Dual Case Column names fail in select ORDER BY clause
This one is solved, but I thought someone might be able to explain why it happens.
I'm a newbie, since I just downloaded Oracel XE last night, and am trying it out.
I set up a trivial table with 4 text columns. As it happened, I used dual case for some of my column names, such as 'Nickname'.
When trying out the Query Builder, the Select statement failed whenever I added a sort.
After some head scratching and back-and-forth with the sample data base (HR), I finally renamed all the columns to upper case. (e.g. column 'Nickname' became 'NICKNAME'). Then it works.
Seems like a bug, but maybe it's just a feature. Here's the code generated by the Query Builder. As you can see, there are no quotes around the Table name or column names in the ORDER BY clause (and the dual case version of the column name works if I put the quotes in manually and run it with SQL command.) Seems quirky.
select "TEAMS"."NICKNAME" as "NICKNAME",
"TEAMS"."CITY" as "CITY",
"TEAMS"."DIVISION" as "DIVISION",
"TEAMS"."CONFERENCE" as "CONFERENCE"
from "TEAMS" "TEAMS"
order by TEAMS.NICKNAME ASC
Welcome to forum. :)
Now, answering your question - no i don't think this is a bug.
It is your code - which create this bug.
Now, question is - what happen?
Just check your select and from clause. You put all the names are in double quote. When you put anything within double quotes - it become a case sensitive. So, the problem occurs there.
Let's see ->
satyaki>
satyaki>select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Prod
PL/SQL Release 10.2.0.3.0 - Production
CORE 10.2.0.3.0 Production
TNS for 32-bit Windows: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - Production
Elapsed: 00:00:01.11
satyaki>
satyaki>create table s_otn
2 (
3 id number(4)
4 );
Table created.
Elapsed: 00:00:02.14
satyaki>
satyaki>set lin 80
satyaki>
satyaki>desc s_otn;
Name Null? Type
ID NUMBER(4)
satyaki>
satyaki>desc S_OTN;
Name Null? Type
ID NUMBER(4)
satyaki>
satyaki>desc s_OtN;
Name Null? Type
ID NUMBER(4)
satyaki>
satyaki>drop table s_otn;
Table dropped.
Elapsed: 00:00:05.22
satyaki>
satyaki>
satyaki>create table "S_otn"
2 (
3 id number(4)
4 );
Table created.
Elapsed: 00:00:00.12
satyaki>
satyaki>
satyaki>desc S_otn;
ERROR:
ORA-04043: object S_otn does not exist
satyaki>
satyaki>desc S_OTN;
ERROR:
ORA-04043: object S_OTN does not exist
satyaki>
satyaki>desc s_otn;
ERROR:
ORA-04043: object s_otn does not exist
satyaki>
satyaki>desc "S_OTN";
ERROR:
ORA-04043: object "S_OTN" does not exist
satyaki>
satyaki>desc "S_otn";
Name Null? Type
ID NUMBER(4)
satyaki>Got me?
Regards.
Satyaki De.
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htp.p('<td>');
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htp.p(' <td>');
Web_Pkg_Elements.doc_val(display(3));
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htp.formHidden('pi_sort_col', pi_sort_col);
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Approach we followed:
Opened the Catalog Manager in Offline mode and used the XML Search and Replace option.
With this option we are able to replace column names that are selected in a request but not those just used as filters(is prompted).
Example:
Suppose we have one request with "States Dimension"."State" seleted and "Fact Summary"."Country Description" as filter, we are able to not able to replace "Fact Summary"."Country Description" with "Countries Dimension"."Country Description"
Can anyone please help me...Is there any alternative solution for this?
Thanks in Advance.....Nope, I don't have a solution for this. You must never model descriptive columns in a fact table. Even when you have descriptive columns or textual content in one of your fact table columns, you should model them as part of a logical dimension table. Let this be a good lesson.
Regards,
Stijn -
Track down an INVALID COLUMN NAME.
Hi,
I have a SQL statement which contains a lot of column names and joins.
There may be approx 150 column names in my Select clause.
Now,when I run this in the User Env,i get the correct output.
But when this is run in the Prod Env,I get the Error:
ERROR at line 1:
ORA-29532: Java call terminated by uncaught Java exception:
oracle.jdbc.driver.OracleSQLException: ORA-00904: invalid column nameIs there any way where I can find out which is the INVALID COLUMN NAME in my SQL statement which gives an error when run in PROD env?Oracle9i or later would tell you the exact name of the column that is the problem. MAybe, you are on a release earlier than that.
SQL> desc emp
Name Null? Type
EMPNO NOT NULL NUMBER(4)
ENAME VARCHAR2(10)
JOB VARCHAR2(9)
MGR NUMBER(4)
HIREDATE DATE
SAL NUMBER(7,2)
COMM NUMBER(7,2)
DEPTNO NUMBER(2)
TITLE VARCHAR2(20)
SQL> select ename, invalid_column from emp ;
select ename, invalid_column from emp
ERROR at line 1:
ORA-00904: "INVALID_COLUMN": invalid identifier
SQL> disconnect
Disconnected from Oracle9i Enterprise Edition Release 9.2.0.3.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.3.0 - Production
SQL>What you could do is get the query that you are executing and run it in production SQL*Plus (or ask your DBA to do that for you). SQL*Plus would tell you the line number that has the problem (and hence you would know the column name):
SQL> select ename,
2 empno,
3 job,
4 invalid_column,
5 sal
6 from emp ;
invalid_column,
ERROR at line 4:
ORA-00904: "INVALID_COLUMN": invalid identifier
SQL>See, SQL*Plus tells you the problem is at line 4 and line 4 contains the offending column name. -
Hi all,
I have a table employee with columns
'employee_id',
'employee_name'
' employee_city' ( Note the spaces before the column name )
The table is created successfully.
But i cant to able to retreive the data by specifying the column name..
eg: select employee_city from employee.
It throws an error.
Please send me a solution to reanme the column name, so that it should not contain any spaces at start & end.
Thanks & Regards,
Hariharan STObviously the table was created this way:
SQL>create table testtab
"employee_id" number,
"employee_name" varchar2(100),
" employee_city" varchar2(100)
Table created.
SQL>desc testtab
Name Null? Type
employee_id NUMBER
employee_name VARCHAR2(100)
employee_city VARCHAR2(100)Note the double quotes: Columns that are created this way can only be selected using double quotes, too:
SQL>select employee_city from testtab;
select employee_city from testtab
ERROR at line 1:
ORA-00904: "EMPLOYEE_CITY": invalid identifier
SQL>select " employee_city" from testtab;
employee_city
Chicago
SQL>This of course is a very bad idea. Dave already showed you how to rename the columns.
Regards,
Gerd -
Is it possible to return column names?
Hi!
Is it possible to return column names of a select statement?
Let's say I have table with the following columns:
Col1
COl2
Col3
And I have a select statement like this:
Select * from XX
Is it then possible either through SQL or PL/SQL to return the column names?
Br
Casper ThraneIf you are looking at column names for a particular table,
then you can query aganist the sys.User_Tab_Columns.
here is the piece of code.
SELECT Column_Name
FROM Sys.User_Tab_Columns
WHERE Table_Name = 'TABLENAME';
Remember TABLENAME is the name of the table in CAPITAL letters.
You can use this in SQL or PL/SQL code.
You can also use the ALL_Tab_Columns but then you have add
another AND condition, because, the there may be a same table name for different users. so one has to use the owner Column in your query.
SELECT Column_Name
FROM All_Tab_Columns
WHERE Table_NAME = 'TABLENAME'
AND OWNER = 'TABLE_DESIRED_OWNER'; -
Order query depending on column names passed at runtime
Hi
Can any one suggest how to order by at run time depending on column name passed as parameter.
create or replace procedure dummy_proc( p_orderby varchar2,p_refcursor out sys_refcursor)
is
begin
open p_refcursor for select * from
emp where Status='A'
order by (select p_orderby from dual);
end;
--execution part for testing
declare
v_outcursor sys_refcursor;
v_rec_data emp%rowtype;
v_cnt number;
begin
dummy_proc ('ename,sal',v_outcursor);
begin
loop
fetch v_outcursor into v_rec_data;
v_cnt:=v_outcursor%rowcount;
exit when v_outcursor%notfound;
dbms_output.put_line('empno '|| to_char(v_rec_data.empno));
dbms_output.put_line('empno '|| v_rec_data.ename);
end loop;
end;
dbms_output.put_line('Count is'|| to_char(v_cnt));
end;
we do not want to something like below as my actual query is very big with union statements and case expressions, (below is just an similar example)
how i tried to order by but its not working.
v_sql='select * from emp where empno= '|| p_empno || ' order by '|| p_orderby;
open p_refcursor for v_sql;
Thanks in advance
Vishalwe do not want to something like below as my actual
query is very big with union statements and case
expressions, (below is just an similar example)
how i tried to order by but its not working.
v_sql='select * from emp where empno= '|| p_empno ||
' order by '|| p_orderby;
open p_refcursor for v_sql;I agree, you really don't want to do that, you want to use BIND VARIABLES.
v_sql := ' select * from emp where empno = :bound_empno order by :bound_orderby';
open p_refcursor for v_sql using p_empno, p_orderby;
[pre]
The size of the statement shouldn't come in to play, if the only dynamic portion of it is the order by clause then declare a constant which is the large query (you can use a LONG datatype) and then concatenate in the order by clause before you return the reference cursor.
Unless you can give a legitimate reason for why you cannot use Dynamic SQL (not why you do not want to use it) this would be my approach.
And please, if you don't know what a bind variable is...read about them, or your system will suffer. -
Execute SQL Task fails when specific column names are mentioned in Excel Query
Hi,
I have a requirement for extracting Excel data with thespecific column order. So instead of using the below query,
Select * From [Sheet1$A1:ZZ1]
I use the below one,
Select col1,
col2,
col91
From [CRM$A1:ZZ1]
So I have totally 91 columns.
I don't face any issues when i use the before query. i.e. direct select * from sheet1
But when i specify column names and do a select from the sheet it throws error as below,
[Execute SQL Task] Error: Executing the query "Select
[Col1]
From [Sheet1$..." failed with the following error: "No value given for one or more required parameters.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not
set correctly, or connection not established correctly.
I just need to retrieve the column name alone and not any of the values to it. So when i do simple select * it gives the column names in the order of what it is been with the excel. But i do want it to be sorted in alphabetically and to retrieve the column
names.
I am not getting any proper solution for this for past 1 and a half days. May anyone of you please help me get it sorted? - Thank you!
--------------------------- Radhai Krish | Golden Age is no more far | --------------------------Please use something like below:
SELECT F1 AS Col1, F2 AS Col2, F3 AS Col3, ...
FROM [Sheet1$A1:ZZ1]
Cheers,
Vaibhav Chaudhari
[MCTS],
[MCP] -
Problems on selecting views with french characters into column names
Hi All,
I have views with column names such as "Détermination Planimétriq" or "Année de construction:*";
I can get in my c# function this columns names from ALL_VIEWS dictionary table, but if I try to make a selectionby use of an OracleCommand, Oracle returns an "Invalid identifier" error:
SELECT "Détermination Planimétriq" FROM mytable;
System.Data.OracleClient.OracleException (0x80131938): ORA-00904: "Determination Planimetriq": invalid identifier at System.Data.OracleClient.OracleConnection.CheckError(OciErrorHandle errorHandle, Int32 rc) at ...
Any suggestion?...Be wary of using character codes outside the Western European "simple" alphanumeric [A-Z0-9] for object names, i.e. columns, table names, function and procedure names, and so on.
First reason, there is a 30 character limit for most object names, and characters that have to be spelled out with unicode characters take more space, i.e.:
select dump( 'Détermination Planimétriq' ) from dual;
DUMP('D?TERMINATIONPLANIM?TRIQ')
Typ=96 Len=29: 68,239,[ ... ]Although the varchar string for that column name looks like 25 characters, it needs room for 29 to store the e<acute> character. And could also depend on the client settings. Using case sensitive names is not a best practice, its better to avoid specifying objects with the double quotes.
http://docs.oracle.com/cd/E11882_01/server.112/e26088/sql_elements008.htm#i27570
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