OBIEE 11g: white space character - oracle

The problem: Direct SQL based OBIEE analysis ignores whitespace character.
For example:
Oracle: select chr(9)||'New volume' from dual
Oracle result: " New volume"
OBIEE result: "New volume" (ignores chr(9))
Why OBIEE ignores chr(9) code showing result?
Should I use some specific HTML codes?
Thanks in advance.

i tested your statement in obiee 12c , it also ignores statement with leading whitespaces. but when you execute this. it does include it on the answers and export file ...
select 'test'|| chr(9)||'New volume' as c1 from dual
Do you need to add whitespace to the start always ? Whats the total goal , so maybe we can find alternative workaround for your problem ...

OBI trims leading spaces and trailing spaces from strings. What's the goal of this? If you're using Direct DB requests then that points to a questionable usage of the tool already.

Related

Replace characters (&amp) in oracle

I'm trying to use the inbuilt oracle function to replace '&amp' with &. I wrote two functions below but it's not working for me. On running these two in sql developer tool its asking me for input. My requirement is to replace html entities.
select REPLACE('&', '&', '&') from DUAL;
select regexp_replace('&', '&', '&') from DUAL;
Could any one please tell me what's wrong I am doing?.
This should probably be marked as a duplicate, but you need to add this to your script
SET SCAN OFF - that tells us to ignore the & which is used for replacing text when running code in SQLPlus
Once you have that disabled, you can run the queries one at a time with data grids (the first execution mode) or as sqlplus scripts (the second execution mode).
You should execute set define off before executing your query to suppress processing of substitution variables which start by &.
The command set define off will stay active until you enter set define on on your sqlplus session or sql developer worksheet.
thatjeffsmith answer was right but set scan off is tagged obsolete by Oracle. Anyway, it still work.

Oracle APEX - no leading zero

I have an app build in Oracle APEX 18.2. Every number field in app have missing leading zero. For example when the number is 0.5, APEX displays it as .5. The problem occurs also in SQL Workshop. In SQL Developer numbers with leading zeros are formatted well, so I think this is problem with Oracle APEX, not with Oracle DB. Is there any global setting for number formatting in APEX?
As far as I can tell, there's no such a global setting, which means that you'd have to apply some format mask either
directly (in SELECT statement, within the TO_CHAR function call), or
in column's (item's) property
Format mask you might consider is FM999G990D00 as
FM will remove leading spaces and superfluous trailing zeros
instead of using explicit , and . grouping & decimal characters, use G and D instead
I had an issue adding zeros to numbers, but it was fixed using Function with Oracle Developer
select LPAD((max(ID))+1, 6, '0') from Yourtable
and call it as a function.
Probably you could use PL/SQL expressions to fix it
I had the same issue recently. i fixed it using to_char(xxx,'FM999G990D00')
SELECT mont.period_name AS PERIOD
, to_char(ivo.total_overtime,'FM999G990D00')
, to_char(emho.ACTUAL_TRANSFERRED_HOURS,'FM999G990D00')
, to_char(emho.actual_recup_days,'FM999G990D00')
FROM .....
worked like a charm
I'll assume you have a Classic or Interactive Report, in such case:
Go to page designer and select the column
Go to the format mask option
Select the numeric format you wish to have.
You'll probably get something like 999G999G999G999G990D00
if it has a 9D00 at the end, change the 9 to a 0

sql*plus is truncating the columns names according to the values in that columns

I have two broad questions:
Q1. Are executing the lines of code in Oracle SQL Developer and executing the same code in sqlplus command prompt same things?
(reason I ask this that I heard that not all the sqlplus commands are executable in SQL Developer. If answer to above question is yes then please then few useful links will help).
Q2. I am spooling the results of a sql query to a .csv file, but the thing is that columns names are truncated according the maximum length of the values in that column.
My code is:
set colsep ","
spool C:\Oracle\sample.csv
select * from acct_clas_rule;
spool off;
Output of above code is (middle column is having null values)
ABCD_,ABCD_,ABC
-----,-----,---
AB , ,WSD
ABCD , ,WSD
ABCD , ,WSD
SG , ,WSD
KD , ,WSD
WD , ,LKJ
KLHGF, ,LKO
WSDFG, ,LOK
WSDF , ,LKO
WS , ,GH
In above output, columns names have been truncated. I want full names of the columns to be displayed. Can anyone help?
I have seen the question in this link, but I didn't understand how to apply the answers provided there as there was no particular example cited. I am new to these things so I couldn't understand.
Original names of my columns (from left to right in above table) are :
ABCD_DFGT_SDF, ABCD_EDF_GH, ABCD_DFRE
PS -
1. I am using Oracle SQL developer to run sqlplus commands. I think because of which few of my commands are not working (like set underline, set linesize etc.).Please let me know if this is the case. I actually want remove those underlines beneath the columns names.
2. Also let me know that whether you answer is applicable to Oracle SQL Developer or sqlplus.
Thank You
There are a couple of things you can do, in addition to #JChomel's approach - that will work in either SQL Develoepr or SQL*Plus, while these suggestions are specific to SQL Developer.
Let's start with a dummy query based on a CTE to get something like your situation:
set colsep ","
with acct_clas_rule (abdc_1, abcd_2, abcd_3) as (
select cast('AB' as varchar2(5)), cast(null as varchar2(5)), cast('WSD' as varchar2(4)) from dual
union all select 'ABCD', null, 'WSD' from dual
-- ...
union all select 'WS', null, 'GH' from dual
)
select * from acct_clas_rule;
When run as a script in SQL Developer (from the document+arrow icon, or F5) the output is:
ABDC_,ABCD_,ABCD
-----,-----,----
AB , ,WSD
ABCD , ,WSD
WS , ,GH
If you change the query to include the SQL Developer-specific formatting hint /*csv*/ then you get the output you want:
select /*csv*/ * from acct_clas_rule;
"ABDC_1","ABCD_2","ABCD_3"
"AB","","WSD"
"ABCD","","WSD"
"WS","","GH"
except that the strings are all enclosed in double-quotes, which might not be what you really want. (It depends what you're doing with the spooled file and whether any of your string values contain commas, which would confuse Excel for instance).
With more recent versions of SQL Developer you can get exactly the same result without modifying the query using the sqlformat option:
set sqlformat csv
select * from acct_clas_rule;
but again you get the double-quotes. You could change the double-quotes to different enclosure characters, but that probably doesn't help.
A different approach is to use the built-in export tools instead of spool. If you run the query as a statement (green 'play button' icon, or control-enter) then rather than appearing in the Script Output panel, a new Query Result panel will open next to that, showing the results as a grid.
If you right-click on the results you'll get a contextual menu, and choosing Export... from that will give you a wizard to export the results in a format of your choice, including CSV:
You can leave the left and right enclosures as double-quotes to get the same results as the options above, except that null values use the word 'null' instead of an empty string:
"ABDC_1","ABCD_2","ABCD_3"
"AB",null,"WSD"
"ABCD",null,"WSD"
"WS",null,"GH
or you can change them, or remove them by choosing 'none', which gives you:
ABDC_1,ABCD_2,ABCD_3
AB,null,WSD
ABCD,null,WSD
WS,null,G
#thatjeffsmith has commented on how to change the null-replacement text for the /*csv*/ approach. For export it looks like having the word 'null' might have been a bug in 17.2.0; in 17.3.1 that does not appear, and instead you see:
ABDC_1,ABCD_2,ABCD_3
AB,,WSD
ABCD,,WSD
WS,,GH
or enclosed empty strings ("") if you leave the enclosures set.
Q1: TI'm not an expert of SQL Developer. There might be a mode like "command line" or something where you could get similar result, but unsure.
Q2: You have to set the right option to sqlplus: here is a trick I know of (it will also remove the --- --- --- that will cause other issue):
SET HEADING OFF`, to avoid column name to be printed
Union all the column names at the beginning of your script:
set colsep ","
spool C:\Oracle\sample.csv
select 'ABCD_DFGT_SDF', 'ABCD_EDF_GH', 'ABCD_DFRE' from dual
UNION ALL
select * from acct_clas_rule;
spool off;
use the sql plus set command -----> set underline off

How do I execute queries with multiple lines using QOCI (the Qt Oracle binding)?

I am using the QOCI binding to connect Qt with an Oracle 10g database. The code is really simple:
QSQLQuery sqlQuery = QSQLQuery(database);
sqlquery.prepare(querystring);
sqlQuery.exec();
Now if querystring is only one line, it works:
select * from dual
But if it contains multiple lines, I get an ORA-911 invalid character:
select *
from dual
I have a lot of queries spanning multiple lines, so this is quite a problem. Just removing newlines in Qt is not an option, because the queries contain end-of-line comments ("--").
Any suggestions how I can execute these multi-line queries?
Answering my own question: The newline character was the unicode U+2029 paragraph seperator instead of a normal newline (\n). This triggered the ORA-911.
querystring.replace(QChar(0x2029), QChar('\n'));
does the trick.

autogenerated sql code: single backslash as an escape character is failing

I'm querying an oracle 9i database with:
SELECT * FROM table WHERE column LIKE '%' || ‘someText’ || '%' ESCAPE '\';
and it fails with the error "escape character must be character string of length 1" ( ORA-01425 error), while succeeding in an oracle express 10g database.
Making it a double backslash (ESCAPE '\\') solves the problem for the oracle 9i database, but generates instead the same ORA-01425 error for the 10g database.
I cannot edit the SQL since it's auto-generated via Telerik OpenAccess ORM.
The Linq code that leads to the SQL above is:
activity.Name.Contains.("someText")
I would like both databases to handle the ESCAPE '\'... Or instead, have another way of searching table items by their name or description.
Thanks in advance!
Not familiar with Linq but I'm a bit confused about where you're executing the query - are you just pasting the generated code into SQL*Plus running against two databases, where that behaviour can at least be explained?
If you are doing it in SQL*Plus, do a show escape in each environment; I suspect 9i will report escape "\" (hex 5c) while the 10g will report escape off. This might indicate that escape handling has previously been set up in the 9i instance but not in the (presumably more recent) 10g one.
If any of this has turned out to be relevant so far, try doing set escape \ in the 10g session and try the \\ version again. And in 9i try doing escape off and try the single-\ version there. Both should now work.
Assuming you're still with me, the next question is why 9i has that setting; there's probably a login.sql or glogin.sql file that's setting it automatically. You might be able to get that removed, as long as it won't affect anything else, to allow the generated code to run unaltered.
I don't think any of that will be relevant if you're going to be executing the code some other way; not sure if you're just testing and debugging the generated code in SQL*Plus and will eventually execute it elsewhere (lack of knowledge of Linq again), in which case this may be a transitory problem anyway.
I'm also not sure what you're actually escaping anyway...
Try:
SELECT * FROM TABLENAME
WHERE COLUMNNAME LIKE '\%' ESCAPE '\';
Generally ESCAPE symbol in LIKE used for allow search symbols '%' and '_'
you could avoid the backslash issue altogether. Try using the curly braces around the escaped characters instead.
http://download.oracle.com/docs/cd/B10500_01/text.920/a96518/cqspcl.htm
Does it fail for every input or just specific strings? The problem may not be with the query, but with the input. If there is an odd number of backslashes, Oracle may try to escape something that shouldn't need an escape.
For example, this works because it's escaping the '%':
select * from dual where 'test' like '%'||'\'||'%' escape '\';
But this fails because it's trying to escape 'a', which doesn't need escaping:
select * from dual where 'test' like '%'||'\a'||'%' escape '\';
Can you modify the string before it's passed to the function and fix odd backslashes?
In case anyone stops by with the same problem... My issue was that I was dealing with “NVARCHAR2” fields. I received help with this issue in the oracle forums :)
This query: select * from dual where 'dummy' like '%' escape '\';
works on both because the field ‘dummy’ is varchar2. If it were nvarchar2, the part of the query that could (only possibly!) cause problems would be the “escape '\'” part (my oracle 9i wants escape ‘\’, my oracle 10g wants ‘\\’).
To overcome the problem, instead of using the ORM’s autogenerated code, I have written a stored procedure (only when I’m searching for strings), where I handle nvarchar2 fields like this: where TableName.ColumnName like N'%' || ‘someText’ || N'%' escape N'\'
And it’s working fine :)
That doesn’t explain, however, how having the same NVARCHAR2 columns, and the same SQL queries, they were handled differently by the two oracle servers (the 10g express on my local PC and the 9i) – that remains a question. So for anyone running into similar problems, it may be good to know if it’s a nvarchar2 issue (I had no idea it could be a problem), and try working around it.

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