SEARCH KEYWORD -- SQL Injection
Change password of postgres account in Postgres
When installing Postgres on Windows, there is some default account created for user to login. One of them is postgres, but we often don;t know what's the password for this account when we first login using this account. We need to change the password for this account. How to change it? Step 1. Modify the pg_hba.conffile Go to the /data/ and open the pg_hba.conf. # TYPE DATABASE USER ...
Postgres,password, user account 2013-03-04 01:51:02
Update & Delete Kubernetes resources in one-line command
It recently troubles me that my GKE cluster is managing more and more resources and causing difficulties in maintenance, one of which involves how to delete resources properly. Next, I will explain step by step the difficulties I encountered in my work and how I finally used the combination of bash commands and kubectl to implement the edition of Kubernetes objects through one-line command. In general The following are the basic operations that almost every Kubernetes user takes. Check ðŸ‘...
KUBERNETES 2020-11-01 04:16:47
Which programming language should I learn first?
Recently I saw somebody asked a question in a forum, the question is "Which programming language should I learn first?". Then someone answered this question. His answer:Depends. To program in an expressive and powerful language: PythonTo get a website up quickly: PHPTo mingle with programmers who call themselves “rockstarsâ€: Ruby.To really learn to program: C.To achieve enlightenment: Scheme.To feel depressed: SQLTo drop a chromosome: Microsoft Visual BasicTo get a guaranteed, m...
Programming language,Learn,JavaScript,C 2012-04-29 02:59:17
Do You Make These 5 Database Design Mistakes?
Look, everyone makes mistakes. It’s true. But not all of us have the chance to make mistakes that end up costing millions of dollars in hardware and production support costs. Any one of the following five mistakes listed below will add additional costs to your company. It’s guaranteed. The costs could be hardware related (extra disk space, network bandwidth), which tend to add up quickly. The costs are also support related (bad performance, database re-design, report cre...
Database design,Mistake,Advice,Data type,Compatibility 2012-01-03 11:25:13
SQLite C/C++ function interfaces
Some simple introduction to the SQLite function interfaces. First let's check some error codes defined in SQLite3 (They are in SQLite3.h file in the SQLite installation).#define SQLITE_OK 0 /* Successful result */ /* beginning-of-error-codes */ #define SQLITE_ERROR 1 /* SQL error or missing database */ #define SQLITE_INTERNAL 2&nb...
SQLite,Function interface,C/C++ 2012-07-04 12:23:43
Top 5 Reasons Not to Use Hadoop for Analytics
As a former diehard fan of Hadoop, I LOVED the fact that you can work on up to Petabytes of data. I loved the ability to scale to thousands of nodes to process a large computation job. I loved the ability to store and load data in a very flexible format. In many ways, I loved Hadoop, until I tried to deploy it for analytics. That’s when I became disillusioned with Hadoop (it just "ain't all that"). At Quantivo, we’ve explored many ways to deploy H...
Cloud computing,Hadoop,Analytics 2012-04-17 13:43:26
SQL Grammar Summary
æ•´ç†äº†ä¸€ä¸‹ï¼Œå¸Œæœ›å¯¹å¤§å®¶æœ‰ç”¨SQLè¯å¥å¤§å…¨ --è¯ å¥ åŠŸ 能--æ•°æ®æ“作SELECT --从数æ®åº“表ä¸æ£€ç´¢æ•°æ®è¡Œå’Œåˆ—INSERT --å‘æ•°æ®åº“è¡¨æ·»åŠ æ–°æ•°æ®è¡ŒDELETE --从数æ®åº“表ä¸åˆ 除数æ®è¡ŒUPDATE --æ›´æ–°æ•°æ®åº“表ä¸çš„æ...
SQL,Query,Summary,Select,Update,Delete,I 2011-05-20 12:04:55
Do You Morph Into A Different Programmer?
Every experience you have as a software developer should change you in some way. And I don’t just mean growing older by virtue of time passing. Everything you do should evolve your understanding of your craft (and/or related skills) or your understanding of yourself – which ultimately achieves the same goal. I am not just talking about major milestones in your software development career like switching jobs, becoming a leader/manager or starting you own company. Every job, ev...
Programmer,Steps,Process,Developer 2011-08-18 08:59:01
insertAdjacentHTML() Enables Faster HTML Snippet Injection
In Firefox 8, we’ve added support for insertAdjacentHTML(). It’s an ancient feature of Internet Explorer that has recently been formalized in HTML5 and then spun out into the DOM Parsing specification. The bad news is that Firefox is the last major browser to implement this feature. The good news is that since other major browsers implement it already, you can start using it unconditionally as soon as the Firefox 8 update has been rolled out to users.Basic Usage...
InsertAjacentHTML,Firefox,HTML5,DOM 2011-11-10 10:52:00
Understanding database, instance and schema in Oracle database
Oracle database is the most popular database system among enterprises. To start working on Oracle database, some concepts must be understood first. They include database, instance, schema and user etc. And among these concepts, some have different meanings from those in other database systems such as MS SQL, MySQL, DB2. On the web, there are already some good posts which explain different concepts such as Ask Tom's database vs instances, Difference between database vs user vs schema. In this pos...
DIFFERENCE,DATABASE,ORACLE DATABASE,INSTANCE,SCHEMA,USER 2016-12-14 23:30:56
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