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How to get next/previous record in MySQL?
...ded the results ordered by date since I can't rely on the ID field as a sortable column. Here's the solution I came up with.
First we find out the index of the desired record in the table, when it's sorted as we want:
SELECT row
FROM
(SELECT @rownum:=@rownum+1 row, a.*
FROM articles a, (SELECT @...
Converting HTML files to PDF [closed]
...exisiting (X)HTML-document. The input files (reports) use a rather simple, table-based layout, so support for really fancy JavaScript/CSS stuff is probably not needed.
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What is the maximum length of latitude and longitude? [closed]
...nd a 0.1 decimal degree difference represents a ~11 km distance.
Here is a table of # decimal places difference in latitude with the delta degrees and the estimated distance in meters using 0,0 as the starting point.
decimal decimal distance
places degrees (in meters)
------- --------- -...
Which is the fastest algorithm to find prime numbers?
...e needed in code, perhaps when you need to
dynamically find a prime hash table size within certain ranges. If N
is something on the order of 2^30, do you really want to do 30000
division tests to search for any factors? Obviously not.
The common practical solution to this problem is a sim...
Difference between “!==” and “==!” [closed]
...
I fell under the same illusion of being able to use a <table>.
– Chad Harrison
Sep 7 '12 at 15:27
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Disable migrations when running unit tests in Django 1.7
...been run, the "migrate" command treats
an app as unmigrated, and creates tables directly from the models just
like syncdb did in 1.6. I defined a new settings module just for unit
tests called "settings_test.py", which imports * from the main
settings module and adds this line:
MIGRATIO...
Creating a constant Dictionary in C#
...y a nice one; remember that according to the C# specification, switch-case tables are compiled to constant hash jump tables. That is, they are constant dictionaries, not a series of if-else statements. So consider a switch-case statement like this:
switch (myString)
{
case "cat": return 0;
ca...
Unable to generate an explicit migration in entity framework
...guration.
The solution was simply to update the ContextKey in the database table "__MigrationHistory" (or revert the value in the Configuration class I guess). The ContextKey and the Namespace in your application should match.
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Is there a way to auto expand objects in Chrome Dev Tools?
...
Consider using console.table().
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Change SQLite default settings
we know when type .mode column let me see tables like column
And .headers on , we can see the header of tables.
But I want to know if there is any way make the two default settings?
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