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Build tree array from flat array in javascript
I have a complex json file that I have to handle with javascript to make it hierarchical, in order to later build a tree.
Every entry of the json has :
id : a unique id,
parentId : the id of the parent node (which is 0 if the node is a root of the tree)
level : the level of depth in the tree
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HTML input - name vs. id [duplicate]
... <input> tag, what is the difference between the use of the name and id attributes especially that I found that they are sometimes named the same?
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MySQL Workbench Dark Theme
I am new here on Stackoverflow and have full of excitement bringing up my first question. My first question is all about changing the color appearance of MySQL Workbench from the default of white background to its negative value of black.
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Can I bind an array to an IN() condition?
...right. fixed the code (didn't test it though)
edit: both chris (comments) and somebodyisintrouble suggested that the foreach-loop ...
(...)
// bindvalue is 1-indexed, so $k+1
foreach ($ids as $k => $id)
$stmt->bindValue(($k+1), $id);
$stmt->execute();
... might be redundant, so the...
MySQL Insert into multiple tables? (Database normalization?)
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No, you can't insert into multiple tables in one MySQL command. You can however use transactions.
BEGIN;
INSERT INTO users (username, password)
VALUES('test', 'test');
INSERT INTO profiles (userid, bio, homepage)
VALUES(LAST_INSERT_ID(),'Hello world!', 'http://www.stackoverflow...
MySQL ON vs USING?
In a MySQL JOIN , what is the difference between ON and USING() ? As far as I can tell, USING() is just more convenient syntax, whereas ON allows a little more flexibility when the column names are not identical. However, that difference is so minor, you'd think they'd just do away with USI...
SQL update fields of one table from fields of another one
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You can use the non-standard FROM clause.
UPDATE b
SET column1 = a.column1,
column2 = a.column2,
column3 = a.column3
FROM a
WHERE a.id = b.id
AND b.id = 1
share
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The key must be an application-specific resource id
...don't get the pattern. i want to set two tags corresponding to say a first and last name. where do i define the integer IDs for these?
– Jeffrey Blattman
May 26 '11 at 1:04
7
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PHP/MySQL insert row then get 'id'
...eld of my table auto increases when I insert a row. I want to insert a row and then get that ID.
10 Answers
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Rails migration for has_and_belongs_to_many join table
...ow do I do a script/generate migration to create a join table for a has_and_belongs_to_many relationship?
6 Answers
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