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Does MySQL foreign_key_checks affect the entire database?
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Let's say you have a table with referencing id's, but some referenced records are missing. If you add the foreign key (FK) while FOREIGN_KEY_CHECKS are ON, then Mysql will raise an error and refuse to add the FK, because of the broken reference. ...
jquery change class name
...<option>Jen</option>
</select>
</div>
<table id="theTable">
<tr><td id="cellToChange">Bob</td><td>Sam</td></tr>
<tr><td>Sue</td><td>Jen</td></tr>
</table>
</body>
So...
Can JSON start with “[”?
... this is
realized as an object, record,
struct, dictionary, hash table,
keyed list, or associative array.
An ordered list of values. In most languages, this is realized as an
array, vector, list, or sequence.
It then goes on to describe the two structures as:
Note that ...
How to pass “Null” (a real surname!) to a SOAP web service in ActionScript 3
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On the xkcd note, the Bobby Tables website has good advice for avoiding the improper interpretation of user data (in this case, the string "Null") in SQL queries in various languages, including ColdFusion.
It is not clear from the question that this is...
How Drupal works? [closed]
...er().
It's a bit clunky, but due to a PHP quirk (it keeps an internal hashtable of all loaded functions), it allows Drupal to quickly check for listeners just by iterating over a list of installed plugins. For each plugin it can call function_exists() on the appropriately named pattern, and call th...
vs
...nicode TR, the C++ standard library provides the 25 C headers, as shown in Table 151.
Which include:
<assert.h> <float.h> <math.h> <stddef.h> <tgmath.h>
<complex.h> <inttypes.h> <setjmp.h> <stdio.h> <time.h>
<ctype.h> <iso646.h&g...
how to convert a string to date in mysql?
...d, you can do
SELECT STR_TO_DATE(yourdatefield, '%m/%d/%Y')
FROM yourtable
You can also handle these date strings in WHERE clauses. For example
SELECT whatever
FROM yourtable
WHERE STR_TO_DATE(yourdatefield, '%m/%d/%Y') > CURDATE() - INTERVAL 7 DAY
You can handle all kinds of date/t...
How to use XPath contains() here?
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Paste my contains example here:
//table[contains(@class, "EC_result")]/tbody
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Datatype for storing ip address in SQL Server
...r, but still retain the code-reuse of a function is to use an iTVF (inline table-valued function) instead. Here's how the first function above (string to binary) can be re-written as an iTVF:
CREATE FUNCTION dbo.itvfBinaryIPv4(@ip AS VARCHAR(15)) RETURNS TABLE
AS RETURN (
SELECT CAST(
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How to do SQL Like % in Linq?
...L2E v1 (3.5) will translate into a t-sql expression that will force a full table scan on the table you're querying unless there is another better discriminator in your where clause or join filters.
Update: This is fixed in EF/L2E v4 (.net 4.0), so it will generate a SQL LIKE just like L2S does.
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