[reprint] C ා prevent SQL injection and filter dangerous character information

However, in java development, C development or PHP development, we need to pay attention to the security of SQL injection attack. In order to ensure that the data submitted by the client will not generate the risk of SQL injection, we need to filter the received data with dangerous characters to prevent the risk of SQL injection attack. Here is ...

Posted on Thu, 05 Dec 2019 16:20:38 -0500 by damonps2003

[Python tutorial] 09. Database operation

outline data base SQL operation ORM Practice data base Database contains relational database and non relational database.Relational: SQLite, MySQL, Oracle, SqlServer, etc.Non relational: Hbase, MonogoDB, Elasticsearch, redis, etc.What we're going to talk about today is the operation of relational databases. Relational databaseDatabase: conta ...

Posted on Thu, 05 Dec 2019 14:54:13 -0500 by bradley252

[reprint] C ා store the pictures in the database in the form of binary stream

In the process of C ා application development, pictures are usually stored in the file system, of course, pictures can also be stored in the database in a binary way, but it is generally not recommended to store them in the database, because the space occupied by pictures is still quite large, and in special cases, pictures can be considered to ...

Posted on Thu, 05 Dec 2019 07:40:29 -0500 by Dr.Flink

ASH production practice I of Oracle10G

ASH practice 1 of Oracle10G ASH is a new feature of Oracle 10g, which is very valuable for DBA. It is based on V $sssion and samples once a second, Records events waiting for an active session. The information of ASH can be viewed through two kinds of data dictionary views. One part is v $active? Session? History, in which the data is relative ...

Posted on Wed, 04 Dec 2019 13:37:21 -0500 by robotman321

Storage - massive data - (mycat core concepts and advanced)

target Master big data processing scheme and HA of database Master why database middleware is needed and what is database middleware Master the characteristics of database middleware required by different scenarios Master the key points of database middleware design   Core concept understanding and working principle review How to solve ...

Posted on Wed, 04 Dec 2019 11:52:56 -0500 by manohoo

Nodejs operation Sql Server

Intro Recently, the project needs to crawl some data, the data is encrypted, the front-end js is confused, the ajax request is hook, some complex, and finally plans to use puppeter to crawl the data. Puppeter is a project that the Google team is maintaining. The original intention is mainly to do automatic testing of web pages. The official Hea ...

Posted on Wed, 04 Dec 2019 11:45:18 -0500 by breadcom

Imitating Weibo to publish the dynamic, php learning notes

I've been learning everything about the front-end. I'm a little interested in php recently. I've studied the php files in the background of the previous project, and I've also watched some videos. I've made a small function to post the dynamic microblog. I'm just getting started. Record the learning process. Welcome to php's guidance and critic ...

Posted on Wed, 04 Dec 2019 07:27:18 -0500 by davidtube

TDengine+Grafana Data Visualization

The company's main business is to provide SMS mass distribution services to enterprise customers, with a strong internal operation monitoring platform.The daily SMS business is huge, so the monitoring platform needs to use time series database to statistics and monitor the massive SMS sent by geographic regions, operators, reception status and ...

Posted on Wed, 04 Dec 2019 05:06:50 -0500 by phpretard

How does the line record length statistics come from GDB debugging Mysql priority queue sorting algorithm

background Next https://mengkang.net/1328.html We continue to kowtow.Last article GDB debugging Mysql practice (3) priority queue sorting algorithm research (1) The reason why the row UU size in Experiment 3 is 24 is analyzed. In other experiments, the row size was 36, and the number of scanning lines was not as expected. Let's explore this art ...

Posted on Wed, 04 Dec 2019 03:36:02 -0500 by mattcooper

Analyze the Gaud map api to obtain the provincial and urban areas, and generate the latest three-level linkage sql table

Preface: In the recent project, the three-level information of provincial and urban areas in China has been used, but the information found on the Internet is relatively old. It doesn't match the latest regional information. Later, I saw that there was such information on the map of Gaode, so I analyzed the api interface and generated the sql i ...

Posted on Tue, 03 Dec 2019 21:46:01 -0500 by keithwjones