Using variables in table constaraints
Hi,
I am facing problem in using global variables in table constraints. It is giving error "911 : 42000 : java.sql.SQLException: ORA-00911: invalid character".Since I was not able to use project variable s,I have used global variables.
following is the code
insert into DEV_TGT.E$_TEST_TGT
ERR_TYPE,
ERR_MESS,
CHECK_DATE,
ORIGIN,
CONS_NAME,
CONS_TYPE,
C1,
C2
select
'F',
sysdate,
'(161666)TEST_2.TEST_TO_TETS_TGT',
'CHK',
'CK',
C1,
C2
from DEV_TGT.I$_TEST_TGT TEST_TGT
where not (
TEST_TGT.C1=#GLOBAL.V_LOAD_ID
)
Hi,
Did you refreshed or Assigned that variable before using in interface ?
Flow :-
Assgin/Refresh Variable -> interface (with contrsaint using variable)
Also,
If constarint is not an integer please use quotes ( '#GLOBAL.V_LOAD_ID' )
Regards,
Rathish
Edited by: Rathish on Sep 24, 2009 5:44 PM
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Using variables as table names. Ideas for alternative designs
Hi,
I am designing an application which uses synonyms to pull information from 'client' DBs via DB Links. The synonyms are created with a DB_ID in the name (example: CUSTOMER_100, CUSTOMER_200... where 100 and 200 are DB IDs from 2 separate client DBs.
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v_schema VARCHAR2 (50) := UPPER (p_schema);
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Rgs,
RobHi
rules engine style with table that holds the logic or code SQL directly in the procedure and IF THEN ELSE with db_id. Latter is better because SQL is native and objects are checked every time procedure is compiled.
James showed the simplest way but this rather complex way gives you more flexibility between instances if ever needed.
CREATE TABLE synonym_dml(db_id number not null primary key, sql_text clob)
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set serveroutput on size unlimited
create or replace
PROCEDURE Execute_Synonym_Dml(p_host VARCHAR2, p_db_name VARCHAR2, p_schema VARCHAR) IS
BEGIN
FOR r IN (
SELECT sql_text FROM synonym_dml
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END LOOP;
END;
create or replace
PROCEDURE Execute_Synonym_Dml_Too(p_host VARCHAR2, p_db_name VARCHAR2, p_schema VARCHAR) IS
PROCEDURE DB_ID_100 IS
BEGIN
DBMS_OUTPUT.PUT_LINE('-- executing DB_ID_100');
--INSERT INTO customer_results (first_name, last_name) SELECT customer_fname,customer_lname FROM customer100;
END;
PROCEDURE DB_ID_200 IS
BEGIN
DBMS_OUTPUT.PUT_LINE('-- executing DB_ID_200');
--INSERT INTO customer_results (first_name, last_name) SELECT customer_fname,customer_lname FROM customer200;
END;
BEGIN
FOR r IN (
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-- WHERE ac.db_id = d.db_id
-- AND i.db_id = d.db_id
-- AND i.host_id = h.host_id
-- AND upper(h.host_name) = p_hostname
-- AND upper(d.db_name) = p_instance
-- AND upper(ac.account_name) = p_schema
LOOP
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DB_ID_200;
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END LOOP;
END;
EXECUTE Execute_Synonym_Dml('demo','demo','demo');
EXECUTE Execute_Synonym_Dml_Too('demo','demo','demo');
DROP TABLE synonym_dml PURGE
DROP PROCEDURE Execute_Synonym_Dml
table SYNONYM_DML created.
1 rows inserted.
1 rows inserted.
PROCEDURE EXECUTE_SYNONYM_DML compiled
PROCEDURE EXECUTE_SYNONYM_DML_TOO compiled
anonymous block completed
-- executing immediately INSERT INTO customer_results (first_name, last_name) SELECT customer_fname,customer_lname FROM customer100
-- executing immediately INSERT INTO customer_results (first_name, last_name) SELECT customer_fname,customer_lname FROM customer200
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table SYNONYM_DML dropped.
procedure EXECUTE_SYNONYM_DML dropped. -
Using variable as table name in pl/sql query - Is possible?
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Thanks for any and all advice.
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Simple example (in the second case separate variables are used to create
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PL/SQL procedure successfully completed.
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3
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5
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7
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9
10 tab varchar2(30) := 'emp';
11
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16
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19 /
PL/SQL procedure successfully completed.Rgds. -
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Using variables to insert data in the table
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My thanks in advance.I would expect your insert statement to be this:
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INSERT statement in JSP using variables
People,
I am having problems inserting data from JSP into a MySQL database.
For example the following works perfectly fine:
String query = "INSERT INTO `test2` (`name`, `topic`, `message`) VALUES ('Jane Doe', 'Hi there', 'Example message')";
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E.g. the following (among a 100 other ways I have tried by now) does not work):
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stmt.executeUpdate(query);
This did not work either:
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Take a look on your String code :
"INSERT INTO `test2` (`name`, `topic`, `message`) VALUES ('Jane Doe', 'Hi there', 'Example message')";
it is not necessary to put QUOTE for the tablename and the fields.
my code work with :
String query = "INSERT INTO test2 VALUES( ' " + 123 + " ' ) ";
( if you inserting into all fields in your table ) OR
String query = "INSERT INTO test2 ( abc ) VALUES( ' " + 123+ " ' ) ";
( if you need to select certain fields ).
or you can try to refer to :
http://www.w3schools.com/sql/sql_insert.asp
hope this help. -
Hi,
I hope to get any insight possible. I am using External tables and the Default directory is set. Now the process is that I get an automatic downloads of files placed in that directory. They are all to have the same naming system.
Test_June_2006 or Test_July_2006 and so on. Basically the month will be one behind, so Since it is August, I am looking for Test_July_2006.
I was able to set the "location" parameter to accept a variable, but i am having some trouble with set the value to that variable.
My code:
define month = EXTRACT(MONTH FROM CURRENT_DATE)-1||'_'||EXTRACT(YEAR FROM CURRENT_DATE).txt
variable month varchar2(100)
drop table ext_Test;
create table ext_Test
(field1 varchar2(25),
field2 varchar2(10),
field3 varchar2(10),
field4 varchar2(15),
field5 Float,
field6 Float,
field7 Float
organization external
( default directory sourcedata
access parameters
( records delimited by newline
SKIP 1
fields terminated by ','
OPTIONALLY ENCLOSED BY '"'
missing field values are null
location ('Test_&month')
reject limit 0;
When I tried "location ('&month') and setting month to July, it worked fine, but now that I am adding functions, it is not setting the variable properly.
Any help would be appreciated. Thank you.You cannot use & substitution variable to replace file name dynamically.
You will have to use the ALTER TABLE command at run time to alter the location of the file to what you want before you start processing.
SQL> create table ext_Test
2 (field1 varchar2(25),
3 field2 varchar2(10),
4 field3 varchar2(10),
5 field4 varchar2(15),
6 field5 Float,
7 field6 Float,
8 field7 Float
9 )
10 organization external
11 ( default directory sourcedata
12 access parameters
13 ( records delimited by newline
14 SKIP 1
15 fields terminated by ','
16 OPTIONALLY ENCLOSED BY '"'
17 missing field values are null
18 )
19 location ('Test_&month')
20 )
21 reject limit 0;
Enter value for month: july
old 19: location ('Test_&month')
new 19: location ('Test_july')
Table created.
SQL> alter table ext_test location('Test_August') ;
Table altered.
SQL> -
Best options to use in Temp Table
Hello,
I was just trying to figure out the best options we can choose with when we come across a scenario where we need to use a Temp Table/Table Variable/Create
a Temp Table on the fly.
However, I could not see any big difference in using those options. As per my understanding using a table variable is more convenient if the query logic is
small and the result set also will be comparatively small.Creating a temp table is also an easy option but it takes much time and we can not create any indexes on it. I am working on a query optimization task where in plenty of temp tables are used
and the query takes more than five minutes to execute. We have created few indexes and all in few tables and reduced the query execution time up to 2 mnts.Can anyone give me more suggestions on it. I have gone through various articles about it and came to
know that there is no one solution for this and I am aware of the basic criteria like use Set No count on, Order the table in which the indexes are created, Do not use Select * instead use only columns which are really required, Create Indexes
and all. Other than these I am stuck with the usage of temp tables. There are some limitations where I can convert all the Temp table logic to CTE (I am not saying its not possible, I really dont have time to spend for the conversion). Any suggestions are
welcome.
Actual Query
select Code,dbo.GetTranslatedText(Name,'en-US')
as Name from ProductionResponse.ProductionResponse
00.00.02
5225 rows
With Table Variable
DECLARE @General
TABLE(Code
NVarchar(Max),Name
NVarchar(Max)
INSERT
INTO @General
select Code,dbo.GetTranslatedText(Name,'en-US')
AS Name from ProductionResponse.ProductionResponse
select
* from @General
00.00.03
5225 rows
With an Identity Column
DECLARE @General
TABLE(Id
INT IDENTITY(1,1)
,Code NVarchar(Max),Name
NVarchar(Max)
INSERT
INTO @General
select Code,dbo.GetTranslatedText(Name,'en-US')
AS Number from ProductionResponse.ProductionResponse
select
* from @General
00.00.04
5225 rows
With Temp Table:
CREATE
TABLE #General (Id
INT IDENTITY(1,1)
PRIMARY KEY,Code
NVarchar(Max),Name
NVarchar(Max)
INSERT
INTO #General
select Code,dbo.GetTranslatedText(Name,'en-US')
as Name from ProductionResponse.ProductionResponse
select
* from #General
DROP
TABLE #General
00.00.04
5225 rows
With Temp Table on the Fly
SELECT G.Code,G.Name
INTO #General
FROM
select Code,dbo.GetTranslatedText(Name,'en-US')
as Name from ProductionResponse.ProductionResponse
)G
select
* from #General
00.00.04
5225 rows>> I was just trying to figure out the best options we can choose with when we come across a scenario where we need to use a Temp Table/Table Variable/Create a Temp Table on the fly. <<
Actually, we want to avoid all of those things in a declarative/functional language. The goal is to write the solution in a single statement. What you are doing is mimicking a scratch tape in a 1950's tape file system.
Another non-declarative technique is to use UDFs, to mimic 1950's procedural code or OO style methods. Your sample code is full of COBOL-isms! In RDBMS we follow ISO-11179 rules, so we have “<something in particular>_code” rather than just “code” like
a field within a COBOL record. The hierarchical record structure provides context, but in RDBMS, data elements are global. Or better, they are universal names.
>> I am aware of the basic criteria like use SET NO COUNT ON, Order the table in which the indexes are created, Do not use SELECT * instead use only columns which are really required, CREATE INDEXes and all.<<
All good, but you missed others. Never use the same name for a data element (scalars) and a table (sets). Think about what things like “ProductionResponse.production_response” means. A set with one element is a bit weird, but that is what you said. Also, what
is this response? A code? A count? It lacks what we call an attribute property.
This was one of the flaws we inherited when ANSI standardized SQL and we should have fixed it. Oh well, too late now.
Never use NVARCHAR(MAX). Why do you need to put all of the Soto Zen sutras in Chinese Unicode? When you use over-sized data elements, you eventually get garbage data.
>> Other than these I am stuck with the usage of temp tables. There are some limitations where I can convert all the Temp table logic to CTE (I am not saying its not possible, I really do not have time to spend for the conversion). Any suggestions are
welcome.<<
Yes! This is how we do declarative/functional programming! Make the effort, so the optimizer can work, so you can use parallelism and so you can port your code out of T-SQL dialect.
--CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
in Sets / Trees and Hierarchies in SQL
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