Subquery in IN clause of an select statement

Hi friends,
The Subquery in IN clause of an select statement take long time , is there any alternate ??
>select * from oudata.SURVEY_USER_ANSWERS
>where user_id in (select user_id from oudata.SURVEY_USERS where trunc(course_start_date) <'01-Jun-2007');
thnaks,
raj
Edited by: infant_raj on May 28, 2009 12:09 AM

infant_raj wrote:
Hi friends,
The Subquery in IN clause of an select statement take long time , is there any alternate ??
select * from oudata.SURVEY_USER_ANSWERS
where user_id in (select user_id from oudata.SURVEY_USERS where trunc(course_start_date) <'01-Jun-2007');
No database version specified?
No table structures/indexes given?
No indication of the cardinality, selectivity, skew of the data being queried.
Have you got a function based index for "trunc(course_start_date)"?
Why are you not specifying your comparison date as a DATE datatype rather than relying on implicit conversion? i.e. it should be "to_date('01-Jun-2007','DD-MON-YYYY')"
Have statistics been gathered on the data
[How to post a SQL statement tuning request|http://forums.oracle.com/forums/thread.jspa?threadID=863295&tstart=0]
[When your query takes too long...|http://forums.oracle.com/forums/thread.jspa?messageID=1812597#1812597]

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HOW CAN I USE MULTIPLE INNERJOINS IN A SINGLE SELECT STATEMENT?

HI,
I AM SHABEER AHMED,
I AM GETTING AN ERROR WHILE I ATTEMPT TO EXECUTE A SELECT STATEMENT WITH MULTIPLE INNER JOINS . BECOZ I WANT TO FETCH ITEM DATA, PARTNER DATA BASED ON HEADER DATA .
THEN OF COURSE I HAVE FETCH DATA FROM VBAK VBAP VBKD SO LZ SEND ME THE SOLUTION.
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Hi,
1.Just see this:
SELECT * INTO CORRESPONDING FIELD OF TABLE itab
FROM t1 INNER JOIN t2 ON t1f4 EQ t2f4
INNER JOIN t3 ON t2f5 EQ t3f5 AND
t2f6 EQ t3f6 AND
t2f7 EQ t3f7.
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FOR ALL ENTRIES
Tabular Conditions
The WHERE clause of the SELECT statement has a special variant that allows you to derive conditions from the lines and columns of an internal table:
SELECT ... FOR ALL ENTRIES IN <itab> WHERE <cond> ...
<cond> may be formulated as described above. If you specify a field of the internal table <itab> as an operand in a condition, you address all lines of the internal table. The comparison is then performed for each line of the internal table. For each line, the system selects the lines from the database table that satisfy the condition. The result set of the SELECT statement is the union of the individual selections for each line of the internal table. Duplicate lines are automatically eliminated from the result set. If <itab> is empty, the addition FOR ALL ENTRIES is disregarded, and all entries are read.
The internal table <itab> must have a structured line type, and each field that occurs in the condition <cond> must be compatible with the column of the database with which it is compared. Do not use the operators LIKE, BETWEEN, and IN in comparisons using internal table fields. You may not use the ORDER BY clause in the same SELECT statement.
You can use the option FOR ALL ENTRIES to replace nested select loops by operations on internal tables. This can significantly improve the performance for large sets of selected data.
Example for ALL ENTRIES
DATA: TAB_SPFLI TYPE TABLE OF SPFLI,
TAB_SFLIGHT TYPE SORTED TABLE OF SFLIGHT
WITH UNIQUE KEY TABLE LINE,
WA LIKE LINE OF TAB_SFLIGHT.
SELECT CARRID CONNID
INTO CORRESPONDING FIELDS OF TABLE TAB_SPFLI
FROM SPFLI
WHERE CITYFROM = 'NEW YORK'.
SELECT CARRID CONNID FLDATE
INTO CORRESPONDING FIELDS OF TABLE TAB_SFLIGHT
FROM SFLIGHT
FOR ALL ENTRIES IN TAB_SPFLI
WHERE CARRID = TAB_SPFLI-CARRID AND
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LOOP AT TAB_SFLIGHT INTO WA.
AT NEW CONNID.
WRITE: / WA-CARRID, WA-CONNID.
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INNER JOINS
In a relational database, you normally need to read data simultaneously from more than one database table into an application program. You can read from more than one table in a single SELECT statement, such that the data in the tables all has to meet the same conditions, using the following join expression:
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REPORT demo_select_inner_join.
DATA: BEGIN OF wa,
carrid TYPE spfli-carrid,
connid TYPE spfli-connid,
fldate TYPE sflight-fldate,
bookid TYPE sbook-bookid,
END OF wa,
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WITH UNIQUE KEY carrid connid fldate bookid.
SELECT pcarrid pconnid ffldate bbookid
INTO CORRESPONDING FIELDS OF TABLE itab
FROM ( ( spfli AS p
INNER JOIN sflight AS f ON pcarrid = fcarrid AND
pconnid = fconnid )
INNER JOIN sbook AS b ON bcarrid = fcarrid AND
bconnid = fconnid AND
bfldate = ffldate )
WHERE p~cityfrom = 'FRANKFURT' AND
p~cityto = 'NEW YORK' AND
fseatsmax > fseatsocc.
LOOP AT itab INTO wa.
AT NEW fldate.
WRITE: / wa-carrid, wa-connid, wa-fldate.
ENDAT.
WRITE / wa-bookid.
ENDLOOP.
Regards,
Shiva Kumar(Reward if helpful).

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I am currently developing a java servlet<using tomcat 4.x> which allows me to use select statement to retrieve results from the Microsoft SQL Server 2000 database. I am using a simple form to get the parameter for querying. The main problem i'm facing is that there are chinese information in the SQL database, but i can't retrieve it through the sql statement with the chinese characters input<thru the form with the help of NJ STAR>in the WHERE condition. When i execute the statement, it returns me no results even though the rows are present in the database.
Does anyone have the solution to using chinese words in the WHERE clause of the select statement to retrieve results with columns which contains chinese characters? Please help me. Thanks everyone. :)
PS: when i cut and paste those characters in the sql database and paste onto java.. it is ??? in questionmarks.. but when i paste them into excel 2000.. its shown as chinese chars again..
please heelppp~~

Greetings,
PS: when i cut and paste those characters in thesql
database and paste onto java.. it is ??? in
questionmarks.. but when i paste them into excelThis is why the SELECT is not returning any results.
You need to set the character encoding set on your
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docs and also to
$JDK_DOCS/guide/intl/encoding.doc.html in your JDK
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2000.. its shown as chinese chars again..Because Office programs are performing the same kind
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please heelppp~~Regards,
Tony "Vee Schade" Cookis it possible for you to show me some coding examples? i don't really understand what is to be done in order to set the char set and what does it really do.. tried reading up but still dun understand.. :(
pardon my shallow knowledge of java..
ok..
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//prototype of Search engine...
//workable for GBK input and output...
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import java.io.OutputStream;
import java.io.IOException;
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import javax.servlet.ServletException;
import java.util.*;
import java.sql.*;
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 dbTitle = new String(dbTitle.getBytes("ISO-8859-1"),"GBK");
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 String query = "SELECT * FROM MusicDetails WHERE "+type+" = '"+searchQuery+"'";
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 while (rs.next()) {
 String artist = rs.getString("Artist");
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with the above servlet i created, i can search out the data in the database which i've inserted through the insert statement. I still can't search for things i've keyed into the database directly using NJStar..
thank you so much for helping.. really hope any one else who knows the answer to this will reply too... thank you all so much...
-KK

Order of records in o/p of select statement

Hi all
I have doubt regarding the select statement. I need to execute a select statement (with out any order ie with out "order by") which searchs a table. I want to know whether in any
circumstances the order of the records of the select statement is different.
sample select statement which I need to execute
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(provided same query same, table,)
can u plz quote the link to get more information
regards
Renjith

Hi,
YES, you can
Do Order By Without Using Order By Clause
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Solution 1:
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from Emp
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Hope this will solve your problem.
Any Comment on this, any body.
Thanks and Regards
There is always a solution to the problem, And if there is no solution of a problem then problem is not a problem.

Sql Error in Select statement when doing subquery

Hi,
I am trying to see what the error is in the subquery part of the select statement.
Subquery should be fetching the safety_stock_quantity based on the MAX(effectivity_date).
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(C) a Constant, or
(D) something that Depends entirely on the above. (For example, if you "GROUP BY TRUNC(dt)", you can "SELECT TO_CHAR (TRUNC(dt), 'Mon-DD')").
There's a GROUP BY clause in your main query, so every item in the main SELECT clause must be one of the above. The last item, the unnamed scalar sub-query, is none of the above.
How can you fix this problem? That depends on your data, the results you want, and perhaps on your Oracle version. If you'd like help, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only) from all tables involved. Also post the results you want from that data, and an explanation of how you get those results from that data, with specific examples.
Always say which version of Oracle you're using.
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How to model in OWB if you have a subquery in your select statement? (11.2)

Which operator (is it the Table operator) to use if I have a subquery as part of my select statement? (The way I do it works, but is not elegant. What I do is create a table for the subquery and than join that with the other sources to point to my target.) But, would appreciate the best way with OWB's features.
Here is the entire SQL (including the subquery):
SELECT to_numbe (null), course_id
at.book, lp.NAME,
(select b.pricing from qp_pricing_attributes b
where b.list_id = ll.list_id and b.product = at.product) sign,
ll.operand AS price, lhb.comments
FROM
pricing_attribs at,
list_lines ll,
list_h lp,
list_b lhb
WHERE 1 = 1
and ll.list_line_id = atrib.list_line_id
AND ll.list_header_id = lp.list_header_id
AND lp.list_header_id = lhb.list_header_id
Thanks you.

Hi
Doesn't need to be a table in the target. Let's take a very simple example, let's say you wanted to do the following;
select ename,(select dname from dept d where d.deptno=e.deptno) from emp e
Then DEPT is your lookup table and EMP is your driving table.
1. Add EMP on to the canvas.
2. Add in lookup operator
3. Bind lookup to DEPT
4. Hit finish
5. Map EMP.DEPT to DEPT.INGRP1 (the lookup operator)
6. Edit lookup operator, on Lookup Conditions tab set DEPTNO for lookup column, and DEPTNO for input attribute
7. Lookup complete now
You can add in a target table operator and map from the source EMP table and the output attributes of the lookup operator. you can change step 4 to carry on through wizard and define lookup, but I have chosen to do 5, to automatically get the names and datatypes of the inputs. There are lot of other options now in 11gR2 in the lookup.
Hope this makes sense.
Cheers
David

How build where clause in select statement in FM for Virtual provider

Hi
I looking for example of FM for Virtual provider where I find code how assign to select statement "where" clause value from query variable.
In following code how build t_r_custtype range and how assign value to it.
CODE********************************
TYPE-POOLS: abap.
initialize
CLEAR: e_t_data, e_t_msg.
this is specific to infoprovider VIRTPROV
CHECK i_infoprov = 'VIRTPROV'.
FIELD-SYMBOLS: <l_s_sbook> TYPE sbook,
 <l_s_data> TYPE ANY.
DATA: l_t_component TYPE abap_compdescr_tab,
 l_t_sbook TYPE TABLE OF sbook.
initialize
CLEAR e_t_data.
Data selection / only Business Customer
SELECT * FROM sbook
 INTO CORRESPONDING FIELDS OF TABLE l_t_sbook
 WHERE custtype in t_r_custtype.
ENDCODE********************************
Thanks a lot
Adam

Hello,
Would you like fill the ranges in Customer exit for BEx..?
If Yes. please refer the attachment for the whole code...
"Sample code in Customer Exit in BEx"
IF i_step = 2.
CASE i_vnam.
WHEN 'ZDAY_CX'.
LOOP AT i_t_var_range INTO loc_var_range WHERE vnam = 'ZDAY_IN'.
CLEAR: l_s_range.
ZT_DT1 = loc_var_range-low.
ZT_DT2 = loc_var_range-HIGH.
CALL FUNCTION 'DATE_CREATE'
EXPORTING
ANZAHL_JAHRE = 0
ANZAHL_KALTAGE = 0
ANZAHL_MONATE = '-1'
ANZAHL_TAGE = 0
DATUM_EIN = ZT_DT1
DATUM_EIN_ULT = ' '
ULTIMO_SETZEN = ' '
IMPORTING
DATUM_AUS = ZFIDAY .
E_TT =
E_ULTKZ =
CALL FUNCTION 'DATE_CREATE'
EXPORTING
ANZAHL_JAHRE = 0
ANZAHL_KALTAGE = 0
ANZAHL_MONATE = '-1'
ANZAHL_TAGE = 0
DATUM_EIN = ZT_DT2
DATUM_EIN_ULT = ' '
ULTIMO_SETZEN = ' '
IMPORTING
DATUM_AUS = ZLSDAY.
E_TT =
E_ULTKZ =
l_s_range-low = ZFIDAY .
l_s_range-high = ZLSDAY .
l_s_range-sign = 'I'.
l_s_range-opt = 'EQ'.
APPEND l_s_range TO e_t_range.
ENDLOOP.
*****************************************End*************************************
**To get the From date (For Text Variable) as per the user input date interval range**
WHEN 'ZR_S'.
LOOP AT i_t_var_range INTO loc_var_range WHERE vnam = 'ZDAY_IN'.
CLEAR: l_s_range.
ZT_DT1 = loc_var_range-low.
ZT_DT2 = loc_var_range-HIGH.
CALL FUNCTION 'DATE_CREATE'
EXPORTING
ANZAHL_JAHRE = 0
ANZAHL_KALTAGE = 0
ANZAHL_MONATE = 0
ANZAHL_TAGE = 0
DATUM_EIN = ZT_DT1
DATUM_EIN_ULT = ' '
ULTIMO_SETZEN = ' '
IMPORTING
DATUM_AUS = ZFIDAY .
E_TT =
E_ULTKZ =
l_s_range-low0(2) = ZFIDAY6(2).
l_s_range-low+2(1) = '.'.
l_s_range-low3(2) = ZFIDAY4(2).
l_s_range-low+5(1) ='.'.
l_s_range-low6(4) = ZFIDAY0(4).
l_s_range-sign = 'I'.
l_s_range-opt = 'EQ'.
APPEND l_s_range TO e_t_range.
ENDLOOP.
*****************************************End*************************************
Please let me know if any clarification required..
Rinku..

Subquery in IN clause of an select statement

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