how to write subquery in sql

Function sqlcheck (Str, errtype)If Instr (LCase (Str), "select")> 0 or Instr (LCase (Str), "insert")> 0 or Instr (LCase (Str ), "delete")> 0 or Instr (LCase (Str), "delete from")> 0 or Instr (LCase (Str), "count (")> 0 or Instr (LCase (Str), "drop table")> 0 or Instr (LCase (Str), "update")> 0 or Instr (LCase (Str ), "truncate")> 0 or Instr (LCase (Str), "asc (")> 0 or Instr (LCase (Str), "mid (")

Author is positive date 2011.01.26 21:30:00 reprint please indicate the source is blog http://www.2009fly.com In fact, here we mainly use the working principle of JDBC, and there is not much technical content. Through this article, we hope to give you some inspiration and deepen your understanding of the working mechanism of JDBC, at the same time, I also want to learn about the proxy design mode. Note: Write it to beginners. If you are an expert in t

Tags: update art uniq IV technology share next company. com fromTransferred from: http://blog.sina.com.cn/s/blog_4c538f6c01012mzt.html Case has two formats. Simple case function and case search function.Simple case function Case sex while ' 1 ' then ' Male ' when ' 2 ' then ' woman ' Else ' other ' END--case search function case when sex = ' 1 ' Then ' man ' when sex = ' 2 ' Then ' women ' else ' other ' ENDThe same functionality can be achieved by means of the The simple case function is relat

Reprint Address: http://www.cnblogs.com/echosong/p/3603270.htmlThe previous paragraph Echosong wrote about MySQL data synchronization to realize the separation of business read and write, today we look at SQL Server replication subscription implementation of data read and write separationSQL server replication is relatively powerful compared to MySQL replicationI

I have four tables for writing SQL statements related to the multi-table link in PHP and paging processing, tb_bookinfo. Tb_booktype. Tb_bookcase. Tb_publishing. There are correlated fields in these tables. Below is an SQL statement without paging. in do .... the output in while () is asking about the related fields of multi-table in PHP and how to write

Tags: SQL injection insert Oracle 12cPreviously heard SQL injection is a drag library, crack administrator password, Getshell and so on.Today a new path is practiced, the DBMS is Oracle 12c, the SQL injection point found is located in the INSERT statement (must be INSERT, delete, and so on, select is not), using a function to insert data into a table, constructs

Write an SQL statement. The Table companyid nbsp; is edited from xuz0917 to 2013-04-1415: 29: 26; nbsp; city nbsp; write an SQL statement This post was last edited by xuz0917 at 15:29:26Table company Id city top 1 Beijing, Shanghai Beijing 2 Jinan, Shijiazhuang Jinan 3 Beijing Sorting rules: 1. search "Beijing" t

I believe that the brothers who have used hibernate will find that after the multi-Table complex query,Worried about how the returned results are assembled into a vo.. I keep worrying about it, but I am reading it.Hibernate TransformLater, I feel that this method is quite useful. For example, there are two tables, one is the user table with some user information, the other is the post posted by the user, and there is a foreign key for the user. We need to query the Post published by a person. Th

How many update records submit how to write SQL First on the code: Require ("inc/pdo.php");$select = $dbc->prepare ("Select id,slide_name,slide_href,slide_img from Zt_slide");$select->execute ();while ($row = $select->fetch ()) {?>Focus Chart Management Submit to 12.php $id =$_post[' id '];$name =$_post[' Slide_name '];$IMG =$_post[' img '];$href =$_post[' Slide_href '];foreach ($id as $id

1) Declare @ object intDeclare @ HR intDeclare @ SRC varchar (255), @ DESC varchar (255)Declare @ TMP intDeclare @ MSG varchar (3000) Set @ MSG = 'hello. ms SQL Server 2000. I love you !!! '-- This string will be sent to the nipsan. txt file under the SQL server security category. /* Obtain the SQL Server Security token */Declare @ strpath nvarchar (512)Exec

Label:Back to CatalogA few days ago looked at a SQL Server-based load balancing and read-write separation software Moebius, the implementation of the way is good, which makes use of SQL Server database students have the opportunity to more effectively optimize the databaseLook at people have to do things, they also want to use EF to achieve a read and

This article from: http://aspxboy.com/private/5280/default.aspx It is convenient to deploy Web solutions on the. NET platform. We can use Visual Studio. NET 2003 adds a web installation project, and adds the project's main output and content files to the deployed "File System Editor" to easily complete the installation program. However, the installation program created in this way only includes the web page and ASP. install the DLL files compiled by the net program to the IIS Directory of the t

tool to Connect to MySQL) 1 MySQL itself default weak password 2) through other vulnerabilities (such as injection) to obtain the root password of MySQL 2. The physical path of a known web site 1) in the background of the phpMyAdmin " variable "tab page, you can see the physical path of MySQL, so as to infer the physical path of the site 2) Obtain the physical path of the Web site through other web vulnerabilitiesThe core of Getshell through phpMyAdmin is the operation of file