Problem with comparison column multi Nested Tables
HelloI am facing a problem while comparing two collections using operator of type MULTISET. Below I pasted code examples referring to the Employees table in the HR schema.
program works very well, if it's a single column if I declare that, tab type is table of varchar2 (n);
Example code:
--create type base_type as object (id number,name varchar2(10));
--create type type_tab is table of base_type;
declare
v type_tab :=type_tab();
v2 type_tab :=type_tab();
v3 type_tab :=type_tab();
v1 number;
begin
select base_type(employee_id,last_name) bulk collect into v from employees where employee_id in (100,101,102);
select base_type(employee_id,last_name) bulk collect into v2 from employees where employee_id in (100,101);
v3:= v MULTISET EXCEPT v2;
end;
ErrorERROR on line 10:
ORA-06550: line 10, column 6:
PLS-00306: wrong number or types of arguments in the call to 'MULTISET_EXCEPT_ALL '.
ORA-06550: line 10, column 1:
PL/SQL: Statement ignored
Could you please address the issue and guide me how to solve this problem.
Thank you.
Renji
Why would you use collections like this in the first place?
When the data is the engine of SQL, then use the SQL engine to to deal with - not PL/SQL. And no - nested tables have no place in a good, working, flexible, high-performance and scalable relational design in Oracle.
To do this, use the multiset SQL function - example
.. your plsql code..
select
v MULTISET EXCEPT v2 into v3
from dual;
end;
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The questions are:
(1) a column will sort once only. So if I click on column 1, the head of black arrow appears. Subsequently, no amount of click will change the State of the data. I can sort the data on any of the 2 remaining columns, but I can never switch between ascendants and descendants of sequence on the same column.
(2) in Design view, I see all the data in each cell. After that I generated my WebHelp, some of the cells that contain drop-down text fields are missing. Some are, and some are not. Those who are there, work perfectly when I click on the text and the text of the menu drop-down appears. Each drop-down text field has a bookmark.
((3) continuous on 2) above, if I use the combination of keys ctrl-w in design, some of the cells that contain text to menu drop-down are missing (probably all those lacking in the Webhelp) and oddly, some of the borders of the cells (I used light blue) are missing. However, they are there in the WebHelp. A sample is attached.
Get my second table to work as I had hoped would be fantastic and worthwhile so far. However, I'm not quite there yet and need your help and suggestions.
Please see the last item in the list under the Notes. I suspect this is the problem.
See www.grainge.org for creating tips and RoboHelp
Follow me @petergrainge
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Sudden problem with replacement of subset of table
Hello
I was working on my project when suddenly a strange problem appeared.
I have a graph of intensity with 2 sliders that determine the coordinates of my area of interest. I created a simple solution to get these details and store them in table 1 d (x 0, y0, x 1, y1), hence I take them more later to perform some calculations. Now: it's all working fine and dandy that came out of nowhere share the table stopped storing the coords correctly. I put some sensors and index of the sliders and coordinates the eye to be acquired properly. But, for some reason, the function replace subset table stopped their storage in the appropriate cells. Whenever I move a cursor, its coordinates are now stored in the first two cells of a table. I'm pretty sure that I has not changed anything in the code, so what could be the cause?
Screenshot attached.
Oficmajster wrote:
Yep, I added new cases of events previously: cursor type? It was empty, until he did change and why?
If you don't the wiring of the table in the new case, the table in the shift register will be transformed into a table empty if running new cases. Once the array is empty, replacement of certain elements will not increase the size of the array, it will remain empty.
Solution: wire the table across all new cases (if you create tunnels of entry-related, it will be automatically )
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