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What is the difference between single and double quotes in SQL?
...ould be more readable as product_id, so you use either of the following:
SELECT PRODUCT.id AS product_id
SELECT PRODUCT.id 'product_id'
Either works in Oracle, SQL Server, MySQL… but I know some have said that the TOAD IDE seems to give some grief when using the single quotes approach.
You do...
Is it better to use std::memcpy() or std::copy() in terms to performance?
...in as large of chunks as possible (many other implementations operate with char / char *, whereas I operate with T / T * (where T is the largest type in the user's implementation that has correct overflow behavior), so fast memory access on the largest types I can is central to the performance of my...
Jquery select all elements that have $jquery.data()
Select elements that i have previously set with jquery.data();
7 Answers
7
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Laravel Eloquent: How to get only certain columns from joined tables
...
Change your model to specify what columns you want selected:
public function user() {
return $this->belongs_to('User')->select(array('id', 'username'));
}
And don't forget to include the column you're joining on.
...
LINQ: Select an object and change some properties without creating a new object
.... But here is the expanded LINQ expression example.
var query = someList.Select(x => { x.SomeProp = "foo"; return x; })
What this does is use an anonymous method vs and expression. This allows you to use several statements in one lambda. So you can combine the two operations of setting the ...
How to insert an element after another element in JavaScript without using a library?
... than the insertBefore (break even if the existing node variable name is 3 chars long)
Downsides:
lower browser support since newer: https://caniuse.com/#feat=insert-adjacent
will lose properties of the element such as events because outerHTML converts the element to a string. We need it because...
Schema for a multilanguage database
...t PostGreSQL with hstore), you can't pass a parameter language, and say:
SELECT ['DESCRIPTION_' + @in_language] FROM T_Products
So you have to do this:
SELECT
Product_UID
,
CASE @in_language
WHEN 'DE' THEN DESCRIPTION_DE
WHEN 'SP' THEN DESCRIPTION_SP
EL...
A numeric string as array key in PHP
...around is:
$id = 55;
$array = array(
" $id" => $value
);
The space char (prepend) is a good solution because keep the int conversion:
foreach( $array as $key => $value ) {
echo $key;
}
You'll see 55 as int.
s...
An explicit value for the identity column in table can only be specified when a column list is used
...tead of
SET IDENTITY_INSERT archive_table ON;
INSERT INTO archive_table
SELECT *
FROM source_table;
SET IDENTITY_INSERT archive_table OFF;
you need to write
SET IDENTITY_INSERT archive_table ON;
INSERT INTO archive_table (field1, field2, ...)
SELECT field1, field2, ...
FROM source_table;...
Best way to alphanumeric check in JavaScript
... ñ does not fall into the pattern however fully valid UTF-8 char.
– Oybek
Apr 4 '13 at 16:35
8
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