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How to get current date & time in MySQL?
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You can use NOW():
INSERT INTO servers (server_name, online_status, exchange, disk_space, network_shares, c_time)
VALUES('m1', 'ONLINE', 'exchange', 'disk_space', 'network_shares', NOW())
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The role of #ifdef and #ifndef
...o do something like that with the old #ifdef/#ifndef pair.
#if defined(ORA_PROC) || defined(__GNUC) && __GNUC_VERSION > 300
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How can I remove all objects but one from the workspace in R?
I have a workspace with lots of objects and I would like to remove all but one. Ideally I would like to avoid having to type rm(obj.1, obj.2... obj.n) . Is it possible to indicate remove all objects but these ones ?
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Hash and salt passwords in C#
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Actually this is kind of strange, with the string conversions - which the membership provider does to put them into config files. Hashes and salts are binary blobs, you don't need to convert them to strings unless you want to put...
What's the recommended way to connect to MySQL from Go?
... on go-wiki.
Import when using MyMySQL :
import (
"database/sql"
_ "github.com/ziutek/mymysql/godrv"
)
Import when using Go-MySQL-Driver :
import (
"database/sql"
_ "github.com/go-sql-driver/mysql"
)
Connecting and closing using MyMySQL :
con, err := sql.Open("mymysql", datab...
How to prevent browser page caching in Rails
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Finally figured this out - http://blog.serendeputy.com/posts/how-to-prevent-browsers-from-caching-a-page-in-rails/ in application_controller.rb
After Rails 5:
class ApplicationController < ActionController::Base
before_a...
MySQL Fire Trigger for both Insert and Update
...me.
1. Define the INSERT trigger:
DELIMITER //
DROP TRIGGER IF EXISTS my_insert_trigger//
CREATE DEFINER=root@localhost TRIGGER my_insert_trigger
AFTER INSERT ON `table`
FOR EACH ROW
BEGIN
-- Call the common procedure ran if there is an INSERT or UPDATE on `table`
-- NEW.id is an...
Is Javascript a Functional Programming Language?
...e are closures, and higher order functions, does Javascript deserve to be called a Functional Programming language? The main thing I think it lacks is Pure Functions, and it doesn't 'feel' like other functional languages, like lisp (although thats not really a good reason for it not to be a functio...
boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术
boost多索引容器multi_index_container实战boost多索引容器multi_index_container用法详解、性能测试等。目录：
boost多索引容器multi_index_container详解
boost多索引容器multi_index_container架构图
boost多索引容器multi_index_container性能测试
原文地...
How to convert AAR to JAR
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The AAR file consists of a JAR file and some resource files (it is basically a standard zip file with a custom file extension). Here are the steps to convert:
Extract the AAR file using standard zip extract (rename it to *.zip to make it easier)
Find the classes.jar file in the extracted files
...