Domain Index - Select Query With Clause Does Not Return Any Records

Jun 30, 2012

I have created domain indexes on text columns of a materialised view to use "contains" clause when searching for data. The select query with "contains" clause does not return any records, however I was able to retrive data using via regular query using a like search.

-> will exec ctx_ddl.sync_index('index_name')'resolve my problem?
-> since the view is a materialized view, how can i make sure that the latest data added are also picked up?

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PL/SQL :: Select Query - Return 0 When No Records Fetched

Jun 25, 2013

I have a select query select userid from user_tbl where name='hhh';    

I want to return 0 when no records are fetched and I want to handle both teh cases in a single query other than proc or function.

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Text :: Index For Domain Index With Composite Domain Index (CDI) Very Slow

Jun 27, 2012

I am on 11.2.0.3 Enterprise Edition. We are using the new feature "Composite Domain Index" for a Domain index on a very large table (>250.000.000 rows). It really works with mixed queries. We added two number columns using FILTER BY.We have lots of DML on this table. Therefore, we are executing synchronize and optimize once the week. The synch behaves pretty normal. But "optimize_index" takes a very very long time to complete. I have switsched on 'logging' for the optimize process. The $I table takes some time but is finished normally. But the optimization of the $S table (that is the table created for the CDI feature) is running over 12 hours now - and far from being finished. From the logfile, I can see that it optimizes 1000 rows every 20 minutes. Here is the output of the logfile:

Oracle Text, 11.2.0.3.0
14:33:05 06/26/12 begin logging
14:33:05 06/26/12 event
14:33:05 06/26/12 process $N for optimize: SEQDEV.GEN_GES_DESCRIPTION_CTX_I
14:33:16 06/26/12
14:33:16 06/26/12
[code]....

I haven't found a recommendation from Oracle not to use "optimize_index" for Domain Indexes with CDI. But in my case, it would be much faster just to drop and recreate the Domain Index in question.

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SQL & PL/SQL :: Query Must Return All Equivalent Records

Nov 26, 2012

I've stucked with a query. I have a table that i store the IDs of logically equal records.

For example;
A = B
B = C
X = Y
Z = Y

My query must return all equivalent records. If you call the query with parameter 'A', the result set must contain B and C. And if you call the query with parameter 'Y', the result set will contain X AND Z. I have thought that i can write the query wity using start with connect by statement. But the query does not work as i expected. Here is my code and sample data:

create table temptable (ID1 number,ID2 number);/

insert into temptable values(11,12);/
insert into temptable values(12,13);/
insert into temptable values(13,14);/
insert into temptable values(13,15);/

SELECT distinct ID1 from
(
SELECT * FROM temptable
START WITH ID1 = 13 OR ID2 = 13
CONNECT BY NOCYCLE
(
(PRIOR ID1 = ID1) OR
(PRIOR ID1 = ID2) OR
(PRIOR ID2 = ID1) OR
(PRIOR ID2 = ID2))
) WHERE ID1 <> 13
union
[code]....

When i call the query with parameter 13, i'm expecting to get 11,12,14,15. But it returns only 12,14 and 15.

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SQL & PL/SQL :: Query To Return Value / String If No Records Found

Jun 17, 2012

Having following table:
UserID REC_TYP REC_CD
12345 'OFFR' 12
23456 'MSG' 13

I'd like to construct the query which in this particular case would return the REC_CD as 'Record_ID' for REC_TYP='OFFR' where USERID=? (always fetched by the application) and if such USER_ID doesn't exists (for the particular REC_TYP of course) to return string or any other value. e.g. The result for this query in case of user_id 23456 = would be "doesn't exist" or sth for instance 'FALSE' and for 123456 it would be '12'

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SQL & PL/SQL :: Select Query To Return Parent Rows?

Apr 1, 2012

I need to get the super set(parent) record from a relational table. Following is the structure of the table,

create table relation (data_field1 number(20),data_field2 number(20),data_field3 number(20),

primary key (data_field1,data_field2,data_field3) );
insert into relation (data_field1, data_field2, data_field3) values (-10,123,334);
insert into relation (data_field1, data_field2, data_field3) values (200,123,334);
insert into relation (data_field1, data_field2, data_field3) values (300,123,334);
insert into relation (data_field1, data_field2, data_field3) values (400,123,334);

[code].....

Here '-10' will be considered as parent(super set) for all other values. If i have records like below,

-10 200 300
100 200 300
123 200 300
521 201 300

Output should only contain two rows. A super set row and other distinct row(second column value is not equivalent to super set).

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Performance Tuning :: Query Using Row Num In Where Clause With Millions Of Records

Dec 8, 2010

There is a table in Database with millions of records and a query --- Select rowid, ANI, DNIS, message from tbl_sms_talkies where rownum<=:"SYS_B_0" ---- using the high CPU and also this query having high number of executions.

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Using Array Values In IN Clause Of Select Query?

Sep 9, 2008

I have some issues in passing array values to IN clause.

I am passing a String Array from Java to PL\SQL and want to use the Array values in the IN CLAUSE of Select Query

cust_array is the Array
search_id VARCHAR2(1000);
search_id := '';
FOR j IN 1 .. cust_array.count
LOOP
IF (j != 1) THEN
search_id := search_id || ''',''' || cust_array(j) || ''';
ELSE
search_id := search_id || '''' || cust_array(j) || '''';
END IF;
END LOOP;

trying to form a string of below form: search_id '3211335201','3211335209','3211335279','3211335509'

and use the string search_id in the IN clause of the search Query select * from DPP_EMP where empl in (search_id)

but the query does not returns any result

When I try to hardcode the values in the query as below, its returing 4 rows

select * from DPP_EMP where empl in ('3211335201','3211335209','3211335279','3211335509')

How to achieve this (String to the IN clause) or is there a better way of passing the Array values to the IN clause

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SQL & PL/SQL :: How To Use (select Statement) Rather Than (in Clause) In Pivot Query

May 27, 2011

I'm using pivot query feature of oracle 11g and came across a strange situation where i need to pass a "select statement" in a "in clause" of pivot query.

SQL> CREATE TABLE TEST1
2 (
3 UIN NUMBER(8) NOT NULL,
4 TESTING_ID NUMBER(4),
5 PFA_RESULT VARCHAR2(30 BYTE)
6 );

[code]....

I have tried with pivot xml but it not giving desired output in sql*plus session.It is giving unreadable output.

select * from
(select uin,testing_id,pfa_result from test1)
pivot xml (max(pfa_result) as result
for (testing_id) in (select distinct testing_id from test1));

[code]....

Here actually i want to use "select distinct id from test1" instead of "in (11,12,13,14,15)". Because i don't know how many id's will be there and of which values. e.g. 11 or 21 or 25.

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Rebuilding A Domain Index

Apr 1, 2013

I have a table in my application that has the following structure

Create table EVENT (project_id number, DISC_CMPLNT_TX clob, MAINT_ACT_TX CLOB,LGBK_CMT_TX VARCHAR2(1000 CHAR))
PARTITION BY RANGE (project_id)
(PARTITION pmax VALUES LESS THAN (MAXVALUE));

I have created the below preference on the three columns of the table.

begin
ctx_ddl.create_preference ('skipJoinLexer', 'BASIC_LEXER');
ctx_ddl.set_attribute ('skipJoinLexer', 'skipjoins', ';:.,()<>*"''#-');
ctx_ddl.create_preference ('logbookTextDS', 'MULTI_COLUMN_DATASTORE');
ctx_ddl.set_attribute ('logbookTextDS', 'COLUMNS', 'DISC_CMPLNT_TX, MAINT_ACT_TX,LGBK_CMT_TX');

end;

I have created a local partitioned index with the parameter NOPOPULATE create index lb_text_idx on ac_maint (DISC_CMPLNT_TX) indextype is ctxsys.context local parameters ('lexer skipJoinLexer datastore logbookTextDS NOPOPULATE');

When an new value of project_id is inserted into table1 , I create a partition using the following command where prjId is the new value of the project_id ALTER TABLE EVENT split PARTITION pmax AT ('||prjId||') INTO ( PARTITION p_' || prjId || ', PARTITION pmax)

Now I run a huge data load into the EVENT table for a project Id say 1 and insert millions of records.I want to rebuild the lb_text_idx for this partition alone so that data is available for searching by the application. I did a rebuild using the command " alter index lb_text_idx rebuild partition p_1".

However when I run the below sql, I get a count of 0. I know that the text MAINT is definitely present in the table.

SELECT COUNT(1) FROM EVENT WHERE PROJECT_ID = 1 and contains (DISC_CMPLNT_TX, 'MAINT' ) > 0

When I run the below sql select parameters,status from user_ind_partitions where partition_name = 'P_1' , I get parameters as null and status as usable.Am I getting 0 records because the parameters are set to null? How do I rebuild with the same parameters for the specific partition alone.

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PL/SQL :: CATSEARCH And Domain Index?

Oct 9, 2012

get a better understading of CATSEARCH and Domain Index in oracle

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Application Express :: Select List From Query With Row Level Where Clause?

May 10, 2013

I am trying to create a tabular form based on a SQL query, that has a query-based select list with a where clause that references a column in the originating SQL query.

The situation is, I have a table that stores client_id, source_id and build_id, lets call it client_source. I have a second table, build_source, that contains source_id and build_id, with a one to many relationship between the two (source_id of 1 could have build_id of 1-7).

Using a tabular form, I want to select the corresponding build_id to be used in client_source, but the select list must only contain the build_id's for that rows particular source_id.

Here is an example of the SQL source of my tabular form;

select
s.ROWID,
s.CLIENT_ID,
s.SOURCE_ID,
APEX_ITEM.SELECT_LIST_FROM_QUERY(1, s.BUILD_ID,
'select b.build_id display, b.build_id return from
build_source b where b.source_id = s.SOURCE_ID ') lst
from client_source s

... what I am trying to achieve is that the source_id fields in bold match. When the query is built this way I get an 'invalid identifier' Oracle error on s.SOURCE_ID at runtime.

Is there some special tags that need to be used to reference the outside column?I am running on Application Express 4.1.0.00.32, on a Oracle 10g release 10.2.0.4.0 database.

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Check Index Used In Oracle Select Query?

Mar 21, 2013

I have partitioned an oracle table and created Local Index for the Partitioned table .

Now i want to make sure that the Local index is being used when i perform select query on the Table partition.

How do i confirm that ? can i check the explain plan generted for the select query to confirm local index is being used ?

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SQL & PL/SQL :: Select Query Received In Unsorted Way Even Though Index Defined

Jul 5, 2010

I have a table with an index on the file_id column, defined in the same way in a test site and a production site.The only difference of these two tables is the amoun of data contained on it.the test site table contains about a million of records.the production table contains about 17 millions of records.

When I do a select on the table in test site, it returns the information in a sorted way.however, when I do the same select on the production site, the information is received in an unsorted way.

I assume that the index in production site might need to be rebuilt, because usually a big amount of data is extracted and deleted from the table and new information is inserted constantly.this situation does not occur in test site, information change is not very usual.

if rebuilt of index would actually to get the results on a sorted way, or the only way to get it is to add an "order by" statement in the query statement.

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Select Query Not Fetching Records In 11g?

May 10, 2013

I have a Select query which is not fetching records in 11g (11.2.0.2.0) but working fine in 10g (10.2.0.4.0). The query is as below.

--CREATE TABLE t1 (col1 NUMBER, col2 VARCHAR2 (15 CHAR), flag varchar2(1))

--insert into t1(col1, col2, flag) values(1, 'a', 'Y');
--insert into t1(col1, col2, flag) values(2, 'b', 'N');

SELECT *
FROM t1 x
WHERE col1 = 1 AND col2 = 'a' -------------- condition1
AND 0 = -------------- condition2
NVL (
(SELECT COUNT (1)
FROM t1 y
WHERE y.flag = 'N'
AND x.col1 = y.col1
AND x.col2 = y.col2),0)--=0

When remove NVL function or change the condition by having AND NVL(SELECT) =0 the query working fine.

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Fetch Records In Single Select Query And Display

Mar 15, 2011

I have 3 tables, Emp(Emp_id,emp_name),dept(dept_no,dept_name),emp_dept(emp_id,dept_no). Emp tabl ehas some 20 employes id who belongs to different departments.There are few employee who belongs to multiple departments as well. I want to fetch records of emp_id, emp_name, dept_no in the following format.

Name id dept_no
Ram 101 10
20
30
Ani 201 10
20

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SQL & PL/SQL :: Insert Records From A Select Query Into Temporary Table?

Mar 21, 2013

We are trying insert records from a select query into temporary table, some of the records is missing in the temporary table. The select statement is having multiple joins and union all which it little complex query. In simple terms the script contains 2 part 1st Part Insert in to temporary table 2nd part Select query with multiple joins, inline sub queries, unions and group by classes and conditions Eg. If we execute select statement alone it returns some count for example => 60000 After inserting into the temp table, in temp table the count is around 42000 why is the difference?

It is simple bulk inserts... insert in to temp table select * from xxx. also, there is no commit in between. The problem is all the records populated by the select statement are not inserted in to temp table. some records are not inserted.

Also, we had some other observation. It only happens in its 2nd execution and not its first run. Hope there might be some cache problem Even, we also did not believe that. We are wondering. In TOAD, we tested however at times it happens. In application jar file, after "insert in to temp select * from xxx" we take the i. record count of temp table and ii. record count of "select * from xxx" separately but both doesn't match. Match only at 1st time.

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SQL & PL/SQL :: Use Records Returned By Query As Column Names In A Select?

Jul 3, 2011

is it possible to use the records returned by a query as column names in a select query.

select (select column_name from dba_tab_cols where table_name='V_$DATABASE' and column_name like '%CONTROL%')
from v$database;
*
ERROR at line 1:
ORA-01427: single-row subquery returns more than one row

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SQL & PL/SQL :: Select First 40 Columns Without Giving All Column Names In Select Clause?

Mar 3, 2011

I have a table with around 80 columns. All i need is to select first 40 columns.

Is there any way to select first 40 columns without giving all the 40 Column Names in select clause.

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PL/SQL :: Reg - Index On Range In Where Clause?

Oct 29, 2013

I am creating a table where ID is an integer and the where clause will always be in range(for e.g between 200 and 400).

for best performance which index can i create on table such that query runs faster ?(a)clustered(b)non-clustered(c)unique(d)both clustered and non clustered

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SQL & PL/SQL :: How To Make Return All Records Except Duplicates

Mar 29, 2010

I have a table like this basic example:

ID Product Color Time-In
1 Apple Green May
2 Apple Red April
3 Pear Green May
4 Pear Green April
5 Plum Blue June

In SQL I want to return all 4 fields of the records except those records where Product and Color are identical - in that case it should return the latest (by name of month - preferred) or just the first it finds

So I should get these

1 Apple Green May
2 Apple Red April
3 Pear Green May
5 Plum Blue June

If I do a select distinct then I will only get those fields I test on (product and color), not the rest.

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PL/SQL :: Select Case When With More Than One Return Value?

Nov 6, 2012

I would like to know, if there is a solution under 10g for something like this

select case when "C" = 1
then
(select 1,2,3,4,5 from dual)
else
(select 6,7,8,9,0 from dual)
end
from dual,
(select 1 "C" from dual)

What I really need is the full result of (select 1,2,3,4,5 from dual) or (select 6,7,8,9,0 from dual) if a condition as a result of a different sql-statement is true or false. It doesn't matter if the solution uses "case when" or anything else.

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Performance Tuning :: Index With NVL / Query Is No Longer Using Index

Nov 19, 2010

I have a query which had a join:

a.c1=b.c1 and a.c2=@var

where @var is user supplied input at runtime...We had a index on a.c2 . The CBO would use this index to generate an opitimised query plan.We found some records from table "b" were dropping due to inner join. So we made a change in join. It'd be like

a.c1(+)=b.c1 and nvl(a.c2,@var)=@var

This query is no longer using the index, instead its doing a full table scan causing the query to slowdown.I have tried creating index on nvl(a.c2,'31-dec-9999')

But the CBO won't use it.Anyway to create index on this col so that full table scan can be avoided?

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PL/SQL :: Records Return Faster Inline Rather Than With Or Depends On Situation

Jan 15, 2013

I have been using With for many queries for readability. This most recent query seemed to be taking a bit longer to run and I didn't think much of it until a colleague showed me their version (totally different sql statement) which ran faster, but seemed more complicated and had more lines of code. I noticed that the other version did not use with. I moved the sql of the with into the join and the query ran faster dropping from 30 seconds to 798 msecs. The question is am I sacrificing speed for readability by using With, or it really depends on the overall sql statement.

Here is the query using WITH:

with prev as
(
select person_uid, id, name, academic_period,
case when enrolled_ind = 'Y' and registered_ind = 'N'  and student_status = 'AS' then 0 else 1 end as enreg_stat,

[Code]....

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SQL & PL/SQL :: Why Does SELECT DISTINCT Return Different Rows When Used With ORDER BY

Jan 4, 2013

nex lines showing SELECT DISTINCT return different rows when used with ORDER BY.

CREATE TABLE M1( ID_ NUMBER, A NUMBER, B NUMBER);
CREATE TABLE V1 ( A NUMBER, B2 NUMBER);
DELETE FROM M1;
DELETE FROM V1;
INSERT INTO M1 (ID_, A,B) VALUES (107, 5,1);
INSERT INTO M1 (ID_, A,B) VALUES (108, 11,1);
INSERT INTO M1 (ID_, A,B) VALUES (109, 17,1);

[code]....

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Performance Tuning :: Index Usage In Order By Clause On Nullable Column

Jan 28, 2011

I came across situation where a Nullable column is not using index for 'order by' clause. I added Not Null condition in the 'where' condition but it wasn't useful. I don't wanted to make composite index with not nullable column or with constant or modify column to 'Not Null'

So I carried out test cases and during which I found that in one case the sql statement does 'fast full scan' for data access but does not use index for 'order by' sorting

here are the steps

Initially I kept the column Nullable

SQL> create sequence s5;
Sequence created.

SQL> create table t5 as select s5.nextval id,a.* from dba_objects a where rownum<1001;
Table created.

SQL> set pages 100
SQL> select column_name,nullable from user_tab_columns where table_name='T5';

SQL> create index i5 on t5(id);
Index created.

SQL> exec dbms_stats.gather_table_stats(user,'T5',cascade=>true);
PL/SQL procedure successfully completed.
exit

SQL> alter session set events '10046 trace name context forever, level 12';

select *
from
t5 where id is not null order by id

call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ---------- ----------
Parse 1 0.00 0.00 0 0 0 0
Execute 1 0.00 0.00 0 0 0 0
Fetch 68 0.00 0.00 0 16 0 1000
------- ------ -------- ---------- ---------- ---------- ---------- ----------
total 70 0.01 0.00 0 16 0 1000

Misses in library cache during parse: 1
Optimizer mode: ALL_ROWS
Parsing user id: 5

Rows Row Source Operation
------- ---------------------------------------------------
1000 SORT ORDER BY (cr=16 pr=0 pw=0 time=4771 us)
1000 TABLE ACCESS FULL T5 (cr=16 pr=0 pw=0 time=1157 us)

Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
SQL*Net message to client 68 0.00 0.00
SQL*Net message from client 68 49.49 49.72
********************************************************************************

select /*+ index(t i5) */ *
from
t5 t where id is not null order by id

call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ---------- ----------
Parse 1 0.00 0.00 0 0 0 0
Execute 1 0.00 0.00 0 0 0 0
Fetch 68 0.00 0.00 0 150 0 1000
------- ------ -------- ---------- ---------- ---------- ---------- ----------
total 70 0.00 0.00 0 150 0 1000

Misses in library cache during parse: 1
Optimizer mode: ALL_ROWS
Parsing user id: 5

Rows Row Source Operation
------- ---------------------------------------------------
1000 TABLE ACCESS BY INDEX ROWID T5 (cr=150 pr=0 pw=0 time=5167 us)
1000 INDEX FULL SCAN I5 (cr=71 pr=0 pw=0 time=3141 us)(object id 4673065)

Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
SQL*Net message to client 69 0.00 0.00
SQL*Net message from client 69 22.89 28.04

Now I modified the 'id' column to Not Null

SQL> alter table t5 modify id not null;

SQL> set pages 100
SQL> select column_name,nullable from user_tab_columns where table_name='T5';

COLUMN_NAME N
------------------------------ -
ID N
OWNER Y
OBJECT_NAME Y
SUBOBJECT_NAME Y
OBJECT_ID Y
DATA_OBJECT_ID Y
OBJECT_TYPE Y
CREATED Y
LAST_DDL_TIME Y
TIMESTAMP Y
STATUS Y
TEMPORARY Y
GENERATED Y
SECONDARY Y

14 rows selected.

select *
from
t5 order by id

call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ---------- ----------
Parse 1 0.00 0.01 0 29 0 0
Execute 1 0.00 0.00 0 0 0 0
Fetch 68 0.00 0.00 0 16 0 1000
------- ------ -------- ---------- ---------- ---------- ---------- ----------
total 70 0.01 0.01 0 45 0 1000

Misses in library cache during parse: 1
Optimizer mode: ALL_ROWS
Parsing user id: 5

Rows Row Source Operation
------- ---------------------------------------------------
1000 SORT ORDER BY (cr=16 pr=0 pw=0 time=2398 us)
1000 TABLE ACCESS FULL T5 (cr=16 pr=0 pw=0 time=1152 us)

Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
SQL*Net message to client 68 0.00 0.00
SQL*Net message from client 68 37.74 37.91
********************************************************************************

select /*+ index(t i5) */ *
from
t5 t order by id

call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ---------- ----------
Parse 1 0.00 0.00 0 0 0 0
Execute 1 0.00 0.00 0 0 0 0
Fetch 68 0.00 0.00 0 150 0 1000
------- ------ -------- ---------- ---------- ---------- ---------- ----------
total 70 0.00 0.00 0 150 0 1000

Misses in library cache during parse: 1
Optimizer mode: ALL_ROWS
Parsing user id: 5

Rows Row Source Operation
------- ---------------------------------------------------
1000 TABLE ACCESS BY INDEX ROWID T5 (cr=150 pr=0 pw=0 time=4166 us)
1000 INDEX FULL SCAN I5 (cr=71 pr=0 pw=0 time=3142 us)(object id 4673065)

Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
SQL*Net message to client 68 0.00 0.00
SQL*Net message from client 68 8.28 8.45

select id
from
t5 order by id

call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ---------- ----------
Parse 1 0.00 0.00 0 0 0 0
Execute 1 0.00 0.00 0 0 0 0
Fetch 68 0.00 0.00 0 6 0 1000
------- ------ -------- ---------- ---------- ---------- ---------- ----------
total 70 0.00 0.00 0 6 0 1000

Misses in library cache during parse: 1
Optimizer mode: ALL_ROWS
Parsing user id: 5

Rows Row Source Operation
------- ---------------------------------------------------
1000 SORT ORDER BY (cr=6 pr=0 pw=0 time=1342 us)
1000 INDEX FAST FULL SCAN I5 (cr=6 pr=0 pw=0 time=1093 us)(object id 4673065)

Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
SQL*Net message to client 68 0.00 0.00
SQL*Net message from client 68 1.88 1.89

Questions are

1) Why adding 'where id is not null wasn't enough for the index to get used in 'order by'?
2) While we got 'fast full scan' why index wasn't used for 'order by' clause?
3) Do we need the indexed column in where clause for being used in 'order by clause' too?
4) Do we need 'order by' clause if we are selecting only the indexed column with sequence generated values?

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SQL & PL/SQL :: Select Clause With Condition

Jul 22, 2010

Based on same salary i need to retrieve data like below whose hire date should be within a week (7days). The table may have 200000 records.

empno Hiredate salary
1234 03-JUN-10 3000
1354 21-MAY-10 3000
1834 01-JUL-10 3000
1954 08-JUL-10 3000

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SQL & PL/SQL :: Getting Different Column Value For Every Select Clause

Nov 28, 2011

I have a requirement of getting different column value for every select clause. my selection is so much freequent. For example.. 10 Select statement /second.

But when if I am running more than select in a second its is showing the same record which is last dequeue.and also tried with RANDOM(). how to get different value for every statement which is running in single point of time.

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SQL & PL/SQL :: Call Function With Row Type Return In Oracle Select Statement

Jul 3, 2012

How to call a function with a row type return in an Oracle select statement.

For e.g. :

If I had this function with a rowtype return:
------------------------------
create function abc
return xyz%rowtype
is
rec xyz%rowtype;
begin
select * into rec from xyz where col1 = n;
return rec;
end;
--------------------------------
How could I use this in a select clause, as there is a multi column return by the function ?

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Sequence In Select Ignoring Where Clause?

Sep 28, 2011

I want to use a sequence to populate a field for my insert statement. Should be simple right?

So here is an example
insert into sometable ( seq, else)
select
myseq.nextval
,somethingelse
from sometable@dblink
where somethingelse = 10

now if i remove my sequence call for nextval it correctly uses the where clause but when I use the sequence in the select statement it is ignoring the where clause completely. I've never had this issue before...is this because i'm using a dblink now?

I'm using toad 10 on oracle 11g in multi-schema environment.

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