I want to get NUMBER value from RAW bytes in PL/SQL...For example, single-byte value 0xED in RAW variable should became 237 in NUMBER variable.
We used to use:ascii(utl_raw.cast_to_varchar2(utl_raw.substr(p_data,i,1))), but this seems working in DBs with single-byte character sets only, and now I am on DB with AL32UTF8 character set...
I would be happy if the following function returns 237, not 0:
function mmm ( r RAW -- ed (237 in decimal) ) return NUMBER is n NUMBER; begin
Years ago, someone created a database in Oracle that was carried over and now sits in Oracle 10g. I am developing an application that queries this database and returns the result as XML.
Many (thousands) of rows have an item description that contains an ampersand. I want each of these pieces of data to have it written as & amp; (had to add a space so it would show up here, but you know what I mean) instead of &, but I don't feel like doing thousands of UPDATEs to change this.
Does Oracle have any global find/replace functions that I can call? I'd rather do one update statement that replaces all occurances of & with & amp; but I can't seem to find a function that will do this.
I'm thinking something that would work like:
UPDATE table SET column1=REPLACE(column1,oldstr,newstr);
1 million rows average row length 200 bytes 50 columns and this update statement UPDATE mytable SET varchar2_4000_column = replace(replace(replace...300 times)
It looks at every row in the table (no WHERE clause) and does these 300 replace operations on this column for each row. Each replace replaces with a null so effectively it is removing strings. Much of the time these strings are not in the column.
This update statement takes 25 minutes and it is 98% CPU and 2% USER_IO time.
I figure that is what is taking all the time since it is a CPU bound statement. if rows in this table are persistent over time then tag rows with a flag to show which ones have already been processed and skip these next time around.
I have the next SQL Loader file, and it is giving me some headches because the Replace instruction is not working. It does not replace the ' ' by NULL.
In my project, the below function retrieve output very slowly. Is there any alternative code to replace this function with join
CREATE OR REPLACE FUNCTION f_johnson (i_case_id number,i_seq_num argus_app.case_reference.seq_num%type) RETURN VARCHAR2 AS c_ref VARCHAR2(32500) := null ; CURSOR c_refer IS
I have an already populated table that refers to a wrong foreign key in another table. I have table abc that has the column fk_id. this column currently refers to column x_id1 in the table abc while it should refer to column x_id2 in xyz. I am trying to replace the data but I guess I miss something in the logic or the right way of doing it:
commit; insert all into abc values (10,'ab1',1) into abc values (11,'ab2',2) into abc values (12,'ab3',5) into abc values (13,'ab4',7) into abc values (14,'ab5',9) into xyz values (1,1,'d1') into xyz values (2,2,'d2') into xyz values (5,3,'d3') into xyz values (7,4,'d4') into xyz values (9,5,'d5') select * from dual; commit;
--this following select returns 5 rows
select * from abc, xyz where abc.fk_id = xyz.x_id1;
-- the following update only updates 3 rows and sets the other 2 -- to null!
update abc set fk_id = (select x_id2 from xyz where xyz.x_id1 = abc.fk_id); commit;
In forms 11 g, whenever, We did any menu change, and deploy in server, same changes are not reflecting in clients machine immediatly. I even stop forms services and restart.After some time... generally after 1 day, it reflect the new changes.In forms 10G, I never face this issue. As soon as i close the old menu and re-open, new changes reflect.
I am facing a simple problem, but could not resolve as yet, i want to replace two string 'M/S' and ' " ' with null, i know this command SELECT REPLACE(' " M/S Private linker " ','M/S',NULL) FROM dual Which command i should use
I am doing some ETL that I need to run "faster". The function in which I am interested removes low ascii code characters from a string. Please see the timing below and the definitions of the of the functions below those. I am selecting just the first 100K rows for testing and timing purposes only. In production, we are doing millions of records several times a day, thus the desire for "faster". Selecting with no functions is very fast, 0.2 seconds. We would really really want to convert at least 100K rows per second.
The best I can do is get it down to around five seconds using clear_nonlegal. That is, ironically, the one that I thought would be the slowest. It's making thirty-one calls to REPLACE. I would have guessed that the other two would be much faster. I am guessing that REPLACE is just much better optimized than TRANSLATE and, of course, my homegrown PL/SQL, which isn't optimized at all.
So, my question is thisif there is a way I can optimize my custom function, or maybe know of a better already optimized standard SQL and/or Oracle function that would do the job? I am thinking about trying to use a Java stored procedure, but I have never done that before, I am not currently set up for it, if it would be any faster anyway. Is Java faster with string manipulation the PL/SQL? I am thinking it would be really fast to call a C method,
Connected to Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 Connected as aggs@AGGSTEST
SQL> set timing on SQL> SELECT COUNT(*) 2 FROM (SELECT DISTINCT keyword_dest_url 3 FROM se_keywords sek
I can't think of a clue how to get the desired results.
I have table column with varchar2 type. I need to convert the strings in this column to ascii values. Now I know Oracle function ascii() converts a character to ascii values. But it just converts the first character of the string and ignore the others. I need to convert the whole string to ascii values. For example, if I need to convert the string "USA", the result should be '858365' (as in U decimal value is 85, S decimal value is 83 and A decimal is 65).
I think I need to use instr() function and also PL/SQL to pass all these strings through a cursor and then use a loop but I'm still confused about it.
I can see that I can use REUSE_DATAFILES & TABLE_EXISTS_ACTION to overwrite tables by default, but is there a recognised way of replacing the entire DB with the impdp? Do I just create the instance, (with the init file) and not build/init the tables, or what? I'll experiment, but I'm just interested if there is a DBA best practice for this sort of thing.
I'm looking for a way to insert tabs (ASCII 009) in SQL output, to make the output file Excel-ready without manual intervention.
Here's what I need :
SQL> set output myfile.xls; SQL> select article,TAB,count(*) from sales group by article having count(*) > 0;
Instead of TAB I can insert a dollar sign, but then I have to replace it using a file editor, which is a manual operation. I have been looking for an OpenVMS application which can replace all dollar signs by tabs in a given file, with no luck.
I created a DCL procedure (simplified from GSR.COM which I found on the internet) that reads every record in the output file and substitutes dollar signs by tabs, but it doesn't work with tabs, only with "normal" characters.
Even if I use the OpenVMS editor to insert ASCII 009 tab characters in the SQL statement (using the GOLD 009 GOLD SPEC INS key combination), SQL apparently automatically substitutes tabs by full stop signs in the output :
select article,' ',date from werknemers limit to 2 rows; ARTICLE DATE TROUSERS . 12-28-1974 SHIRTS . 10-08-1973 2 rows selected
I can use SQL to create a CSV file (comma separated values) which can be opened by Excel :
"trousers",20 "shirts",30
But the user has to open this file from within Excel and make a number of choices (separator, text delimiter, header row) before (s)he gets to see the desired columnar spreadsheet. That's not automation : I need the generated SQL output file to be double-clickable so that it opens as a columnar spreadsheet immediately.
My application has several update-able forms. And I build a single staging table to store all these records.
The user wants a button on the last form and by clicking on this button they want to export the file(updated records from all the forms) in ASCII format.
if its do-able or not in apex since I haven't come across this kind of request earlier and didn't find the same in this forum?
Need to create or replace a Standard Sunguard package. When I'm executing, It is asking some series of parameters. when I cancel It is executing but the Web page is not opening giving error like PL/SQL: could not find program unit being called . Not understanding the exact error.
Getting starting with diving deeper into APEX and reading the developers guide all 800 pages of it! Thing is I'd like to get started with some of the more interesting stuff.
I have created a form page based on the "Form on a Table with Report". The report part looks fine. What I'd like to do now is use an API I've built to change how the insert and update works. So when the submit button is pressed it rather performs an API call to the procedure/function.
1. Should the API be a function or procedure. In my playing around I saw that a procedure might work better or easier to implement 2. How would I go about creating a call for the button to use instead of the current processes?
---------------------------- Apex 4.2 Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production PL/SQL Release 11.2.0.1.0 - Production CORE 11.2.0.1.0 Production TNS for Linux: Version 11.2.0.1.0 - Production NLSRTL Version 11.2.0.1.0 - Production Linux version 2.6.32-279.19.1.el6.i686 ----------------------------
