0 x 80070003, system can't find the path or 0x800b0101, hash value is missing... Please help

Hi Imran,

Thanks for posting the query on Microsoft Community.

I'm sorry to know that you can not install Windows Phone on Windows 7 recovery tool. The problem could be due to system files or software problem.

Try to solve the problem by following the methods below.

Method 1

Try to run the patch from the link below and check if it helps.

Error code 0 x 80070003 when a preference of group policy is applied on Windows 7 clients:

http://support.Microsoft.com/kb/2904034

If the problem persists, then go to method 2.

Method 2

Refer to suggestions provided by Vijay B responded on December 22, 2009.

http://answers.Microsoft.com/en-us/Windows/Forum/Windows_7-system/the-system-cannot-find-the-path-specified-error/dae5f759-B053-4a4a-87af-42e79f517631

I hope this helps to solve the issue. If the problem persists, get back to us. We will be happy to help you.

Updated with the hash values column

Hi all

I have a requirement to add a column to a table and fill it with the hash values. The table contains an xml column and hash value of this column need to be filled to newly added column. I think that the ora_hash function will not support the xml type column. Just tested with the following script and it works.

update TBL_COMPONENT_XSL set hash_val = ora_hash((SELECT TCX.COMPONENT_XSL.getStringVal() FROM TBL_COMPONENT_XSL TCX where rownum =1));

can you please suggest me how to fill the column with the hash values.

SQL> desc TBL_COMPONENT_XSL
 Name                                      Null?    Type
 ----------------------------------------- -------- ----------------------------
 COMPONENT_XSL_ID                          NOT NULL NUMBER(18)
 LINE_OF_BUSINESS                          NOT NULL VARCHAR2(30)
 ORDER_SOURCE                              NOT NULL VARCHAR2(10)
 COMPONENT_NAME                            NOT NULL VARCHAR2(30)
 COMPONENT_SCHEMA_VERSION                  NOT NULL NUMBER(9)
 ACCESS_LEVEL                              NOT NULL VARCHAR2(30)
 COMPONENT_XSL                             NOT NULL SYS.XMLTYPE STORAGE BINARY
 DESCRIPTION                               NOT NULL VARCHAR2(200)
 HASH_VAL                                           NUMBER

HASH_VAL is the newly added column.

Thank you

Mani

What happens if you try with:

update of TCX TBL_COMPONENT_XSL set hash_val = ora_hash (TCX.COMPONENT_XSL.getStringVal ());

update of TCX TBL_COMPONENT_XSL set hash_val = ora_hash (TCX.COMPONENT_XSL.getClobVal ());

Index: http://www.orafaq.com/forum/t/70829/

Concerning

Girish Sharma

Please explain the lines of code...

Hi, kindly explain about DCBindingContainer and what object it contains in the code below

DCBindingContainer = dcBindings
(DCBindingContainer) BindingContext.getCurrent () .getCurrentBindingsEntry ();
DCIteratorBinding = eventDetailsContent
(DCIteratorBinding) dcBindings.get ("NsEventDetailsView1Iterator");

Published by: 887737 on September 28, 2011 04:46

Published by: 887737 on September 28, 2011 04:47

//gettting the binding context for the current page from the Databindings.cpx
//if you open Databindings.cpx you will have page and pagedefiniiton mapping, this code will fetch the particular binding reference for the current pagedefinition for a particular page
DCBindingContainer dcBindings = (DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();

// from the binding context we are getting the handle to the iterator that is defined in the pagedefinition file
DCIteratorBinding eventDetailsContent = (DCIteratorBinding)dcBindings.get("NsEventDetailsView1Iterator");

How to find the sql query by using the hash value
Hello

DBVERSION: 9.2.0.8

I generated the statspack report and I want to see total request and I hash_value here.

in v$ sql can't see all querys... .pls suggest me other ways...

Thank you
Srini...
Have you seen Peter's response? There is no installation other than that would be to store the history of the IMO. Another reason that you must pass to 10g or 11g better, now.

Aman...

[v 20141] Cannot get the text value code entry type

Hello world
I noticed that there are a lot of changes between versions 2014.0 and 2014,1.
In the old version, I used to put a text of the entry type and get its value in this way:
//-------------------- put code -----------------------------------
var text_element = sym.$("t_element")
text_element.html("");
inputtext_element = $('<input_/>').attr ({'type': 'text', 'placeholder': ", 'id': 'text_element', 'size': '30'});
inputtext_element. CSS ("background-color", "#ffffff");
inputtext_element. CSS ('font-size', '14px');
inputtext_element. CSS ('color', ' #000000 ' ");
inputtext_element. CSS ('outline', 'none');
inputtext_element. CSS ("at borders', 'none');
inputtext_element.appendTo (text_element);
//------------------- get Code -------------------------------
var input_value = $("#text_element").val ();
If (input_value == 'something') {}
doSomething();
} else {}
doSomethingElse();

}
//-------------------- end code ------------------------------
But now I can not use this system.
I inserted the text this way entry type:
SYM. $("t_element") .html ("< input type = 'text' = ' to write here!' placeholder = 'textElement' size = '30' style =' border: none;") background-color: #FFF; do-size: 11pt; Color: #000000; " / > ») ;
but now I can't retrieve its value.
Thanks for the help!

We do not add default jQuery as a dependency in 20141 more. Some of these tasks are dependent on the jQuery. Can you try to add jQuery as a dependency? You can use the option as shown in the attached screenshot. We are currently working on how to make it easier to add these dependencies if you need on a regular basis.

DIA-

Rownum and plan to see where Explain the terms > and <

Hi people...
I just wanted to share a comment... would make for a conceptual explanation on even!
SQL > select * from v version $;
BANNER
-----------------------------------------------------------------------------
Database Oracle 12 c Enterprise Edition Release 12.1.0.1.0 - 64 bit Production
PL/SQL Release 12.1.0.1.0 - Production
CORE Production 12.1.0.1.0
AMT for 64-bit Windows: Version 12.1.0.1.0 - Production
NLSRTL Version 12.1.0.1.0 - Production
SQL > select count (*) in the tab_rownum where rownum < 2;
Execution plan
----------------------------------------------------------
Hash value of plan: 1301825293
--------------------------------------------------------------------------
| ID | Operation | Name | Lines | Cost (% CPU). Time |
--------------------------------------------------------------------------
|   0 | SELECT STATEMENT |            |     1.     2 (0) | 00:00:01 |
|   1. GLOBAL TRI |            |     1.            |          |
|* 2 |   COUNT STOPKEY |            |       |            |          |
|   3.    TABLE ACCESS FULL | TAB_ROWNUM |     1.     2 (0) | 00:00:01 |
--------------------------------------------------------------------------
Information of predicates (identified by the operation identity card):
---------------------------------------------------
2 - filter(ROWNUM<2)
Statistics
----------------------------------------------------------
1 recursive calls
0 db block Gets
3 consistent gets
5 physical reads
0 redo size
542 bytes sent via SQL * Net to client
543 bytes received via SQL * Net from client
2 SQL * Net back and forth to and from the client
0 sorts (memory)
0 sorts (disk)
1 rows processed
As most of us should be aware of, First_Rows_k optimization takes place for query Rownum... !!
so for top query, the cardinality estimate is 1 and County stop happened key in the plan with filter as ROWNUM < 2.
Now let's run under SQL.
SQL > select count (*) in the tab_rownum where rownum > 2;
In any case... above SQL will be not all output lines.
As expected rownum is greater then 2... !!
allows to check the plan!
Execution plan
----------------------------------------------------------
Hash value of plan: 141762995
---------------------------------------------------------------------------
| ID | Operation | Name | Lines | Cost (% CPU). Time |
---------------------------------------------------------------------------
|   0 | SELECT STATEMENT |            |     1.   425 (1) | 00:00:01 |
|   1. GLOBAL TRI |            |     1.            |          |
|   2.   COUNTY |            |       |            |          |
|* 3 |    FILTER |            |       |            |          |
|   4.     TABLE ACCESS FULL | TAB_ROWNUM | 91740 |   425 (1) | 00:00:01 |
---------------------------------------------------------------------------
Information of predicates (identified by the operation identity card):
---------------------------------------------------
3 - filter(ROWNUM>2)
Statistics
----------------------------------------------------------
1 recursive calls
0 db block Gets
1529 gets coherent
1526 physical reads
If we check the cardinality estimates, this is the total of the lines of the table... That's why no First_Rows_K for this SQL optimization. (All_rows)
Although we will not get all the lines... always full scan table oracle...
Also... Button Count Stop has changed and filter + Count... !!
Need to understand... Why not oracle have an output for logic > rownum conditions than zero!
Why the filter for the second execution ends not SQL executions... it scan complete set... for lines nil!
Thank you
Deepak M.

Hello

WHERE ROWNUM > 2 is a very common mistake, but it's a mistake that most people make once, in development. They learn that it does not work, and they don't again. I expect Oracle to make the features so that unique development queries run faster. They are probably more concerned about what kind of things people do every day, in the Production.

Reg: Hash value of Plan-

Hi Experts,

CREATE TABLE test_x
(
   id         NUMBER PRIMARY KEY,
   name       VARCHAR2 (150 CHAR) NOT NULL
);

insert into test_x values(1,'AAA');
insert into test_x values(2,'BBB');
insert into test_x values(3,'CCC');
insert into test_x values(4,'DDD');
insert into test_x values(5,'EEE');
insert into test_x values(6,'FFF');
commit;


EXPLAIN PLAN FOR
      SELECT * FROM test_x;

select * from table(dbms_xplan.display);

Plan hash value: 1044436394
 
----------------------------------------------------------------------------
| Id  | Operation         | Name   | Rows  | Bytes | Cost (%CPU)| Time     |
----------------------------------------------------------------------------
|   0 | SELECT STATEMENT  |        |     6 |  1890 |     4   (0)| 00:00:01 |
|   1 |  TABLE ACCESS FULL| TEST_X |     6 |  1890 |     4   (0)| 00:00:01 |
----------------------------------------------------------------------------
 
Note
-----
   - dynamic sampling used for this statement (level=2)

Can someone me, what exactly is this hash value of Plan to explain it please?
Also, I found on the modification of the application, in some cases, the hash value is even and in some different. What is the concept behind this?

I found a boss, that whenever the COST is that even the hash value of the Plan is the same.
As...

EXPLAIN PLAN FOR
      SELECT * FROM test_x
       WHERE  name = 'EEE';

Plan hash value: 1044436394
 
----------------------------------------------------------------------------
| Id  | Operation         | Name   | Rows  | Bytes | Cost (%CPU)| Time     |
----------------------------------------------------------------------------
|   0 | SELECT STATEMENT  |        |     1 |   315 |     4   (0)| 00:00:01 |
|*  1 |  TABLE ACCESS FULL| TEST_X |     1 |   315 |     4   (0)| 00:00:01 |
----------------------------------------------------------------------------

EXPLAIN PLAN FOR
      SELECT * FROM test_x
       WHERE  name <> 'EEE';
   
   
Plan hash value: 1044436394
 
----------------------------------------------------------------------------
| Id  | Operation         | Name   | Rows  | Bytes | Cost (%CPU)| Time     |
----------------------------------------------------------------------------
|   0 | SELECT STATEMENT  |        |     5 |  1575 |     4   (0)| 00:00:01 |
|*  1 |  TABLE ACCESS FULL| TEST_X |     5 |  1575 |     4   (0)| 00:00:01 |
----------------------------------------------------------------------------

But differs from it, when COST is different ...

EXPLAIN PLAN FOR
      SELECT * FROM test_x
       WHERE id = 5;   
   
Plan hash value: 2610485043
 
--------------------------------------------------------------------------------------------
| Id  | Operation                   | Name         | Rows  | Bytes | Cost (%CPU)| Time     |
--------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT            |              |     1 |   315 |     1   (0)| 00:00:01 |
|   1 |  TABLE ACCESS BY INDEX ROWID| TEST_X       |     1 |   315 |     1   (0)| 00:00:01 |
|*  2 |   INDEX UNIQUE SCAN         | SYS_C0045794 |     1 |       |     1   (0)| 00:00:01 |
--------------------------------------------------------------------------------------------

I doubt, is this related to Oracle SQL Analysis?

Help much appreciated.
Vanessa B.

Published by: Vanessa B on November 8, 2012 18:08
-added code

http://docs.Oracle.com/CD/E11882_01/server.112/e25513/dynviews_3043.htm#REFRN30246

>
PLAN_HASH_VALUE
Numeric representation of the SQL plan for this cursor. Comparing one plan_hash_value to another easily identifies whether two plans are the same (rather than comparing two plans line by line).

Hash value of plan of
Hello
I'm in the database to version 10g, 10.2.0.4.
and I have a query that uses sometimes ok execution plan and sometimes poor execution plan.
Everyone that plans have different hash values.
Can I somehow map this query for hash value of plan ok ok?
You should see child_number different values for different plans. The creation of outlines is a simple:
```
BEGIN
  DBMS_OUTLN.create_outline(
    hash_value    => 3909283366,
    child_number  => 0,
    category      => 'SCOTT_OUTLINES');
END;
/
```
The example comes from Tim Hall's article: http://www.oracle-base.com/articles/misc/outlines.php.

Ultimately, an outline is only a bunch of advice internal sql.

Concerning

Martin

Hash value for Digital River Windows 7 Ultimate SP1, 32 and 64-bit downloads, Spanish

Hello.

I read in other posts here that Digital River links are legitimate to download original ISOs, and I saw the hash values for downloads of ISOs, for the English language. Because of the site web of Digital River no longer exist, I would like to know the hash value of the downloads for Windows 7 Ultimate SP1, 32 and 64-bit ISOs, Spanish. I have not found the hash of the ISOs for this language values.

Windows 7 Ultimate SP1 32 bit (Spanish):

SHA1: 5C1D3E8CFDC70DC44DC5AC1CB89CACC3C515B1E8

Windows 7 Ultimate SP1 64 bit (Spanish):

SHA1: AF4B835557B5F15B574A3A643EECAF922FC1236C

HASH value in a custom report

Hello

I created a custom report for Top SQL on a monitored by Foglight Oracle DB. During the creation, for the input data, I check the HASH value. OK, it shows HASH values, but the format is not identical to the database.

In the database, I have for example 432647

but in Foglight report I 45 M or 67G.

I am amazed. What is the problem with my report?

Thank you.

It looks like an inappropriate rendering engine has been configured for this area of the custom report. Did you leave the default rendering engine? If so, try some of the other converters and see if you get a better result.

Kind regards

Brian Wheeldon

Find SQL hash value statements
Oracle Database 10g
Red Hat Linux

One of our developers wants to recover the full 3 days sql statements. I have the hash value of statspack at this time.

I get the following.

Select SQL_FULLTEXT from v$ sqlarea where HASH_VALUE = 98832848;

no selected line

Is the statement that I used is the right? Is - this way? I get no return, does that mean that these SQL statements have aged?

This database is only about 16 GB and SGA Total is only about 1.3 GB.
If its 3 days it would be aged. Since you're on 10g, try mark dba_hist_sql_text who would be the oldest stored sqls provided your AWR retention period is in order.

Aman...

explain the plan and so on
Hello world

could someone please provide me with details of explained the plan and I would appreciate some related details explain plan, trace and tkprof

Thank you
Shareef
Hello

PLAN of EXPLAINING is an Oracle utility that analyzes a statement and shows the expected execution plan. It may be different from the implementation plan real for a number of reasons.

Extended SQL trace (10046 event) is a way to gather advanced diagnostic information. There are different levels, at levels 8 and 12 provide the greatest level of detail (you will be able to see the events of waiting and the bind variable values).

TKProf is a utility that processes the raw trace files and makes shaped the output in a more readable way. However, some experts prefer to work with trace files "gross" - they are not so difficult to read, especially if you get some practice.

There are other events of tracing: 10053 allows you to see what is happening inside the Oracle optimizer, 10104 allows to see the stats of hash etc join.

Best regards
Nikolai

explain the analysis analyzed, plan implementation, the hash value code

Similar Questions

Maybe you are looking for