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MFC Grid control 2.27 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
...struction
Number of rows and columns
Sizing and position functions
Reordering rows and columns
Cell Editing and Validation
Structures, defines and Messages
Colours
General cell information
Operations
Printing
History
Introduction
After pushing the CList...
NULL values inside NOT IN clause
...Logic can be a bit confusing at first but it is essential to understand in order to write correct queries in TSQL
Another article I would recommend is SQL Aggregate Functions and NULL.
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How do I generate a random int number?
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In order to reuse it, you can declare rnd as static and/or set it just once when initializing the code.
– Junior Mayhé
Feb 10 '18 at 19:09
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Rank function in MySQL
...rRank := @curRank + 1 AS rank
FROM person p, (SELECT @curRank := 0) r
ORDER BY age;
The (SELECT @curRank := 0) part allows the variable initialization without requiring a separate SET command.
Test case:
CREATE TABLE person (id int, first_name varchar(20), age int, gender char(1));
INSERT...
LINQ to SQL Left Outer Join
..., for example:
var query = from c in db.Customers
join o in db.Orders
on c.CustomerID equals o.CustomerID into sr
from x in sr.DefaultIfEmpty()
select new {
CustomerID = c.CustomerID, ContactName = c.ContactName,
OrderI...
What is the “right” way to iterate through an array in Ruby?
...eys than the values, and I am usually dealing with keys and values in that order, either key => value or hash[key] = value.
If you want duck-typing, then either explicitly use a defined method as Brent Longborough showed, or an implicit method as maxhawkins showed.
Ruby is all about accommodati...
Can git ignore a specific line?
...atedly lost on check out, rebase, or pull, but I've a specific use case in order to make use of it.
Just git stash save "proj1-debug" while the filter is inactive (just temporarily disable it in gitconfig or something). This way, my debug code can always be git stash apply'd to my code at any time ...
How to declare a type as nullable in TypeScript?
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In order to set null or undefined value without compilation error, the tsconfig "strict" option must be removed or equals to "false" "strict" : false
– Nicolas Janel
Mar 19 '19 at 8:38
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How do I see the last 10 commits in reverse-chronological order with SVN?
...t X number of commits along with commit messages, in reverse-chronological order (newest commit first)?
4 Answers
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Remove Identity from a column in a table
... you want to do this without adding and populating a new column, without reordering the columns, and with almost no downtime because no data is changing on the table, let's do some magic with partitioning functionality (but since no partitions are used you don't need Enterprise edition):
Remove al...