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QUESTION
CREATE OR REPLACE FUNCTION PPP ()
RETURNS cursor
F1: BEGIN ATOMIC
declare c1 cursor ;
set c1 = CURSOR FOR select * from aaa ; {get error here}
RETURN c1 ;
END
...ANSWER
Answered 2021-Jun-14 at 07:15You get this error because your syntax is not valid.
One of the many restrictions on inline SQL blocks (that is, any compound block that starts withBEGIN ATOMIC
), is that:
"Cursors and condition handlers are not supported in inline SQL PL and therefore neither is the RESIGNAL statement."
See docs.
To get your code to compile , the function should not be inlined, but instead be a compiled block, replace BEGIN ATOMIC
by BEGIN
.
Compilation is just the first step, you will also need to get the function to execute correctly - other changes may be needed.
QUESTION
I have the following dataframe
...ANSWER
Answered 2021-Jun-11 at 20:53You can count the values per column for each column separately and then join the results:
QUESTION
matrixA =
[['AAA', 'BBB', 'CCC'],
['PPP', 'QQQ', 'RRR', 'SSS'],
['DDD','EEE','FFF'],
['GGG', 'HHH', 'III']]
...ANSWER
Answered 2021-Jun-11 at 05:23You can get the index
of listA
within matrixA
and then slice with it:
QUESTION
How to do that? i mean it is some kind of search on the matrix. I need to search search_matrix on main_matrix. Special rule is: if search_matrix is a included in beginning 4 elements of main_matrix then it can be a output. I mean if search_matrix is not in main_matrix's beginning (4 elements) it cannot be a in output_matrix. and element order is most important. elements must be in order.
...ANSWER
Answered 2021-Jun-10 at 09:59I don't know that it's a solution, but just to understand: Is this the result you're after?
QUESTION
I'd like to replace values in the table column with corresponding values of matches in the lookup column. I achieved this with data.table package "assign by reference" taking one value (and it's replacement) after the other, but I thought I could do something more modular.
In summary, I do this:
...ANSWER
Answered 2021-Jun-09 at 17:09We can do a join on
the 'code' and 'old' from table and lookup respectively
QUESTION
I'm currently learning C++ using PPP by Bjarne Stroustrup. There is a Practice question:
Write a program that prompts the user to enter two integer values. Store these values in int variables named val1 and val2. Write your program to determine the smaller, larger, sum, difference, product, and ratio of these values and report them to the user.
For ratio I want it to be like The ratio of 500 and 700 is 5:7
. I known the answer of this could be
ANSWER
Answered 2021-Jun-06 at 09:36You are working with the wrong algorithm: in order to find the ratio between two numbers a
and b
, you are doing:
QUESTION
I've two lists of objects that i wanna compare, a and b:
...ANSWER
Answered 2021-May-15 at 18:26ppp2 does not equal ppp3 because they are two different instances of a class. You could override the '==' operator to check if each field is the same. ie. ppp2.id == ppp3.id.
eg/ (taken from equatable docs but this is vanillar dart)
QUESTION
I've installed pptpd on ubuntu 18.04 and I can connect to vpn with android and windows client but I have no internet access while the server has full internet access. In pptpd log I noticed the error "Cannot determine ethernet address for proxy ARP".
I've changed the dns in /etc/ppp/options.pptpd as below:
...ANSWER
Answered 2021-May-23 at 05:29After trying many solutions finally I found the answer. My ethernet interface called ens160 so for IP masquerading I should use this:
QUESTION
I actually have a searchBar(autocomplete) that is working.
When i select a result, the displaySnack() is working, it displays a snackBar, but i would like to display the content of testList().
My goal is to understand how I can launch another widget, to be able to add new widget on the page again and again.
My final goal is once i have the selected value, to make an http request, get a list as return and display a listview.
The function is executed ( i can see it in debugger ) but doesn't display anything..
(i'm new to flutter, so please explain your response if possible :) ) onSuggestionSelected : yes i know that it is void..
...ANSWER
Answered 2021-May-20 at 20:33So what you are doing is basically just creating a ListView
with your testList()
function call and doing nothing with it, but what you want to do is to have that widget show up on the screen, right?
Flutter doesn't just show Widget if you create a new one, you must tell it to render. Just imagine you are doing preparing Widgets (e.g. Widgets in Widgets) and Flutter would render it immediately to the screen without you being finished, that wouldn't be that great.
You need to push that Widget over the Navigator
widget that Flutter provides you.
QUESTION
I have an object:
...ANSWER
Answered 2021-May-20 at 22:56const newObj = Object.keys(obj2).reduce((acc, key) => {
if (key.indexOf('_TOTAL') === -1) {
acc[key] = obj2[key] + (obj2[`${key}_TOTAL`] || 0);
}
return acc;
}, {}),
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