LIKE in where clause

Hi Folks,
Could you please give some resolution to this query i am trying....
I am trying to use LIKE in WHERE CLAUSE comparing a variable (z_acct). I want to know how to use it like u2018%valueof(l_acct)u2019 after LIKE clauseu2026..
REPORT ZSAM.
data : z_acct(18) type c value '0000000101'.
data: l_knbk TYPE STANDARD TABLE OF knbk with header line .
SELECT * FROM KNBK INTO CORRESPONDING FIELDS OF l_knbk
WHERE bankn like z_acct.
write l_knbk-bankn.
endselect.
Please advice.
S

Hi,
select name from trdir into table it_trdir
where ( name like 'SAP%' or name like '%SAP' ).
Thanks,
Krishna...

Similar Messages

Dynamic IF statement...like dynamic where clause...

Hi,
I know how to do a dynamic where clause by putting (varname) like shown below -
select * from cust_mstr where (varname).
Can I do it something like this in IF statement.
if (varname).
endif.
The varname will have different conditions.
Your help will be greately appreciated.
Regards,
Sume

Hello Sume,
I would try to use an approach using ranges:
DATA:
gv_material TYPE matnr.
gv_material = '292-392-392-202'.
IF gv_material = '292-392-392-202'.
WRITE: / `Static check:`, gv_material, `matches!`.
ELSE.
WRITE: / `Static check:`, gv_material, `doesn't match!`.
ENDIF.
PERFORM dynamic_check
            USING
               gv_material
               'I'
               'EQ'
               '292-392-392-202'
               space.
PERFORM dynamic_check
            USING
               gv_material
               'I'
               'CP'
               '*292*'
               space.
PERFORM dynamic_check
            USING
               gv_material
               'I'
               'CP'
               '*ABC*'
               space.
*&      Form dynamic_check
FORM dynamic_check USING pv_value    TYPE clike
                         pv_sign     TYPE ddsign
                         pv_option   TYPE ddoption
                         pv_low      TYPE string
                         pv_high     TYPE string.
DATA lr_range TYPE RANGE OF string.
DATA ls_range LIKE LINE OF lr_range.
ls_range-sign   = pv_sign.
ls_range-option = pv_option.
ls_range-low    = pv_low.
ls_range-high   = pv_high.
APPEND ls_range TO lr_range.
IF pv_value IN lr_range.
    WRITE: / `Dynamic check matches: `, pv_value, ls_range-sign, ls_range-option, ls_range-low, ls_range-high.
ELSE.
    WRITE: / `Dynamic check doesn't match:`, pv_value, ls_range-sign, ls_range-option, ls_range-low, ls_range-high.
ENDIF.
ENDFORM.                    "dynamic_check
For values of SIGN and OPTION check the values of the domains used in the data elements of the parameters of form dynamic_check.
Output is like:
Static check:                292-392-392-202    matches!
Dynamic check matches:       292-392-392-202    I EQ 292-392-392-202
Dynamic check matches:       292-392-392-202    I CP *292*
Dynamic check doesn't match: 292-392-392-202    I CP *ABC*
Edited by: Alejiandro Sensejl on Aug 11, 2010 8:23 PM:
Unfortunately I don't know why the code-tag isn't working, I sent a mail to SCN tech-team about this... Sorry, but you have to copy the code somehow to have a look at it

Use of LIKE in where clause of select statement for multiple records

Hi Experts,
I have a account number field which is uploaded from a file. Now this account numbers uploaded does not match fully with sap table account numbers but it contains all of the numbers provided in the file mostly in the upright positions.
For example in file we have account number as 2ARS1 while in sap table the value is 002ARS1.
And i want to fetch data from sap table based on account number uploaded. So, i am trying to use LIKE with for all entries but its not working as mentioned below but LIKE is not working with FOR ALL ENTRIES.
data : begin of t_dda occurs 0,
        dda(19) type c,
       end of t_dda.
data : begin of t_bukrs occurs 0,
        bukrs type t012k-bukrs,
       end of t_bukrs.
data : dda type t012k-bankn,
       w_dda type t012k-bankn.
CONCATENATE '%'
                         '2ARS1'
                 INTO W_DDA.
MOVE W_DDA TO T_DDA-DDA.
APPEND T_DDA.
CLEAR T_DDA.
free t_bukrs.
SELECT BUKRS
FROM T012K
into TABLE t_bukrs
    for all entries in t_dda
WHERE BANKN like t_dda-dda.
Can anybody suggest what should i use to get the data for multiple account numbers using one select statement only instead on using SELECT UP TO 1 ROWS in LOOP....ENDLOOP ?
Thanks in advance,
Akash

Hi,
yes, For All entries won't work for LIKE with '% '.
I think the other alternative is go for Native SQL by writing sub-query
sample code is here:
data: begin of i_mara occurs 0,
          matnr like mara-matnr,
          matkl like mara-matkl,
       end of i_mara.
exec sql.
select matnr, matkl from mara where matnr in (select matnr from marc) and matnr like '%ma' into :i_mara
endexec.
loop at i_mara.
write:/ i_mara-matnr, i_mara-matkl.
endloop.
hope u got it.
regards
Mahesh
Edited by: Mahesh Reddy on Jan 21, 2009 2:32 PM

Referencing Aggregated Column Value in Where Clause

Hello -
I'm trying to determine how I can accomplish the following in the most straightforward, efficient way.
Among other things, I'm selecting the following value from my table:
max(received_date) as last_received_dateI also need to evaluate the "last_received_date" value as a condition in my where clause. However, I can't reference my aliased "last_received_date" column value, and when I try to evaluate max(received_date) in the where clause, I get the "group function is not allowed here" error.
Does anyone know of a good workaround?
Thanks,
Christine

Hi,
Column aliases can be used in the ORDER BY clause: aside from that, they cannot be used in the same query where they are defined. The workarounds are
(a) define the alias in a sub-query, and use it in a super-query, like Someoneelse did, or
(b) repeat the aliased expression, as in the HAVING-clause, below.
Aggregate functions are computed after the WHERE-clause. (That explains why you can do things like
SELECT MAX (received_date) last_received_date_2008
FROM    table_x
WHERE   TO_CHAR (received_date, 'YYYY') = '2008';).
The HAVING-clause is like the WHERE-clause, but it is applied after the aggregate functions are computed, e.g.
SELECT    deptno
,         MAX (recieved_date) AS last_received_date
FROM      table_x
GROUP BY deptno
HAVING    MAX (received_date)    > SYSDATE - 7   -- Only show deptartments with activity in the last week
;

How to set Where clause in the View Object of the MessageChoice ?

Hi,
How to set Where clause in the View Object of the
MessageChoice ?
Example:
<bc4j:rootAppModuleDef name="EdEscolaCampusView1AppModule"
definition="ed00050.Ed00050Module"
releaseMode="stateful" >
<bc4j:viewObjectDef name="EdEscolaCampusView1" >
<bc4j:rowDef name="CreateEdEscolaCampusView1" autoCreate="true" >
<bc4j:propertyKey name="key" />
</bc4j:rowDef>
</bc4j:viewObjectDef>
<bc4j:viewObjectDef name="ListaTipLocalView1"
rangeSize="9999">
</bc4j:viewObjectDef>
</bc4j:rootAppModuleDef>
</bc4j:registryDef>
messageChoice declaration:
<bc4j:messageChoice name="SeqTipoLocalCampus"
attrName="SeqTipoLocalCampus"
prompt="Local do Campus">
<contents>
<bc4j:optionList attrName="SeqTipoBasico"
textAttrName="NomTipoBasico"
voName="ListaTipLocalView1"/>
</contents>
</bc4j:messageChoice>
I would like set where clause of ViewObject, with dinamic parameters (using attribute1 = :1), before populate messageChoice.
thanks...
Danilo

Hi Andy,
I try set a where clause using the message:
Set where Clause parameter using UIX , but my UIX Page have 2 messageChoice's of different ViewObject's, then I need implement this Java Class:
//Nome da Package da Tela Detail
package br.com.siadem.siaed.ed00050;
// Importa as Bibliotecas necessárias
import oracle.jbo.ViewObject;
import oracle.jbo.ApplicationModule;
import oracle.jbo.client.Configuration;
import oracle.cabo.servlet.BajaContext;
import oracle.cabo.servlet.Page;
import oracle.cabo.servlet.event.PageEvent;
import oracle.cabo.servlet.event.EventResult;
import oracle.cabo.data.jbo.servlet.bind.*;
import oracle.cabo.ui.data.BoundValue;
import oracle.cabo.ui.data.DataBoundValue;
import javax.servlet.http.HttpServletRequest;
import br.com.siadem.siaed.util.*;
import javax.servlet.http.Cookie;
import oracle.cabo.data.jbo.def.NestedAppModuleDef;
import oracle.cabo.data.jbo.def.ViewObjectDef;
import oracle.cabo.data.jbo.def.AppModuleDef;
// Classe que configura os parametros para a execução da Query,
// utilizando variáveis de Sessao
public class FunPreQueryLista
public static EventResult FunConfiguraQuery(BajaContext context, Page page, PageEvent event) throws Throwable
// TrataDadosSessao - Classe utilizada para retornar os valores das variáveis de sessão genéricas
// Ex: CodCliente, CodMunicipio etc...
TrataDadosSessao varDadosSessao = new TrataDadosSessao();
// 1o. Parametro Configurado - Através da classe TrataDadosSessao, utilizando um método Get
// <alterar>
String valor1 = varDadosSessao.getCodCliente();
String valor2 = varDadosSessao.getCodMunicipio();
//Cria o objeto que retorna o ApplicationModule
ApplicationModule am = ServletBindingUtils.getApplicationModule(context);
// Início das Configurações da Query da Lista
//Cria o objeto que retorna o view object da lista desejada
//alterar
ViewObject TipoLocal = am.findViewObject("ListaTipoLocalView1");
//Configuração dos parametros definidos na query do view Object
//alterar
TipoLocal.setWhereClauseParam(0,valor1);
TipoLocal.setWhereClauseParam(1,valor2);
// Executa a Query
TipoLocal.executeQuery();
// Fim das Configurações da Query da Lista
// Início das Configurações da Query da Lista
//Cria o objeto que retorna o view object da lista desejada
//alterar
ViewObject TipoDestLixo = am.findViewObject("ListaDestinoLixoView1");
//Configuração dos parametros definidos na query do view Object
//alterar
TipoDestLixo.setWhereClauseParam(0,valor1);
TipoDestLixo.setWhereClauseParam(1,valor2);
// Executa a Query
TipoDestLixo.executeQuery();
// Fim das Configurações da Query da Lista
// Retorna o Resultado para a Página
return new EventResult(page);
The code works very well...
And, I'm sorry for my two repost's in UIX Forum about this in a few time.
Thank very much...
Danilo

Syntax in "Where" clause

can you give me an example with operator Like in Where clause.
I need to do something like this:
Select Column from Table where Column like "request.getParameter("value")
Thanks.

Thanks, but I need to compare using "like " and "% Value %"
How about synatx in this case:
Select column1, column2 from table where column1 like '%request.getparameter("value1")%' or
column2 like '%request.getparameter("value2")%' and ...

Date where Clause

I would like a where clause
where DataAssigned between 10/1/2012 and 09/1/2013
My DataAssigned Column is date and min format like "2013-05-20 10:56:52.0000"
simam

You can just so this
Select * from yourtable where datecolumn between '20120110' and dateadd(s,-1,dateadd(day,1,'20130109'))
The dates are passing here in ISO format and this is a best practice when dealing with dates, Becuase 10/1/2012
in India (Asian Countries) is interpreted as 10th jan where as in interpreted as USA it is 1st of October.
Satheesh
My Blog |
How to ask questions in technical forum

Like condition in the where clause.

Dear All,
I have created a new form using a datablock wizard with one table.
Now i placed a text box and a button in the same form. I will be entering the value in the text box and based up the condition in the where clause of the datablock property i am restricting the values where the column name is thetext box value.
Now my problem is i need to give a string value in the text box and the datablokc has to populate based up the like condtion. I dont know the syntax how to give like condition in the where clause of the property pallet.
Please help me in this.
Thanks in advance.
Cheers,
Raju

Maybe try this ...
Create a button to query the block :
In the WHEN-BUTTON-PRESSED-Trigger enter :
DECLARE
    v_block_def_where         VARCHAR2(255)     := '1 = 1';
BEGIN
    v_block_def_where := v_block_def_where || ' AND NAME_OF_YOUR_TABLE_COLUMN LIKE ''' || '%' || :NAME_OF_YOUR_BLOCK.SEARCH_ITEM || '%' || '''';
    SET_BLOCK_PROPERTY('NAME_OF_YOUR_BLOCK', DEFAULT_WHERE, v_block_def_where);
    GO_BLOCK('NAME_OF_YOUR_BLOCK');
    EXECUTE_QUERY;
END;

Using where clause with like

Hi all,
im trying to set a block default where clause in the pre-query trigger of my block "customer_settlement" , to query the records that exist in a customers table like this, where the customer_name is variable based on the value entered by the user in enter-query mode before hitting the F8 key , the statement is :
set_block_property( 'customer_settlement' , default_where ,
' fk_cust_code in ( select customer_code from customers where customer_name like %' || :customer_settlement.customer_name ||'% )' );
the query doesnt work and giving me an error " unable to perform query" , notice that :customer_settlement.customer_name is an item in the block , the user change it and would like to query upon it , and its not a base table item on customer_settlement block its on customers table only . I tried all combinations of '%' and || but it seems that oracle can't see the value In the customer_name field.
any help is highly thanked.
im using Oracle form 9.0.4 and Oracle 10g Db.
Regards,
IKQ

Hi,
does this work ?
set_block_property( 'customer_settlement' , default_where ,
' fk_cust_code in ( select customer_code from customers where customer_name like '''%' || :customer_settlement.customer_name ||'%''' )' );
Frank

Index usage in depending on where clause changes.

Hello Friends,
I need your help for one issue.
I have one query , which is using two table Say T1 and T2, where C1 is common column using which both are joined.
C1 is primary key in T1, but no index available in T2 for C1. T1C2 is the column which we want to select.
(Note that Either of table can be a Master table)
Now see the query:
Select T1C2
From T1, T2
where T2.C1 = T1.C1
Here where clause may have other conditions and From clause may have others tables as per requirements.
I want to know that, if, I change the query like following to let my query use the available index of T1.C1.
Select T1C2
from T1, T2
where T1.C1 = T2.C1
Then, Will the query use the available index of T1. and Will i get better performance. Even a little improvement in performance may help me a lot as this kind of query is being used within a where loop (so it is going to be executed multiple times).
Please advise on this..
Regards,
Dipali..

Hi,
18:43:17 rel15_real_p>create table t1(c1 number primary key, c2 number);
Table created.
18:43:26 rel15_real_p>create table t2(c1 number, c2 number);
18:45:08 rel15_real_p>
18:45:09 rel15_real_p>begin
18:45:09   2 for i in 1..100
18:45:09   3 loop
18:45:09   4        insert into t1(c1,c2) values (i,i+100);
18:45:09   5 end loop;
18:45:09   6 commit;
18:45:09   7 end;
18:45:09   8 /
PL/SQL procedure successfully completed.
18:45:09 rel15_real_p>
18:45:09 rel15_real_p>
18:45:09 rel15_real_p>begin
18:45:09   2 for i in 1..100
18:45:09   3 loop
18:45:09   4        insert into t2(c1,c2) values (i,i+200);
18:45:09   5 end loop;
18:45:09   6 commit;
18:45:09   7 end;
18:45:09   8 /
18:45:23 rel15_real_p>select count(*) from t1;
COUNT(*)
       100
18:45:30 rel15_real_p>select count(*) from t2;
COUNT(*)
       100
18:45:49 rel15_real_p>select index_name,index_type from user_indexes where table
_name='T1';
INDEX_NAME                     INDEX_TYPE
SYS_C0013059                   NORMAL
18:48:21 rel15_real_p>set autotrace on
18:52:25 rel15_real_p>Select T1.C2
18:52:29   2 From T1, T2
18:52:29   3 where T2.C1 = T1.C1
18:52:29   4 /
        C2
       101
       102
       103
       104
       105
        C2
       200
100 rows selected.
Execution Plan
   0      SELECT STATEMENT Optimizer=ALL_ROWS (Cost=7 Card=100 Bytes=
          900)
   1    0   HASH JOIN (Cost=7 Card=100 Bytes=3900)
   2    1     TABLE ACCESS (FULL) OF 'T1' (TABLE) (Cost=3 Card=100 By
          es=2600)
   3    1     TABLE ACCESS (FULL) OF 'T2' (TABLE) (Cost=3 Card=100 By
          es=1300)
Statistics
          0 recursive calls
          0 db block gets
         21 consistent gets
          0 physical reads
          0 redo size
       1393 bytes sent via SQL*Net to client
        562 bytes received via SQL*Net from client
          8 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
        100 rows processed
18:52:31 rel15_real_p>analyze table t1 compute statistics;
Table analyzed.
18:55:35 rel15_real_p>analyze table t2 compute statistics;
18:55:38 rel15_real_p>set autotrace on
18:55:42 rel15_real_p>Select T1.C2
18:55:43   2 From T1, T2
18:55:45   3 where T2.C1 = T1.C1
18:55:46   4 /
        C2
       101
       102
       103
       104
       105
        C2
       200
100 rows selected.
Execution Plan
   0      SELECT STATEMENT Optimizer=ALL_ROWS (Cost=6 Card=100 Bytes=7
          00)
   1    0   MERGE JOIN (Cost=6 Card=100 Bytes=700)
   2    1     TABLE ACCESS (BY INDEX ROWID) OF 'T1' (TABLE) (Cost=2 Ca
          rd=100 Bytes=500)
   3    2       INDEX (FULL SCAN) OF 'SYS_C0013059' (INDEX (UNIQUE)) (
          Cost=1 Card=100)
   4    1     SORT (JOIN) (Cost=4 Card=100 Bytes=200)
   5    4       TABLE ACCESS (FULL) OF 'T2' (TABLE) (Cost=3 Card=100 B
          ytes=200)
Statistics
          1 recursive calls
          0 db block gets
         23 consistent gets
          0 physical reads
          0 redo size
       1393 bytes sent via SQL*Net to client
        562 bytes received via SQL*Net from client
          8 SQL*Net roundtrips to/from client
          1 sorts (memory)
          0 sorts (disk)
        100 rows processed
18:56:56 rel15_real_p>Select T1.C2
18:56:56   2 From T1, T2
18:56:56   3 where T1.C1 = T2.C1
18:56:58   4 /
        C2
       101
       102
       103
       104
       105
        C2
       200
100 rows selected.
Execution Plan
   0      SELECT STATEMENT Optimizer=ALL_ROWS (Cost=6 Card=100 Bytes=7
          00)
   1    0   MERGE JOIN (Cost=6 Card=100 Bytes=700)
   2    1     TABLE ACCESS (BY INDEX ROWID) OF 'T1' (TABLE) (Cost=2 Ca
          rd=100 Bytes=500)
   3    2       INDEX (FULL SCAN) OF 'SYS_C0013059' (INDEX (UNIQUE)) (
          Cost=1 Card=100)
   4    1     SORT (JOIN) (Cost=4 Card=100 Bytes=200)
   5    4       TABLE ACCESS (FULL) OF 'T2' (TABLE) (Cost=3 Card=100 B
          ytes=200)
Statistics
          1 recursive calls
          0 db block gets
         23 consistent gets
          0 physical reads
          0 redo size
       1393 bytes sent via SQL*Net to client
        562 bytes received via SQL*Net from client
          8 SQL*Net roundtrips to/from client
          1 sorts (memory)
          0 sorts (disk)
        100 rows processed- Pavan Kumar N

Urgent: Performance problem with where clause using IN and an OR condition

Select statement is:
select fl.feed_line_id
from ap_expense_feed_lines_all fl
where ((:1 is not null and
fl.feed_line_id in (select distinct r2.object_id
from xxdl_pcard_wf_routing_lists r2,
     per_people_f hr2
where upper(hr2.full_name) like upper(:1||'%')
          and hr2.person_id = r2.person_id
and r2.fyi_list is null
          and r2.sequence_number <> 0))
or
(:1 is null))
If I modify the statement to remove the "or (:1 is null))" part at the bottom of the where clause, it returns in .16 seconds. If I modify the statement to only contain the "(:1 is null))" part of the where clause, it returns in .02 seconds. With the whole statement above, it returns in 477 seconds. Anyone have any suggestions?
Explain plan for the whole statement is:
(1) SELECT STATEMENT CHOOSE
Est. Rows: 10,960 Cost: 212
FILTER
(2) TABLE ACCESS FULL AP.AP_EXPENSE_FEED_LINES_ALL [Analyzed]
(2) Blocks: 8,610 Est. Rows: 10,960 of 209,260 Cost: 212
Tablespace: APD
(6) TABLE ACCESS BY INDEX ROWID HR.PER_ALL_PEOPLE_F [Analyzed]
(6) Blocks: 4,580 Est. Rows: 1 of 85,500 Cost: 2
Tablespace: HRD
(5) NESTED LOOPS
Est. Rows: 1 Cost: 4
(3) TABLE ACCESS FULL XXDL.XXDL_PCARD_WF_ROUTING_LISTS [Analyzed]
(3) Blocks: 19 Est. Rows: 1 of 1,303 Cost: 2
Tablespace: XXDLD
(4) UNIQUE INDEX RANGE SCAN HR.PER_PEOPLE_F_PK [Analyzed]
Est. Rows: 1 Cost: 1
Thanks in advance,
Peter

Thanks for the reply, but I have already checked what you are suggesting and I am pretty sure those are not causing the problem. The hr2.full_name column has an upper index and the (4) line of the explain plan shows that index being used. In addition, that part of the query executes on its own quickly.
Because the sql is not displayed in an indented format on this page it is a little hard to understand the structure so I am going to restate what is happening.
My sql is:
select a_column
from a_table
where ((:1 is not null) and a_column in (sub-select statement)
or
(:1 is null))
The :1 bind variable is set to a varchar2 entered on the screen of an application.
If I execute either part of the sql without the OR condition, performance is good.
If the :1 bind variable is null with the whole sql statement (so all rows or a_table are returned), performance is still good.
If the :1 bind variable is a not-null value with the whole sql statement, performance stinks.
As an example:
where (('wa' is not null) and a_column in (sub-select statement)) -- fast
where (('wa' is null)) -- fast
where (('' is not null) and a_column in (sub-select statement) -- fast
or
('' is null))
where (('wa' is not null) and a_column in (sub-select statement) -- slow
or
('wa' is null))

Cardinality estimator 2014 is off with OR in where clause

Here is my test setup on SQL Server 2014.
-- Create big table
CREATE TABLE [dbo].[Store](
Id int IDENTITY(1,1) NOT NULL,
City int NOT NULL,
Size int NOT NULL,
Name varchar(max) NULL,
CONSTRAINT [PK_Store] PRIMARY KEY CLUSTERED ([Id] ASC)
GO
CREATE NONCLUSTERED INDEX [IX_Store] ON [dbo].[Store] (City ASC, Size ASC)
GO
-- Fill with 100k rows
INSERT Store
SELECT i % 101, i % 11, 'Store ' + CAST(i AS VARCHAR)
FROM
(SELECT TOP 100000 ROW_NUMBER() OVER (ORDER BY s1.[object_id]) AS i
FROM sys.all_objects s1, sys.all_objects s2) numbers
GO
-- Create small table
CREATE TABLE #StoreRequest (City int NOT NULL, Size int NOT NULL)
GO
INSERT #StoreRequest values (55, 1)
INSERT #StoreRequest values (66, 2)
Now I execute the following query (I force the index to show statistics estimates)
SELECT s.City
FROM #StoreRequest AS r
INNER JOIN Store AS s WITH(INDEX(IX_Store), FORCESEEK)
ON s.City = r.City AND s.Size = r.Size
WHERE s.Size <> 1 OR r.City <> 55
Here are the estimates that I get (I'm not allowed to upload pictures):
Index Seek IX_Store
Actual Number of Rows: 90
Estimated Number of Rows: 50000
Fixing WHERE clause to use one table not two makes the estimate perfect:
SELECT s.City
FROM #StoreRequest AS r
INNER JOIN Store AS s WITH(INDEX(IX_Store), FORCESEEK)
ON s.City = r.City AND s.Size = r.Size
WHERE s.Size <> 1 OR s.City <> 55
Index Seek IX_Store
Actual Number of Rows: 90
Estimated Number of Rows: 89.74
Switching to 2012 compatibility mode gives estimate of 1 in both cases:
Index Seek IX_Store
Actual Number of Rows: 90
Estimated Number of Rows: 1
Could anyone explain the first result? I'm a bit worried about it. The fix in this case is trivial, but this problem gave us quite some headache in more complex real life queries with multiple joins.
Thank you!

But not full statistics on a field basis, just sometimes some default stats like total row count that some plans will build. Even your StoreRequest table only has one two-field index that will have a full histogram.
But I've seen SQL Server make massively bad plans on two-field indexes.
I've seen SQL Server go wrong one-column indexes, so that is not a very relevant point.
Temp tables or not, the estimate here is clearly incorrect. SQL Server knows the density of Size and City. It knows the cardinality of the temp table. The density information gives how many rows the the join will produce. The WHERE clause will then remove
a certain number of rows. With no statistics for the temp table, it does not now how many, but it will apply some standard guess.
50000 is a completely bogus number, because the join cannot produce that many rows, and SQL Server is able to compute the join with out the WHERE clause decently. (Well, it estimates 90, when the number is 180.) No, this is obviously a case of the cardinality
estimator giving up completely.
It is worth noting that both these WHERE clauses gives reasonable estimates:
WHERE r.Size <> 11 OR r.City <> 550
WHERE s.Size <> 11 OR s.City <> 550
Whereas these two gives the spooky 50000:
WHERE s.Size <> 11 OR r.City <> 550
WHERE r.Size <> 11 OR s.City <> 550
Erland Sommarskog, SQL Server MVP, [email protected]

Function-based index with OR in the wher-clause

We have some problems with functin-based indexes and
the or-condition in a where-clause.
--We use Oracle 8i (8.1.7)
create table TPERSON(ID number(10),NAME varchar2(20),...);
create index I_NORMAL_TPERSON_NAME on TPERSON(NAME);
create index I_FUNCTION_TPERSON_NAME on TPERSON(UPPER(NAME));
The following two statements run very fast on a large table
and the execution-plan asure the usage of the indexes
(-while the session is appropriate configured and the table is analyzed):
1)     select count(ID) FROM TPERSON where upper(NAME) like 'MIL%';
2)     select count(ID) from TPERSON where NAME like 'Mil%' or (3=5);
In particular we see that a normal index is used while the where-clause contains
an OR-CONDITION.
But if we try the similarly select-statement
3)     select count(ID) FROM TPERSON where upper(NAME) like 'MIL%' or (3=5);
the CBO will not use the function-index I_FUNCTION_TPERSON_NAME and we have a full table scan in the execution-plan.
(This behavior we only expect with views but not with indexes.)
We ask for an advice like a hint, which enable the CBO-usage
of function-based indexes in connection with OR.
This problem seems to be artificial because it contains this dummy logic:
     or (3=5).
This steams from an prepared statement, where this kind of boolean
flag reduce the amount of different select-statements needed for
covering the hole business-logic, while using bind-variables for the
concrete query-parameters.
A more realistic (still boild down) version of our select-statement is:
select * FROM TPERSON
where (upper(NAME) like 'MIL%' or (NAME is null))
and (upper(FIRSTNAME) like 'MICH% or (FIRSTNAME is null))
and ...;
thank you for time..
email: [email protected]

In the realistic statement you write :
select * FROM TPERSON
where (upper(NAME) like 'MIL%' or (NAME is null))
and (upper(FIRSTNAME) like 'MICH% or (FIRSTNAME is null))
and ...;
as far as i know, NULL values are not indexed, "or (NAME is NULL)" have to generate a full table scan.
HTH
We have some problems with functin-based indexes and
the or-condition in a where-clause.
--We use Oracle 8i (8.1.7)
create table TPERSON(ID number(10),NAME varchar2(20),...);
create index I_NORMAL_TPERSON_NAME on TPERSON(NAME);
create index I_FUNCTION_TPERSON_NAME on TPERSON(UPPER(NAME));
The following two statements run very fast on a large table
and the execution-plan asure the usage of the indexes
(-while the session is appropriate configured and the table is analyzed):
1)     select count(ID) FROM TPERSON where upper(NAME) like 'MIL%';
2)     select count(ID) from TPERSON where NAME like 'Mil%' or (3=5);
In particular we see that a normal index is used while the where-clause contains
an OR-CONDITION.
But if we try the similarly select-statement
3)     select count(ID) FROM TPERSON where upper(NAME) like 'MIL%' or (3=5);
the CBO will not use the function-index I_FUNCTION_TPERSON_NAME and we have a full table scan in the execution-plan.
(This behavior we only expect with views but not with indexes.)
We ask for an advice like a hint, which enable the CBO-usage
of function-based indexes in connection with OR.
This problem seems to be artificial because it contains this dummy logic:
     or (3=5).
This steams from an prepared statement, where this kind of boolean
flag reduce the amount of different select-statements needed for
covering the hole business-logic, while using bind-variables for the
concrete query-parameters.
A more realistic (still boild down) version of our select-statement is:
select * FROM TPERSON
where (upper(NAME) like 'MIL%' or (NAME is null))
and (upper(FIRSTNAME) like 'MICH% or (FIRSTNAME is null))
and ...;
thank you for time..
email: [email protected]

Using if logic in the where clause of a select statement

I have a select clause. And in the select clause there is a variable all_off_trt that can be 'Y' or 'N'.
In the where clause I want to make it so that if a form variable is checked and all_off_trt is 'Y' then
exclude it else if the form variable isn't checked then select it no matter what all_off_trt is.
Is there any way to include either and if statement or a case statement within the where clause to acheive this? If not is there another way of doing it?
Basically I am looking for a case statement like this
case
when all_off_trt = 'Y' and mail_para.code = 'Y' then false
else true
end
Message was edited by:
Tugnutt7

Ok, so that really doesn't solve my problem. I have 3 different fields that I need to do that with. Each combining in a select statement to print an email list, as well as other thing limiting the where clause.
This is currently what I have, tested and working 100%.
cursor email_cur is
select unique p.email,s.all_off_trt,s.all_deceased,s.no_enroll
from participant p, trialcom t, ethics s
where p.status='A'
and p.surname=t.surname
and p.initials=t.initials
and s.trial_cd = t.tricom
and s.centre = t.centre
and p.email is not null
and (t.centre in (select code from mail_parameters where user_name=user and mail_para='CENTRE')
or 'XX' in (select code from mail_parameters where user_name=user and mail_para='CENTRE'))
and (t.tricom in (select code from mail_parameters where user_name=user and mail_para='TRIAL')
or 'XX' in (select code from mail_parameters where user_name=user and mail_para='TRIAL'))
and (t.role in (select code from mail_parameters where user_name=user and mail_para='ROLE')
or 'XX' in (select code from mail_parameters where user_name=user and mail_para='ROLE'))
and (p.country in (select code from mail_parameters where user_name=user and mail_para='COUNTRY')
or 'XX' in (select code from mail_parameters where user_name=user and mail_para='COUNTRY'))
and (t.represent in (select code from mail_parameters where user_name=user and mail_para='REPRESENT')
or 'XX' in (select code from mail_parameters where user_name=user and mail_para='REPRESENT'));
This is in a program unit that runs when a button is clicked. At the end of that I need to add on the 3 case statements that help further narrow down the selection of emails to be printed. Then it prints the emails selected from this statement into a file. So it has to be done right in the select statement. The three table variables are the all_off_trt, all_deceased, and no_enroll. The form has 3 checkboxes. One for each, that when checked (giving the variable associated with the checkboxes a value of 'Y') excludes all emails that have a 'Y' in the coresponding table variable.

Case in where clause

Hello to everyone
I have a select like as
select
          where   (KPMERCE IS NULL AND KSMERCE IS NULL)
     UNION
          where   (KPMERCE IS NOT NULL AND KSMERCE IS NULL AND K_PMERCE = KPMERCE)
     UNION
          where   (KSMERCE IS NOT NULL AND K_PMERCE = KPMERCE AND K_SMERCE = KSMERCE)is possibile create a CASE in where clause, something as, So, i can write a single query,
          CASE (in where-clause)
          WHEN   (KPMERCE IS NULL AND KSMERCE IS NULL)
          WHEN   (KPMERCE IS NOT NULL AND KSMERCE IS NULL AND K_PMERCE = KPMERCE)
      WHEN   (KPMERCE IS NOT NULL AND KSMERCE IS NOT NULL AND K_PMERCE = KPMERCE AND K_SMERCE = KSMERCE) so
IF CONDITION IS SATISFYED RETURNs ROWS OTHERWISE NO ROWS
Thanks in advance

If your select lists are equal, then you can do it like this:
where ( (KPMERCE IS NULL AND KSMERCE IS NULL)
       or (KPMERCE IS NOT NULL AND KSMERCE IS NULL AND K_PMERCE = KPMERCE)
       or (KSMERCE IS NOT NULL AND K_PMERCE = KPMERCE AND K_SMERCE = KSMERCE)
       )Regards,
Rob.

LIKE in where clause

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