1. Prepare
Create a base table first:
CREATE TABLE mytb1 (ID serial,name character varying,age integer);To create an index on the name field:
Create INDEX Mytb1_name_index on MYTB1 (name);
To view the MYTB1 table structure:
postgres=# \d mytb1;
Tags: handle toe test connect ant Import Export command exp GREWhat this article contains: Use commands to manipulate import and export of Oracle, Postgres, MySQL, including logging on to dataNote: I am using the Center OS operating system in the company, so both Oracle and Postgres are used in Linux and not tested in other tools, and MySQL is used on its own laptops, both under Linux and DOS commands.1.Ora
with SQL commands
\? For help with Psql commands
\g or terminate with semicolon to execute query
\q to quit
Zwcdb=>
Create a table[Plain]View Plaincopyprint?
[Email protected] data]$ psql-u zhongwc-d zwcdb-h 192.168.1.203-p 1521
Password for user zhongwc:
Psql (9.2.2)
Type ' help ' for help.
Zwcdb=> CREATE TABLE T_ZHONGWC (PID integer,pname varchar (+), constraint ZHONGWC_PID_PK pri
CREATE USER backup_user with ENCRYPTED PASSWORD ' qux94874 '; GRANT CONNECT on DATABASE foo_db to Backup_user; GRANT CONNECT on the DATABASE bar_db to backup_user;\c foogrant USAGE on the SCHEMA public to Backup_user; GRANT SELECT on all sequences in the SCHEMA public to Backup_user; GRANT SELECT on all TABLES the schema public to backup_user;\c Bargrant USAGE on the schema public to Backup_user; GRANT SELECT on all sequences in the SCHEMA public to B
PHP kernel learning-create PHP extension, php kernel-extension. Learning the PHP kernel-creating PHP extensions, and the php kernel-the extension has started to look at the PHP kernel for some time. now I want to learn and summarize it, today we will summarize how to create
Because the extension is used by third-party developers, some extra efforts are required to create it. Below are some general guiding principles: * expansion should be self-contained. That is to say, its external dependencies should be the least. If your extension...
Because the extension is used by third-party devel
Step by step teach you how to create ZKEACMS extension components/plug-ins and zkeacms extension ComponentsPreface
If you do not know ZKEACMS, you may want to know about it first.
ASP. net mvc open-source website construction system ZKEACMS recommendation, from this site "fight"
Official Address: http://www.zkea.net/zkeacms
: Https://github.com/SeriaWei/ASP.NET-
I think most of the eclipse plug-in developers are familiar with the concept of extension points, so when do you decide to create your own extension points? Simple to say my opinion, wrong not to joke.
Why are you talking about this problem? See some of the plug-in development of the first person, do not understand the exten
This article is to bring you the content is about to teach you a step-by-step to create a PHP extension (basic steps), there is a certain reference value, the need for friends can refer to, I hope to help you.
What are the basic steps for creating an extension? example, we will implement the following functions:
Output content:
$ php./test.php$ Hello Word
Imple
PHP Kernel Learning--Create PHP extension, PHP kernel--Extend
Start looking at the PHP kernel for a while, and now start learning to summarize, today to summarize how to create your own PHP extension.
My environment is as follows:
System: Ubuntu 14.04
PHP Version: 5.5.19
Reference excerpt: Extending your PHP with C/C
iOS8 Apple launches Wkwebview.Under iOS9, loadrequest can not load the local HTML file, if you want to use Wkwebview to fit iOS9 below, you need to judge.iOS9, the HTML file needs to be copied to the TMP path and then loadrequest.After iOS9, the Loadfileurl:allowingreadaccesstourl method is provided to load the HTML local file.Be sure to pay attention!!! Need to be in addition to the HTML file JS files and a variety of resources to be copied to the TMP path!Could not
Record my first PHP extension in this article. To create a php extension step:1.cd/soft/php-7.1.0/ext Enter PHP source directory, 2. ./ext_skel--extname=hello The generated extension, called Hello, creates a Hello folder in the current directory 3.cdhello go to the Hello folder, The most important files under the fo
Create an MFC extension DLL in Visual C ++We compiled an example of the extension class and encapsulated it in the DLL to show you this process.Some tested windows programmers gradually release the Windows SDK, however, it is switched to an open environment that provides high-level image extraction for low-level computers in windows. One of the main benefits of t
Use phpize to create the Cannotfindconfig extension for php. m4. original address: lxsym. blog.51cto. com1364623293862 let me talk about how to make a php extension. First of all, we need to have a set up php environment. I installed php in usrlocalphp and, of course, configured php through a php configuration. ini path, but use phpize to
When surfing the internet, you often switch between multiple search engines. However, it is troublesome to switch between search engines that come with chrome. You need to configure one configuration for another engine, therefore, I also found multiple search extensions in the chrome app store. They all have their own advantages, but they cannot have the functions I want at the same time, for example, menu item grouping, word search, Custom Search addition, or synchronization Configuration betwe
Create and delete an application view file through the ArtisanView extension package in Laravel 1. Introduction
This extension package adds two Artisan commands related to the view to the Laravel application, so that we can use the Artisan command to create and manage the view file, which is further a relief of product
Let's first create a very simple extension, which has almost nothing except a function that uses its integer parameter as the return value. The following ("Example 3-2 is a simple extension") is an exampleCode:
Example3.2A simple extension
/* Include standard header */# Include "php. H"
/* Declaration of functio
C # can create its own extension methods extension method:Refer to this article, "Judging whether it is empty and then assigning value" http://www.cnblogs.com/insus/p/8004097.html, the first three methods, all appear null this keyword, in the judgment, you need = = NULL or!=null.In fact, you can create a C #
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