Row counter

I am currently building a count field that increments for groups of consecutive lines.


SELECT EMPLOYEE_ID,
       DTE,
       HOURS,
       JOB,
       ACTIVITY
  FROM (SELECT EMPLOYEE_ID,
               DTE,
               HOURS,
               JOB,
               ACTIVITY_CDE,
               LAG (JOB, 1, JOB) OVER (ORDER BY DTE)
                  AS prev_jobnum,
               LEAD (JOB, 1, JOB) OVER (ORDER BY DTE)
                  AS next_jobnum
          FROM tablename
         WHERE     T_YEAR >= '2012'
               AND EMPLOYEE_ID = '1234'
               AND HOURS >= '8'
               
 WHERE     JOB = 'SICK'
       AND (JOB = prev_jobnum OR JOB = next_jobnum)

The result:

EMPLOYEE_ID	DTE	HOURS	JOB	ACTIVITY	SICK_COUNTER
1234	11/03/2013	7	SICK	GENLV	1
1234	12/03/2013	7	SICK	GENLV	2
1234	19/02/2014	7	SICK	GENLV	3
1234	20/02/2014	7	SICK	GENLV	4
1234	21/02/2014	7	SICK	GENLV	5
1234	07/08/2014	7	HOLIDAY	GENLV	1
1234	08/08/2014	7	HOLIDAY	GENLV	2

I need the meter to zero when it's not the same consecutive game. The result should look like this:

EMPLOYEE_ID	DTE	HOURS	JOB	ACTIVITY	SICK_COUNTER
1234	11/03/2013	7	SICK	GENLV	1
1234	12/03/2013	7	SICK	GENLV	2
1234	19/02/2014	7	SICK	GENLV	1
1234	20/02/2014	7	SICK	GENLV	2
1234	21/02/2014	7	SICK	GENLV	3
1234	07/08/2014	7	HOLIDAY	GENLV	1
1234	08/08/2014	7	HOLIDAY	GENLV	2

Any ideas?

OK, this is my last attempt for today.

If test you it, don't forget some cases with the holidays.

If you a protection requirements were implemented properly, perhaps we can find a less cumbersome approach:

with pre_grps like)

Select

employee_id

dte

hours

work

activity

-1 start of a new group of sick, 0 no group start, -1 start again no group sick

When job = 'ILL' - sick with precessor ('sick', 'HOLIDAYS') and the offset in hours > = 7 cannot be a new group

and offset (employment) over (partition by employee_id) stopped by dte ('sick', 'HOLIDAY')

and the offset (in hours) over (partition by employee_id) stopped by dte > = 7

then 0

When job = 'HOLIDAY '.

so to case when lag (job 1, employment) over (partition by employee_id stopped by dte) = "SICK".

and offset (hours, 1, 0) over (partition by employee_id stopped by dte) > = 7

and lead(job,1,job) over (partition by employee_id stopped by dte) = "SICK".

and lead (hours, 1, 0) over (partition by employee_id stopped by dte) > = 7

then 0 - holiday cant never be the beginning of a group of consecutive sick if it is included by sick

-Hypothesis: entry only vacation between two entrances for SICK

1 other

end

1 other

end grp_flag

, case when work = 'HOLIDAY '.

so to case when lag (job 1, employment) over (partition by employee_id stopped by dte) = "SICK".

and offset (hours, 1, 0) over (partition by employee_id stopped by dte) > = 7

and lead(job,1,job) over (partition by employee_id stopped by dte) = "SICK".

and lead (hours, 1, 0) over (partition by employee_id stopped by dte) > = 7

then "SICK".

another job

end

another job

end job_drv

from the data

)

grps as)

Select

employee_id

dte

hours

work

activity

sum (grp_flag) on the grp (partition by employee_id stopped by dte)

job_drv

of pre_grps

)

Select

employee_id

dte

hours

work

activity

, sum (case when job_drv = 'SICK' then 1 else 0 end) on counter (partition employe_id, order of grp by dte)

- or perhaps better

-, case when job_drv = "SICK".

-then sum (1) (partition employe_id, order of grp by dte)

-0 otherwise

-end meter

PEB

order by employee_id, dte, counter

Tags: Database

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inmemory_query string ENABLE
inmemory_size big integer 0
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Thanks in advance

Firstly, thank you for posting the 10g implementation plan, which was one of the key things that we were missing.

Second, you realize that you have completely different execution plans, so you can expect different behavior on each system.

Your package of 10g has a total cost of 23 959 while your plan of 12 c has a cost of 95 373 which is almost 4 times more. All things being equal, cost is supposed to relate directly to the time spent, so I expect the 12 c plan to take much more time to run.

From what I can see the 10g plan begins with a scan of full table on DEALERS, and then a full scan on SCARF_VEHICLE_EXCLUSIONS table, and then a full scan on CBX_tlemsani_2000tje table, and then a full scan on CLAIM_FACTS table. The first three of these analyses tables have a very low cost (2 each), while the last has a huge cost of 172K. Yet once again, the first three scans produce very few lines in 10g, less than 1,000 lines each, while the last product table scan 454 K lines.

It also looks that something has gone wrong in the 10g optimizer plan - maybe a bug, which I consider that Jonathan Lewis commented. Despite the full table scan with a cost of 172 K, NESTED LOOPS it is part of the only has a cost of 23 949 or 24 K. If the math is not in terms of 10g. In other words, maybe it's not really optimal plan because 10g optimizer may have got its sums wrong and 12 c might make his right to the money. But luckily this 'imperfect' 10g plan happens to run fairly fast for one reason or another.

The plan of 12 starts with similar table scans but in a different order. The main difference is that instead of a full table on CLAIM_FACTS scan, it did an analysis of index on CLAIM_FACTS_AK9 beach at the price of 95 366. It is the only main component of the final total cost of 95 373.

Suggestions for what to do? It is difficult, because there is clearly an anomaly in the system of 10g to have produced the particular execution plan that he uses. And there is other information that you have not provided - see later.

You can try and force a scan of full table on CLAIM_FACTS by adding a suitable example suspicion "select / * + full (CF) * / cf.vehicle_chass_no...". "However, the tips are very difficult to use and does not, guarantee that you will get the desired end result. So be careful. For the essay on 12 c, it may be worth trying just to see what happens and what produces the execution plan looks like. But I would not use such a simple, unique tip in a production system for a variety of reasons. For testing only it might help to see if you can force the full table on CLAIM_FACTS scan as in 10g, and if the performance that results is the same.

The two plans are parallel ones, which means that the query is broken down into separate, independent steps and several steps that are executed at the same time, i.e. several CPUS will be used, and there will be several readings of the disc at the same time. (It is a mischaracterization of the works of parallel query how). If 10g and 12 c systems do not have the SAME hardware configuration, then you would naturally expect different time elapsed to run the same parallel queries. See the end of this answer for the additional information that you may provide.

But I would be very suspicious of the hardware configuration of the two systems. Maybe 10 g system has 16-core processors or more and 100's of discs in a matrix of big drives and maybe the 12 c system has only 4 cores of the processor and 4 disks. That would explain a lot about why the 12 c takes hours to run when the 10 g takes only 30 minutes.

Remember what I said in my last reply:

"Without any contrary information I guess the filter conditions are very low, the optimizer believes he needs of most of the data in the table and that a table scan or even a limited index scan complete is the"best"way to run this SQL. In other words, your query takes just time because your tables are big and your application has most of the data in these tables. "

When dealing with very large tables and to do a full table parallel analysis on them, the most important factor is the amount of raw hardware, you throw the ball to her. A system with twice the number of CPUS and twice the number of disks will run the same parallel query in half of the time, at least. It could be that the main reason for the 12 c system is much slower than the system of 10g, rather than on the implementation plan itself.

You may also provide us with the following information which would allow a better analysis:
- Row counts in each tables referenced in the query, and if one of them are partitioned.
- Hardware configurations for both systems - the 10g and the 12 a. Number of processors, the model number and speed, physical memory, CPU of discs.
- The discs are very important - 10g and 12 c have similar disk subsystems? You use simple old records, or you have a San, or some sort of disk array? Are the bays of identical drives in both systems? How are they connected? Fast Fibre Channel, or something else? Maybe even network storage?
- What is the size of the SGA in both systems? of values for MEMORY_TARGET and SGA_TARGET.
- The fact of the CLAIM_FACTS_AK9 index exist on the system of 10g. I guess he does, but I would like that it confirmed to be safe.
John Brady

Index is out of bounds of the array in OracleUdt.SetValue)

I need best eyes on it, I was beaten mine top for days now.
I have a lot of classes built to pass the Oracle UDT to a procedure in a package. They all work, including several that are almost identical to the one sent me adjustments. But it returns the error "Index is off limits..." by calling OracleUdt.SetValue ().
The absolute minimum code is below, and it's a mouth-full. My apologies for the length.
-Types of oracle-
create or replace type VARRAY IS of DMA_NUM_Varray (250), OF NUMBER;
-In a Package Oracle.
PROCEDURE Create_commercials_Owr (f_dma_num_tab IN DMA_NUM_Varray) IS...
This procedure made 4 other settings, including 2 UDT, all defined before this one on the list of parameters. One of them is an another VArray (50), and no error is returned on it, but only on the DMANumberArray.
---C# . NET-
public class DMANumberArray: INullable, {IOracleCustomType}
[OracleArrayMapping()]
public OracleDecimal [table;
Private bool isNull.
private OracleUdtStatus statusArray [];
public OracleUdtStatus [{StatusArray}
Get {}
Return this.statusArray;
}
{Set
this.statusArray = value;
}
}
public virtual bool IsNull {}
Get {}
isNull feedback;
}
}
public static {NULL DMANumberArray
Get {}
Did DMANumberArray = new DMANumberArray();
did.isNull = true;
back has done;
}
}
public virtual void FromCustomObject (OracleConnection, IntPtr udt oracleConn) {}
OracleUdt.SetValue (oracleConn, udt, 0, array, statusArray);
}
public virtual void ToCustomObject (OracleConnection, IntPtr udt oracleConn) {}
Object objectStatusArray = null;
Table = (OracleDecimal []) OracleUdt.GetValue (oracleConn, udt, 0, out objectStatusArray);
statusArray = objectStatusArray (OracleUdtStatus []);
}
}
[OracleCustomTypeMapping ("APCTS. DMA_NUM_VARRAY")]
public class DMANumberArrayFactory: IOracleCustomTypeFactory, IOracleArrayTypeFactory {}
public IOracleCustomType CreateObject() {}
return new DMANumberArray();
}
public Array CreateArray (int elementCount) {}
return of new OracleDecimal [elementCount value];
}
public Array CreateStatusArray (int elementCount) {}
return new OracleUdtStatus [elementCount value];
}
}
DataTable dmaTable = new DataTable();
using (da SqlDataAdapter = new SqlDataAdapter (query, sql)) {}
Bah Fill (dmaTable);
}
DMANumberArray dma = new DMANumberArray();
idCount = dmaTable.Rows.Count;
If idCount (idCount > 250) = 250; The error occurs for all values > = 5, but good for 1-4
DMA. Table = new OracleDecimal [idCount]; limit of 250
for (int i = 0; i < idCount; i ++) {}
DMA. Table [i] = OracleDecimal.Parse (dmaTable.Rows [i] ["DMA_Number"]. (ToString());
}
DMA. StatusArray = new OracleUdtStatus [] {OracleUdtStatus.NotNull, OracleUdtStatus.Null, OracleUdtStatus.NotNull, OracleUdtStatus.NotNull};
string query = "APCTS. OWR_APIS. Create_commercials_Owr ';
com. connection = oracle;
using (OracleCommand cmd = new OracleCommand (query, oracle)) {}
cmd.CommandType = CommandType.StoredProcedure;
OracleParameter paramDMAArrayObject = new OracleParameter();
paramDMAArrayObject.OracleDbType = OracleDbType.Array;
paramDMAArrayObject.Direction = ParameterDirection.Input;
paramDMAArrayObject.UdtTypeName = 'APCTS. DMA_NUM_VARRAY ';
paramDMAArrayObject.Value = dma;
cmd. Parameters.Add (paramDMAArrayObject);
cmd ExecuteNonQuery());
}
I can't for the life of see me where anything is something more bigger than the indexing table as it was size and limited to 250 elements.
The only weird thing I see belongs to the class DMANumberArrayFactory, specifically CreateArray. When I break here, the value of the value of elementCount is always zero, even when the table of the UDT object was created with values greater than zero.
What did I miss?

Found the problem. I was looking at the wrong table. This is the picture of the situation that is causing the error. Nothing in the documentation explains clearly what this table is for, or that its size should match the size of the array, or why you would define each item to Null or not null.

But once I size to match and set each element, the error is gone. Bad documentation. Who writes these things, and why they write them so as to give full explanations?

SQL execution plan - question

Under SQL result in development in a few seconds, but in production continues to run. Explain plan is also less.

Oracle Database 11 g Enterprise Edition Release 11.2.0.4.0 - 64 bit Production

CURSOR_SHARING is set to EXACT (production) and FORCE (development) - is this the reason?

select wonum from workorder where
worktype in ('EM','CM')
and siteid = 'DWS_DSS'
and historyflag = 0
and (exists (select null
             from dcw_ddotpermits b
             where workorder.wonum = b.wonum 
                and workorder.siteid = b.siteid
                and b.permittype in ('Construction Permit', 'Occupancy Permit')
                and b.permitenddate > sysdate
             group by b.wonum, b.permittype
             having count(wonum) > 1));

Explain the Plan of Production (which is slow)

-------------------------------------------------------------------------------------------------------------------------
| Id  | Operation                          | Name               | Rows  | Bytes | Cost (%CPU)| Time     | Pstart| Pstop |
-------------------------------------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT                   |                    |     1 |    26 |   162K (17)| 00:32:30 |       |       |
|*  1 |  TABLE ACCESS BY GLOBAL INDEX ROWID| WORKORDER          |  1491 | 38766 |  4259   (1)| 00:00:52 |     1 |     1 |
|*  2 |   INDEX RANGE SCAN                 | WORKORDER_NDX20    |  2399 |       |   988   (1)| 00:00:12 |       |       |
|*  3 |    FILTER                          |                    |       |       |            |          |       |       |
|   4 |     HASH GROUP BY                  |                    |     1 |    35 |     6  (17)| 00:00:01 |       |       |
|*  5 |      TABLE ACCESS BY INDEX ROWID   | DCW_DDOTPERMITS    |     1 |    35 |     5   (0)| 00:00:01 |       |       |
|*  6 |       INDEX RANGE SCAN             | W_DDOTPERMITS_NDX2 |     3 |       |     2   (0)| 00:00:01 |       |       |
------------------------------------------------------------------------------------------------------------------------

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

   1 - filter("WORKTYPE"='CM' OR "WORKTYPE"='EM')
   2 - access("SITEID"='DWS_DSS' AND "HISTORYFLAG"=0)
       filter( EXISTS (SELECT 0 FROM "MAXIMO"."DCW_DDOTPERMITS" "B" WHERE "B"."WONUM"=:B1 AND 
              ("B"."PERMITTYPE"='Construction Permit' OR "B"."PERMITTYPE"='Occupancy Permit') AND 
              "B"."PERMITENDDATE">SYSDATE@! AND "B"."SITEID"=:B2 GROUP BY "B"."WONUM","B"."PERMITTYPE" HAVING COUNT(*)>1))
   3 - filter(COUNT(*)>1)
   5 - filter(("B"."PERMITTYPE"='Construction Permit' OR "B"."PERMITTYPE"='Occupancy Permit') AND 
              "B"."PERMITENDDATE">SYSDATE@! AND "B"."SITEID"=:B1)
   6 - access("B"."WONUM"=:B1)

Explain the Plan of development (which is fast)

-----------------------------------------------------------------------------------------------------
| Id  | Operation                      | Name               | Rows  | Bytes | Cost (%CPU)| Time     |
-----------------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT               |                    |     1 |    25 | 28247  (17)| 00:05:39 |
|*  1 |  FILTER                        |                    |       |       |            |          |
|*  2 |   VIEW                         | index$_join$_001   |  7991 |   195K|   985   (1)| 00:00:12 |
|*  3 |    HASH JOIN                   |                    |       |       |            |          |
|   4 |     INLIST ITERATOR            |                    |       |       |            |          |
|*  5 |      INDEX RANGE SCAN          | WWORKORDER_NDX32   |  7991 |   195K|   279   (2)| 00:00:04 |
|*  6 |     INDEX RANGE SCAN           | WORKORDER_NDX20    |  7991 |   195K|   973   (1)| 00:00:12 |
|*  7 |   FILTER                       |                    |       |       |            |          |
|   8 |    HASH GROUP BY               |                    |     1 |    39 |     6  (17)| 00:00:01 |
|*  9 |     TABLE ACCESS BY INDEX ROWID| DCW_DDOTPERMITS    |     1 |    39 |     5   (0)| 00:00:01 |
|* 10 |      INDEX RANGE SCAN          | W_DDOTPERMITS_NDX2 |     3 |       |     2   (0)| 00:00:01 |
-----------------------------------------------------------------------------------------------------

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

   1 - filter( EXISTS (SELECT 0 FROM "MAXIMO"."DCW_DDOTPERMITS" "B" WHERE "B"."WONUM"=:B1 
              AND ("B"."PERMITTYPE"=:SYS_B_4 OR "B"."PERMITTYPE"=:SYS_B_5) AND 
              "B"."PERMITENDDATE">SYSDATE@! AND "B"."SITEID"=:B2 GROUP BY "B"."WONUM","B"."PERMITTYPE" 
              HAVING COUNT(*)>:SYS_B_6))
   2 - filter("HISTORYFLAG"=:SYS_B_3 AND "SITEID"=:SYS_B_2 AND ("WORKTYPE"=:SYS_B_0 OR 
              "WORKTYPE"=:SYS_B_1))
   3 - access(ROWID=ROWID)
   5 - access("WORKTYPE"=:SYS_B_0 OR "WORKTYPE"=:SYS_B_1)
   6 - access("SITEID"=:SYS_B_2 AND "HISTORYFLAG"=:SYS_B_3)
   7 - filter(COUNT(*)>:SYS_B_6)
   9 - filter(("B"."PERMITTYPE"=:SYS_B_4 OR "B"."PERMITTYPE"=:SYS_B_5) AND 
              "B"."PERMITENDDATE">SYSDATE@! AND "B"."SITEID"=:B1)
  10 - access("B"."WONUM"=:B1)

It looks more like a problem with the size of the data and related statistics. (It may be simply the outdated statistics on dev).

In the production of a larger data NDX20 index on its own looks too expensive to the optimizer so it combines this with the index of ndx32 to avoid visiting the table.

The first step to study the problem would be to check if the estimated row counts are realistic for individual systems, and then to determine if the data cluster for the production system is much better than Oracle think it is - if yes, then (for newer versions) affecting the preference of table 'table made of blocks cached' a realistic value can help ( https://jonathanlewis.wordpress.com/2015/11/02/clustering_factor-4/ ). If all else fails and the dev is good then allusion and capture of a Plan SQL database may be required.

Concerning

Jonathan Lewis

In passing the huge parameter to oracle procedure have a performance hit?

I have a script attached, in which I am trying process/XML parsing in a table (STAGE_TBL) in the XMLTYPE column and insert the data analyzed in another table (PROCESSED_DATA_TBL). The XML file can be huge up to 2MB, which translates into approximately 2000 + lines of analyzed data. The issue I see is when I pass an XML object to a procedure (STAGE_TBL_PROCESS) to analyze its takes about 10 seconds per XML, but rather than from XML if I directly pick up table in the procedure (STAGE_TBL_PROCESS) passing the ID to be about 0.15 seconds. According to the document while params are passed by reference, so why is this variation of performance?
Details of database Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64-bit version of PL/SQL Production 11.2.0.3.0 - Production "CORE 11.2.0.3.0 Production" TNS for Linux: Version 11.2.0.3.0 - Production NLSRTL Version 11.2.0.3.0 - Production
Note: I could not perform SQL_TRACE or DBMS_STATS as I don't have access to them.
/* This one is taking .15 seconds to process an XML with about 2000 rp_sendRow elements */ DECLARE CURSOR NewStage IS SELECT * FROM STAGE_TBL WHERE status = 'N' ORDER BY PUT_TIME ASC; SUBTYPE rt_NewStage IS NewStage % rowtype; ROW_COUNT INTEGER := 0; -- Return value from calling the procedure READ_COUNT INTEGER := 0; -- Number of rows read from the stage table INSERT_COUNT_TOTAL INTEGER := 0; -- Number of Inserts Inven records ERROR_COUNT INTEGER := 0; -- Number of Inven inserts that did inserted more then 1 row in Inven PROCESS_STATUS STATUS.MmsStatus; STATUS_DESCRIPTION STATUS.MmsStatusReason; ERRMSG VARCHAR2(500); PROCEDURE STAGE_TBL_PROCESS (IDDATA IN RAW, PROCESS_STATUS OUT VARCHAR2, STATUS_DESCRIPTION OUT VARCHAR2, ROW_COUNT OUT NUMBER) AS /* This procedure is to parse the XML from STAGE_TBL and populate the data from XML to PROCESSED_DATA_TBL table IN PARAMS ---------- IDDATA - ID from STAGE_TBL xData - XMLType field from XML_DOCUMENT of STAGE_TBL OUT PARAMS ----------- PROCESS_STATUS - The STATUS of parsing and populating PROCESSED_DATA_TBL STATUS_DESCRIPTION - The description of the STATUS of parsing and populating PROCESSED_DATA_TBL ROW_COUNT - Number of rows inserted into PROCESSED_DATA_TBL */ BEGIN INSERT ALL INTO PROCESSED_DATA_TBL (PD_ID, STORE, SALES_NBR, UNIT_COST, ST_FLAG, ST_DATE, ST, START_QTY, START_VALUE, START_ON_ORDER, HAND, ORDERED, COMMITED, SALES, RECEIVE, VALUED, ID_1, ID_2, ID_3, UNIT_PRICE, EFFECTIVE_DATE, STATUS, STATUS_DATE, STATUS_REASON) VALUES (IDDATA ,store ,SalesNo ,UnitCost ,StWac ,StDt ,St ,StartQty ,StartValue ,StartOnOrder ,Hand ,Ordered ,COMMITED ,Sales ,Rec ,Valued ,Id1 ,Id2 ,Id3 ,UnitPrice ,to_Date(EffectiveDate||' '||EffectiveTime, 'YYYY-MM-DD HH24:MI:SS') ,'N' ,SYSDATE ,'XML PROCESS INSERT') WITH T AS ( SELECT STG.XML_DOCUMENT FROM STAGE_TBL STG WHERE STG.ID = IDDATA) -- This is to parse and fetch the data from XML SELECT E.* FROM T, XMLTABLE('rp_send/rp_sendRow' PASSING T.XML_DOCUMENT COLUMNS store VARCHAR(20) PATH 'store' ,SalesNo VARCHAR(20) PATH 'sales' ,UnitCost NUMBER PATH 'cost' ,StWac VARCHAR(20) PATH 'flag' ,StDt DATE PATH 'st-dt' ,St NUMBER PATH 'st' ,StartQty NUMBER PATH 'qty' ,StartValue NUMBER PATH 'value' ,StartOnOrder NUMBER PATH 'start-on-order' ,Hand NUMBER PATH 'hand' ,Ordered NUMBER PATH 'order' ,Commited NUMBER PATH 'commit' ,Sales NUMBER PATH 'sales' ,Rec NUMBER PATH 'rec' ,Valued NUMBER PATH 'val' ,Id1 VARCHAR(30) PATH 'id-1' ,Id2 VARCHAR(30) PATH 'id-2' ,Id3 VARCHAR(30) PATH 'id-3' ,UnitPrice NUMBER PATH 'unit-pr' ,EffectiveDate VARCHAR(30) PATH 'eff-dt' ,EffectiveTime VARCHAR(30) PATH 'eff-tm' ) E; ROW_COUNT := SQL%ROWCOUNT; -- Not the # of all the rows inserted. PROCESS_STATUS := STATUS.PROCESSED; IF ROW_COUNT < 1 THEN -- The insert failed Row Count = 0 No exception thrown PROCESS_STATUS := STATUS.ERROR; STATUS_DESCRIPTION := 'ERROR Did not insert into Pos Inventory. Reason Unknown'; END IF; EXCEPTION WHEN OTHERS THEN ROW_COUNT := 0; PROCESS_STATUS := STATUS.ERROR; STATUS_DESCRIPTION := 'SqlCode:' || SQLCODE || ' SqlErrMsg:' || SQLERRM; END; BEGIN DBMS_OUTPUT.enable(NULL); FOR A_NewStage IN NewStage LOOP READ_COUNT := READ_COUNT + 1; STAGE_TBL_PROCESS(A_NewStage.ID, PROCESS_STATUS, STATUS_DESCRIPTION, ROW_COUNT); INSERT_COUNT_TOTAL := INSERT_COUNT_TOTAL + ROW_COUNT; IF(ROW_COUNT <= 0 OR PROCESS_STATUS = STATUS.ERROR) THEN ERROR_COUNT := ERROR_COUNT + 1; UPDATE STAGE_TBL SET status = PROCESS_STATUS, status_DATE = SYSDATE, status_DESCRIPTION = STATUS_DESCRIPTION WHERE ID = A_NewStage.ID; ELSE UPDATE STAGE_TBL SET status = PROCESS_STATUS, status_DATE = SYSDATE, status_DESCRIPTION = STATUS_DESCRIPTION, SHRED_DT = SYSDATE WHERE ID = A_NewStage.ID; END IF; COMMIT; END LOOP; COMMIT; IF ERROR_COUNT > 0 THEN ERRMSG := '** ERROR: ' || ERROR_COUNT || ' Stage records did not insert in to the Processed table correctly'; RAISE_APPLICATION_ERROR(-20001,ErrMsg); END IF; EXCEPTION WHEN OTHERS THEN RAISE; END ; /* This one is taking 10 seconds to process an XML with about 2000 rp_sendRow elements */ DECLARE CURSOR NewStage IS SELECT * FROM STAGE_TBL WHERE status = 'N' ORDER BY PUT_TIME ASC; SUBTYPE rt_NewStage IS NewStage % rowtype; ROW_COUNT INTEGER := 0; -- Return value from calling the procedure READ_COUNT INTEGER := 0; -- Number of rows read from the stage table INSERT_COUNT_TOTAL INTEGER := 0; -- Number of Inserts Inven records ERROR_COUNT INTEGER := 0; -- Number of Inven inserts that did inserted more then 1 row in Inven PROCESS_STATUS STATUS.MmsStatus; STATUS_DESCRIPTION STATUS.MmsStatusReason; ERRMSG VARCHAR2(500); PROCEDURE STAGE_TBL_PROCESS (IDDATA IN RAW, xData IN STAGE_TBL.XML_DOCUMENT%TYPE, PROCESS_STATUS OUT VARCHAR2, STATUS_DESCRIPTION OUT VARCHAR2, ROW_COUNT OUT NUMBER) AS /* This procedure is to parse the XML from STAGE_TBL and populate the data from XML to PROCESSED_DATA_TBL table IN PARAMS ---------- IDDATA - ID from STAGE_TBL xData - XMLType field from XML_DOCUMENT of STAGE_TBL OUT PARAMS ----------- PROCESS_STATUS - The STATUS of parsing and populating PROCESSED_DATA_TBL STATUS_DESCRIPTION - The description of the STATUS of parsing and populating PROCESSED_DATA_TBL ROW_COUNT - Number of rows inserted into PROCESSED_DATA_TBL */ BEGIN INSERT ALL INTO PROCESSED_DATA_TBL (PD_ID, STORE, SALES_NBR, UNIT_COST, ST_FLAG, ST_DATE, ST, START_QTY, START_VALUE, START_ON_ORDER, HAND, ORDERED, COMMITED, SALES, RECEIVE, VALUED, ID_1, ID_2, ID_3, UNIT_PRICE, EFFECTIVE_DATE, STATUS, STATUS_DATE, STATUS_REASON) VALUES (IDDATA ,store ,SalesNo ,UnitCost ,StWac ,StDt ,St ,StartQty ,StartValue ,StartOnOrder ,Hand ,Ordered ,COMMITED ,Sales ,Rec ,Valued ,Id1 ,Id2 ,Id3 ,UnitPrice ,to_Date(EffectiveDate||' '||EffectiveTime, 'YYYY-MM-DD HH24:MI:SS') ,'N' ,SYSDATE ,'XML PROCESS INSERT') -- This is to parse and fetch the data from XML SELECT E.* FROM XMLTABLE('rp_send/rp_sendRow' PASSING xDATA COLUMNS store VARCHAR(20) PATH 'store' ,SalesNo VARCHAR(20) PATH 'sales' ,UnitCost NUMBER PATH 'cost' ,StWac VARCHAR(20) PATH 'flag' ,StDt DATE PATH 'st-dt' ,St NUMBER PATH 'st' ,StartQty NUMBER PATH 'qty' ,StartValue NUMBER PATH 'value' ,StartOnOrder NUMBER PATH 'start-on-order' ,Hand NUMBER PATH 'hand' ,Ordered NUMBER PATH 'order' ,Commited NUMBER PATH 'commit' ,Sales NUMBER PATH 'sales' ,Rec NUMBER PATH 'rec' ,Valued NUMBER PATH 'val' ,Id1 VARCHAR(30) PATH 'id-1' ,Id2 VARCHAR(30) PATH 'id-2' ,Id3 VARCHAR(30) PATH 'id-3' ,UnitPrice NUMBER PATH 'unit-pr' ,EffectiveDate VARCHAR(30) PATH 'eff-dt' ,EffectiveTime VARCHAR(30) PATH 'eff-tm' ) E; ROW_COUNT := SQL%ROWCOUNT; -- Not the # of all the rows inserted. PROCESS_STATUS := STATUS.PROCESSED; IF ROW_COUNT < 1 THEN -- The insert failed Row Count = 0 No exception thrown PROCESS_STATUS := STATUS.ERROR; STATUS_DESCRIPTION := 'ERROR Did not insert into Pos Inventory. Reason Unknown'; END IF; EXCEPTION WHEN OTHERS THEN ROW_COUNT := 0; PROCESS_STATUS := STATUS.ERROR; STATUS_DESCRIPTION := 'SqlCode:' || SQLCODE || ' SqlErrMsg:' || SQLERRM; END; BEGIN DBMS_OUTPUT.enable(NULL); FOR A_NewStage IN NewStage LOOP READ_COUNT := READ_COUNT + 1; STAGE_TBL_PROCESS(A_NewStage.ID, A_NewStage.XML_DOCUMENT, PROCESS_STATUS, STATUS_DESCRIPTION, ROW_COUNT); INSERT_COUNT_TOTAL := INSERT_COUNT_TOTAL + ROW_COUNT; IF(ROW_COUNT <= 0 OR PROCESS_STATUS = STATUS.ERROR) THEN ERROR_COUNT := ERROR_COUNT + 1; UPDATE STAGE_TBL SET status = PROCESS_STATUS, status_DATE = SYSDATE, status_DESCRIPTION = STATUS_DESCRIPTION WHERE ID = A_NewStage.ID; ELSE UPDATE STAGE_TBL SET status = PROCESS_STATUS, status_DATE = SYSDATE, status_DESCRIPTION = STATUS_DESCRIPTION, SHRED_DT = SYSDATE WHERE ID = A_NewStage.ID; END IF; COMMIT; END LOOP; COMMIT; IF ERROR_COUNT > 0 THEN ERRMSG := '** ERROR: ' || ERROR_COUNT || ' Stage records did not insert in to the Processed table correctly'; RAISE_APPLICATION_ERROR(-20001,ErrMsg); END IF; EXCEPTION WHEN OTHERS THEN RAISE; END ; My XML with just one rp_sendRow element, it can go upto 2000 rp_sendRow elements <?xml version = \"1.0\" encoding = \"UTF-8\"?> <rp_send xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"> <rp_sendRow> <store>0123</store> <sales>022399190</sales> <cost>0.01</cost> <flag>true</flag> <st-dt>2013-04-19</st-dt> <st>146.51</st> <qty>13.0</qty> <value>0.0</value> <start-on-order>0.0</start-on-order> <hand>0.0</hand> <order>0.0</order> <commit>0.0</commit> <sales>0.0</sales> <rec>0.0</rec> <val>0.0</val> <id-1/> <id-2/> <id-3/> <unit-pr>13.0</unit-pr> <eff-dt>2015-06-16</eff-dt> <eff-tm>09:12:21</eff-tm> </rp_sendRow> </rp_send>

The issue I see is when I pass an XML object to a procedure (STAGE_TBL_PROCESS) to analyze its takes about 10 seconds per XML, but rather than from XML if I directly pick up table in the procedure (STAGE_TBL_PROCESS) passing the ID to be about 0.15 seconds.

In version 11.1, Oracle introduced a new model of storage for the data type XMLType called XML binary.

Binary XML become the default in 11.2.0.2, to disparage the old storage based on CLOB.

Binary XML is a format optimized after analysis for the storage and treatment of the XQuery.

When an XQuery expression is evaluated (through for example XMLTABLE) on an XMLType column stored as binary XML, Oracle can use an ongoing evaluation of XPath that surpasses the query even crushed a transitional XMLType of several order of magnitude.

You can see that in the action plan of the explain command:
```
SQL> SELECT E.*
  2  FROM stage_tbl t
  3     , XMLTABLE('rp_send/rp_sendRow' PASSING t.xml_document
  4         COLUMNS store VARCHAR(20) PATH 'store'
  5               , SalesNo VARCHAR(20) PATH 'sales'
  6               , UnitCost NUMBER PATH 'cost'
  7         ) E ;

Execution Plan
----------------------------------------------------------
Plan hash value: 1134903869

--------------------------------------------------------------------------------
| Id  | Operation          | Name      | Rows  | Bytes | Cost (%CPU)| Time     |
--------------------------------------------------------------------------------
|   0 | SELECT STATEMENT   |           |     1 |  2008 |    32   (0)| 00:00:01 |
|   1 |  NESTED LOOPS      |           |     1 |  2008 |    32   (0)| 00:00:01 |
|   2 |   TABLE ACCESS FULL| STAGE_TBL |     1 |  2002 |     3   (0)| 00:00:01 |
|   3 |   XPATH EVALUATION |           |       |       |            |          |
--------------------------------------------------------------------------------
```
When the query is executed on a passenger XMLType (for example, a parameter, or a PL/SQL variable), Oracle cannot run the binary model and use a functional assessment based on memory of the XML DOM-like representation.

You can see that in the plan to explain it by spoting a 'COLLECTION ITERATOR PICKLER FETCH' operation.

So what explains the difference (in your version) between treatment from a column of XMLType (stored in binary XML format) or a variable or a parameter.

From 11.2.0.4 and beyond, things have changed a bit with Oracle, introducing a new transitional level of optimization on XMLType.

The plan of the explain command will show a "XMLTABLE ASSESSMENT' in this case.

LEFT JOIN increases the number of lines

Hi guys,.
I had a problem, my left join retrieves multiple values. I know he has only 252 in there that correspond to the place where
condition. If I use the table in a left join with the same condition where my row count increases.
-1176 lines
Select count (erg_ID) of
MySchema. T_STA_ERG sta_erg
INNER JOIN T_MEN hoechst
ON sta_erg. PARAMETER = hoechst. PARAMETER
AND sta_erg. JAHR = 2014
where sta_erg. MESSERG_KNG = 'A' AND sta_erg. MESSERG_ALPHA IN ('03 ") and sta_erg. NORM_MESS is null
-252 lines
Select distinct erg_ID myschema. T_STA_ERG sta_erg where sta_erg. MESSERG_KNG = 'A' AND sta_erg. MESSERG_ALPHA IN ('03 ") and sta_erg. NORM_MESS is null
any clue´s how I can build in conditions in my join which would not increase the results of the line?

Why not just an inner join then?

I just started learning the PLSQL and I wrote this code of implementation, but it does not work?

CREATE TABLE LUKE
(Department_nn varchar (12),)
Number of Emp_idd (12) not null
);
insert into values Luke ("accounting", 11);
insert into values Luke ('Sales', 00);
insert into values of Luke (TI", 22);
DECLARE
CURSOR cur_luc is
Select
Department_nn,
Emp_idd
Luke;
My_cur_luc cur_luc % ROWTYPE;
BEGIN
Open cur_luc;
LOOP
extraction cur_luc
in My_cur_luc;
DBMS_OUTPUT. Put_line ('Emp ID: ' |) My_cur_luc.emp_idd);
dbms_output.put_line ('Row count: ' |) My_cur_luc % number of lines);
END LOOP;
/ * IF cur_luc % isopen THEN
close cur_luc;
END IF; */
END;

Thank you very much, I just figured out the problem, I have not called on my cursor in dbms_output.putline(cur_luc%rowcount). I called the recordname My_cur_luc instead.

Row counter

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