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PHP add and merge sql result


PHP add and merge sql result

By : J Perez
Date : November 22 2020, 03:01 PM
Does that help Sounds like you wish to create a new array with the name and size combined. Here is an example:
code :
$combined = array();
while($row = $result->fetch_assoc()) {
    if (!isset($combined[ $row["user_id"] ])) { $combined[ $row["user_id"] ] = 0; }
    $combined[ $row["user_id"] ] += $row["size"];
}
foreach($combined as $userid => $size) {
    echo $userid ." ". $size ."<br>";
}


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heapq.merge: after merge the result of merge, the original merge is empty

heapq.merge: after merge the result of merge, the original merge is empty


By : user3572553
Date : March 29 2020, 07:55 AM
I hope this helps you . As the documentation (and the output on merge(a,b) in your example) indicates, the result of merge is an iterator. Iterators can only be consumed once, you can't reset or rewind them, and even if you could, your code doesn't do it. (Of course you can have several independent iterators for a given collection, at least if the collection supports it).
The first two merge calls return generators, the third call consumes those generators, and hence a and b are exhausted afterwards. (Actually, list(a) consumes a first, so in that snippet merge(a, b) will only see the items of b, but the idea is the same.) It doesn't mean to, and if you pass e.g. a list it won't be changed. But consuming an iterator means mutating it.
Review the result of git-merge before the actual merge

Review the result of git-merge before the actual merge


By : Jim C
Date : March 29 2020, 07:55 AM
seems to work fine As Marian Theisen suggested, you can do this to do the merge without committing
code :
git merge --no-commit <branchname>
git reset --hard
git reset --hard HEAD^
git reset --merge
merge sort not working when copying the result of merge operation directly to auxiliary array

merge sort not working when copying the result of merge operation directly to auxiliary array


By : Thomas Scheifinger
Date : March 29 2020, 07:55 AM
may help you . At each pass, you are putting the "sorted" elements in b; but since your code is assuming that the elements in arr are becoming more and more sorted, the operation you are performing isn't doing anything useful (because you would need to copy the sorted elements from b back into arr, or rely on the increasingly sorted b as the source of the data which is further sorted).
There is no "one line" solution I can think of given your current code - but that is in essence the problem you have.
Merge multiple result tables and perform final query on result

Merge multiple result tables and perform final query on result


By : MAGHAM VINOD
Date : March 29 2020, 07:55 AM
wish helps you Both functions simplified and merged, also supplying value parameters in the USING clause:
code :
CREATE OR REPLACE FUNCTION pg_temp.func_accu(_location_id integer, schema_customer text)
  RETURNS TABLE(networkid integer, count bigint) AS
$func$
BEGIN
   RETURN QUERY EXECUTE format('
      SELECT f.networkid, max(f.ct)
      FROM   %I.gateway g
           , get_available_networks_gw(g.id, $1) f(networkid, ct)
      WHERE  g.location_id = $2
      GROUP  BY 1'
    , _schema_customer)
   USING  _schema_customer, _location_id;
END
$func$ LANGUAGE plpgsql;
SELECT * FROM func_accu(123, 'my_schema');
SELECT f.networkid, max(f.ct)
FROM   myschema.gateway g, get_available_networks_gw(g.id, 'my_schema') f(networkid, ct)
WHERE  g.location_id = $2
GROUP  BY 1;
The VS Merge tool merge result is awful

The VS Merge tool merge result is awful


By : Meera
Date : March 29 2020, 07:55 AM
This might help you Regardless of the issue with line ending differences, the default merge tool in visual studio is awful. Like shockingly bad. It does not support proper 3-way merging like any serious merge tool does.
Fortunately you are able to configure visual studio to use external merge/diff tools, so you should configure it to use KDiff3, one of the best and popular merge tools, free open source software (GPL). See here, here or here for hints of how to configure (but there is no need to configure the parameters directly, just point to kdiff3.exe and visual studio will recognise it and fill in the required parameters on its own).
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