Using variables in Oracle

Hi,
I am using java and oracle and I want to know the way to achieve the "user-defined variables" functionality of mysql
[http://dev.mysql.com/doc/refman/4.1/en/user-variables.html]
Basically I want my update query/PL-SQL block to first define a variable and then refer it multiple times in the query.I also want to return the number of updated rows to my application code in java
I saw DEFINE variable,bind variables etc,but dont know what exactly should I use
Thanks in advance
Ananth

I am looking to use the variables in the query
itself.
Ex: select @t1:=100,@t2:=@t1+10 from tbl_name where
col_name > @t1 and col_name < @t2
[This is a simple ex.I want to use current timestamp
instead of 100 as first variable's value]
Also,as I have mentioned,I need to use these in
update statements also and return the no. of updated
rows to java codeUse Declare on the beginning of a PL/SQL block to declare variable names and types. Then just use them in the code (including update statements) without any prefix (@ is not needed in oracle). As a clear difference from MySQL, you don't need to use select to set a variable value if it does not depend on a query, just use the := operator. To read values from a query into variables, use "select ... into" syntax.
http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14261/selectinto_statement.htm#LNPLS01345
gojko adzic
http://gojko.net

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Query on using Variables in Oracle Query

Hi
i am new to Oracle, i have tried extracting data from the Oracle Database using the following Query which includes 1 variable SYSDATE_UTS, however when i try to execute the Query i get an error. Please let me know what am i doing wrong and how can i correct it.
Error Message
ORA-06550: line 4, column 1:
PLS-00428: an INTO clause is expected in this SELECT statement
Oracle Query
DECLARE SYSDATE_UTS NUMBER := (sysdate-to_date('19700101','yyyymmdd'))*86400;
BEGIN
SELECT
INCIDENT_NUMBER,
to_date(to_char((1/86400*REPORTED_DATE)+to_date('19700101','yyyymmdd'),'mm/dd/yyyy hh24:mi:ss'),'mm/dd/yyyy hh24:mi:ss') as REPORTED_DATE_TIME,
,GROUP_TRANSFERS
,LAST_MODIFIED_BY
,to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * LAST_MODIFIED_DATE,'mm/dd/yyyy hh24:mi:ss'),'mm/dd/yyyy hh24:mi:ss') as LAST_MODIFIED_DATE
,(to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) as AGE
,CASE
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 0 AND 1 THEN '0-1 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * SYSDATE_UTS, 'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 2 AND 4 THEN '2-4 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 5 AND 9 THEN '5-9 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 10 AND 19 THEN '10-19 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) >20 THEN '20+ Days'
ELSE 'UNKNOWN'
END AS AGE_GROUP
FROM IncidentDataBase
and STATUS not in (4,5,6)
and rownum <10;
END;

Hi Frank
i am using the following Oracle Version
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bi
PL/SQL Release 10.2.0.5.0 - Production
CORE 10.2.0.5.0 Production
TNS for Linux: Version 10.2.0.5.0 - Production
NLSRTL Version 10.2.0.5.0 - Production
and Quest Toad for Oracle to write and execute the queries:
Toad for Oracle Xpert
Version 10.1.1.8
The code i am using is:
variable SYSDATE_UTS NUMBER;
exec SYSDATE_UTS := (sysdate-to_date('19700101','yyyymmdd'))*86400;
SELECT
INCIDENT_NUMBER,
to_date(to_char((1/86400*REPORTED_DATE)+to_date('19700101','yyyymmdd'),'mm/dd/yyyy hh24:mi:ss'),'mm/dd/yyyy hh24:mi:ss') as REPORTED_DATE_TIME
,GROUP_TRANSFERS
,LAST_MODIFIED_BY
,to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * LAST_MODIFIED_DATE,'mm/dd/yyyy hh24:mi:ss'),'mm/dd/yyyy hh24:mi:ss') as LAST_MODIFIED_DATE
,(to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * :SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) as AGE
,CASE
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * :SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 0 AND 1 THEN '0-1 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * :SYSDATE_UTS, 'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 2 AND 4 THEN '2-4 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * :SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 5 AND 9 THEN '5-9 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * :SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 10 AND 19 THEN '10-19 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * :SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) >20 THEN '20+ Days'
ELSE 'UNKNOWN'
END AS AGE_GROUP
FROM IncidentDataBase
WHERE STATUS not in (4,5,6)
and rownum <10;
Notes:
1. When i put the cursor before "variable" (starting of the query) and execute the script i get an Error: ORA-00900: invalid SQL statement.
2. When i put the cursor just before "SELECT" i get a pop up.
a. it is a Toad window which displays the available variables (in this case :SYSDATE_UTS).
b. gives me a dropdown option to select the type (by default VARCHAR2 is selected).
c. there is a value field where i need to enter the value for the Variable.
d. the SQL statement shown in this dilog box does not include the 1st 2 lines
variable SYSDATE_UTS NUMBER;
exec SYSDATE_UTS := (sysdate-to_date('19700101','yyyymmdd'))*86400;
Q: is there something wrong in the syntax i am using?
Sven W. - I have been using your method all these days, which works just fine. i wanted to know how i could use a variable instead.
Business Requirement - My whole intent is to calculate the Age of an incident (Difference between "Reported Date" and current date) and to assign Age Groups (0-1 Days, 2-4 Days,....,20+ Days).
Edited by: 921713 on Mar 19, 2012 12:23 PM

Using variable with the same name as field name?

I have a complex proc where I have variables with the same name as field name used on a query. something like this:
SELECT a.id_table WHERE a.id_table = id_table
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declare procedure myproc(id_table int)
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2 from scott.emp
3 group by deptno;
    DEPTNO   COUNT(1)
        30          6
        20          5
10 3
SQL> set serveroutput on
SQL> declare
2 deptno varchar2(10);
3 i number;
4 begin
5 deptno:=10;
6 execute immediate
7 'select count(1) from scott.emp where deptno=:deptno' into i using deptno;
8 dbms_output.put_line('OUT ---> '||i);
9 end;
10 /
OUT ---> 3
PL/SQL procedure successfully completed.
SQL> Message was edited by:
tekicora
Message was edited by:
tekicora

Global Variable in Oracle Forms 6i

Hi,
How & where to define global variable in Oracle form 6i and also let me know how to access it.
Thanks in advance
Regards,
Sanket

hi
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it can store character value upto 255 for all usages.
We can initialize it when we declare otherwise give error if we did not assign it any value.
Oracle 10g it can take upto 4000 bytes
GLOBAL.ur_globalvar := TO_CHAR(15);
or
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or
Remmber numeric values are implicitly converted by oracle 2 character
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Erase('GLOBAL.my_var'); Regards,
Abdetu...

How can I use variable name as a prameter value in HOST Command ???

Hi All,
How can it possible to use variable value in parameter in HOST command ??
Following in my code:
host('rwclient server=reptest report=c:\cust_print.rdf p_1= s_sam_cust_id userid=wh1/wh1@dwh desformat=pdf desty=file desname=c:/temp/'||v_sam_cust_id||'.pdf');
Regards

Hello,
The Syntax of the builtin HOST is :
SyntaxPROCEDURE HOST
(system_command_string VARCHAR2);
PROCEDURE HOST
(system_command_string VARCHAR2,
screen_action NUMBER);
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http://www.oracle.com/webapps/online-help/forms/10g/topics/f1_help/builth_m/host.html?tp=true
Regards

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Hi,
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Here is my command :
declare
GET VARCHAR2(50);
begin
select OIA_GET_DESIGNATION into GET from INFODRI.OMA_IN_ARTICLES;
for rec in (select * from [email protected]_GET_DESIGNATION)
LOOP
dbms_output.put_line('TEN_CODE vaut : '||rec.ten_code);
END LOOP;
exception
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE('ERREUR ORACLE DETECTEE : '||rec.OIR_CUR);
DBMS_OUTPUT.PUT_LINE('Message Erreur : '||SUBSTR(SQLERRM,1,245));
:crd := -1;
end;
When I run this programm, I receive the error :
ORA-04054: database link REC.OIA_GET_DESIGNATION does not exist
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for rec in (select * from [email protected]_GET_DESIGNATION)
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Regards,
Rachel

What is the name of the DB Link and the name of the object you are selecting
from?
I find it easier to create a view on the remote object then use that in selects.
e.g,
Link Name = MyLink
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begin
for C_Rec in (select * from Rem_Addr_loc)
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Hi All,
I was going through the following link :
http://download.oracle.com/docs/cd/B14099_19/integrate.1012/b25307/nfb.htm#CIAEFBHH
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<nxsd:assign name="var1" value="${0,1}"/>
<nxsd:assign name="var2" value="${1}" />
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When an XML document is instantiated from an XML Schema with JAXB marshalling or in JDeveloper the variable value gets assigned.

Using Variable in place of property name in set_item_property procedure.

Hello,
I need to change the item properties dynamically by using variables for both properties names and their values.But during compilation its showing me error "Too many declrations".Kindly suggest me any best way.

You already have the answer to that one in the posting above.
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Use variables in a SELECT INTO FROM command

Hi,
How do I use variables within a select into from command? I want to loop through SYS.DBA_TABLES using a cursor and count the number of rows in a
selection of tables an then insert into a cardinality table.
The count of rows will be stored in a variable called CNT, that bit is easy however I need a variable in the FROM clause because that
value changes with every iteration of the cursor.
e.g.
CNT := 0;
TN := "MyTable";
select count(*) into CNT FROM TN;
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Edited by: Yorky001 on Sep 15, 2010 10:32 AM

Hi,
Thanks for the info, unfortunately I can get neither example to work on this 9i system, could well be pilot error as I only ever get
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set serveroutput on size 1000000;
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vstr VARCHAR2(500);
vstr1 VARCHAR2(500);
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vstr := 'SELECT count(*) FROM ';
dbms_output.put_line(vstr);
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Inserting variables into oracle

how do you creat insert statements in oracle using variables? it won't accept this statement
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If you're new to this, you should ESPECIALLY learn to use bind variables.
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Only Text Boilerplate can be rotated but you can reference a variable in a Boilerplate using a "lexical reference" :
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I want to pass bind variable into Oracle Reports 6I - Parameters.
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HARSH SHAH

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may be its not possible to use :P_PARAM1 in user parameter of oracle 6i reports
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thanks
mostafiz mitul
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Hi!
i wrote a PL\SQL procedure inside an odi procedure, using options, variables etc.
now we need to execute the procedure in different logical schemas.
We've at least 20 different logical schemas and to semplify the maintenance we'd like to pass the logical schema as an Option or something similar,
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I've got a question : are all you schema in the same server (database) ?
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example :
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select lschema_name as SCHEMA
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I am trying to use a variable for the name of a table but getting errors ...i am sure I am close to the correct form here but something is wrong. I sure would appreciate some help!
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ln_day Number;
ln_year Number;
ls_year VarChar2(4);
ls_prev_table VarChar2(30);
ls_cur_table VarChar2(30);
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null

Hi,
The parser does not under variables directly in dml statements.u need to form a statement and the parse and execute the same...
so the soln is
Declare
lv_stmt varchar2(250);
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lv_stmt := 'Delete from '| |ls_prev_table;
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u could also give a direct call like
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