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What data type to use for hashed password field and what length?
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You can actually use CHAR(length of hash) to define your datatype for MySQL because each hashing algorithm will always evaluate out to the same number of characters. For example, SHA1 always returns a 40-character hexadecimal number.
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Check if SQL Connection is Open or Closed
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Here is what I'm using:
if (mySQLConnection.State != ConnectionState.Open)
{
mySQLConnection.Close();
mySQLConnection.Open();
}
The reason I'm not simply using:
if (mySQLConnection.State == ConnectionState.Closed)
{
mySQLConnection.Open()...
Get the Last Inserted Id Using Laravel Eloquent
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@milz I have MySQL trigger that generate the uuid for a custom field named aid and I have set $incrementing = false; but It does not returned too!
– SaidbakR
Apr 8 '17 at 13:29
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relative path in require_once doesn't work
...hp'); Per the documentation, the trailing slash is omitted except for the root directory.
– Ariel Allon
Dec 17 '12 at 17:26
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Django - how to create a file and save it to a model's FileField?
... my django app along with a celery worker. The django app volume for MEDIA_ROOT was not shared with the same volume in the celery worker. Sharing the named volume fixed it (ref).
– shadi
May 12 '18 at 7:33
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How to find unused images in an Xcode project?
...re, and you just execute it from whatever directory you want to use as the root for searching for images (e.g. your project root folder). You can put it in ~/script/ for example and then go to your project root folder and run it by pointing to the script directly: ~/script/unused_images.sh
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使用App Inventor扩展实现多点触控：Scale Detector · App Inventor 2 中文网
...最终可能会将其包含在系统中。 同时，这篇笔记说明了如何使用 App Inventor 扩展来实现一个缩放检测器组件，人们可以使用它来创建对捏合和缩放手势做出反应的应用程序。
该说明在两个方面很有趣：
对于 App Inventor 用户，它...
How to exit in Node.js
... encounter, including Unix shells like Bash, the shells for databases like MySQL and PostgreSQL, and the REPLs for programming languages like Python, PHP, and Ruby. It is the only method of exiting shells I ever use.
– Mark Amery
May 23 '15 at 22:52
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Sequelize.js delete query?
...#L207-217
https://github.com/sdepold/sequelize/blob/master/lib/connectors/mysql/query-generator.js
What I found:
There isn't a deleteAll method, there's a destroy() method you can call on a record, for example:
Project.find(123).on('success', function(project) {
project.destroy().on('success',...
Checking if a field contains a string
.../reference/sql-comparison/
http://php.net/manual/en/mongo.sqltomongo.php
MySQL
SELECT * FROM users WHERE username LIKE "%Son%"
MongoDB
db.users.find({username:/Son/})
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