SQL Server: drop table primary key, without knowing its name -

-

हाय,

का उपयोग करना: SQL सर्वर डाटाबेस: नॉर्थविंड

I पीके की बाध्यता के नाम को जानने के बिना टेबल प्राथमिक कुंजी को छोड़ना है। उदाहरण के लिए, नॉर्थविंड नमूना डाटाबेस में श्रेणियाँ तालिका का उपयोग करते हुए, प्राथमिक कुंजी कॉलम 'श्रेणीआईडी' है, और प्राथमिक कुंजी नाम है 'PK_Categories'

प्राथमिक कुंजी नाम जानने के दौरान मैं प्राथमिक कुंजी को छोड़ सकता हूँ: 

  वैकल्पिक तालिका श्रेणियां ड्रॉप कंट्राइंट पीकेकेचैंस;

और मैं तालिका नाम के आधार पर तालिका के लिए प्राथमिक कुंजी नाम भी प्राप्त कर सकता हूं: 

  sysobjects से नाम चुनें जहां xtype = 'pk' और parent_obj = हालांकि, प्राथमिक कुंजी नाम को जानने के बिना, मैं तालिका की प्राथमिक कुंजी को हटाने के लिए उन्हें एक साथ नहीं रख सकता, लेकिन मैं उन्हें एक साथ नहीं डाल सकता। "Gtc: suffix =" "gtc: mediawiki-xid =  
 मैं कोशिश कर रहा हूँ:  
  वैकल्पिक तालिका श्रेणियां ड्रॉप कंट्राइंस (सिसोबैक्स से नाम का चयन करें जहां xtype = 'PK' और parent_obj = object_id ('categories'))  
 बॉब   
 
  
 = "Post-text" itemprop = "text"> 
 आपको उस के लिए गतिशील एसक्यूएल का उपयोग करना होगा, क्योंकि परिवर्तन तालिका चर या उपकुंजी स्वीकार नहीं करती है।  
  बनाओ टेबल PKTest ( आईडी इंटी प्राथमिक कुंजी); DECLARE @SQL VARCHAR (4000) SET @SQL = 'वैकल्पिक तालिका PKTEST ड्रॉप कंट्राइंस | ConstraintName | 'SET @sql = REPLACE (@sql,' | constraintName | ', (sysobjects से चयन करें नाम WHERE xtype =' PK 'और parent_obj = OBJECT_ID (' PKTest ')) EXEC (@sQL) ड्रॉप तालिका PKTest

Comments

Post a Comment

Popular posts from this blog

asp.net - Javascript/DOM Why is does my form not support submit()? -

-
This is my first time working with asp.net and javascript, so I do not know very good web resources, or Much about javascript debugging I have to find out that on line oFormObject.submit (); Microsoft JScript Runtime Error: Object does not support this property or method I am using the link to work as a button because I am terrible in aesthetics and I think That link will look more professional than a table of 50 buttons. I have read that this solution can cause problems with browsers due to pre-rendering of my links and many additional traffic and problems, but CSS gives me a button like a link, which has issues of alignment and difference seemed to. & lt ;! DOCTYPE HTML PUBLIC "- // W3C // DTD HTML 4.01 // N" "http://www.w3.org/TR/html4/strict.dtd"> & Lt; Html xmlns = "http://www.w3.org/1999/xhtml" & gt; & Lt; Head & gt; & Lt; Link rel = "stylesheet" type = "text / css" href = "defect differen
Read more

sockets - Delphi: TTcpServer, connection reset when reading -

-
I am trying to implement one for Delphi, but there are some problems with communication. Fitnesse will start my process, and give me a portmember as a command line argument. Then I should make a socket on the port number given to me, and fitness will connect to that port I am using a TCPCP server for the job: < Pre> TcpServer1.LocalPort: = ParamStr (ParamCount); TcpServer1 Active: = true; On OnEXEPT () -Event, I send the protocol version to use as specified in the protocol. Process TForm1.TcpServer1Accept (From: TOBject; ClientSocket: TCustomIpClient); Var s: ansistring; Start clientSocket. Syndrome ('slim - v 0.0', # 10); SetLength (S, 6); ClientSketts Receavebook (S, 6); End; When I call ReceiveBuf (), the process ends, and fitness throws an exception: java.net.SocketException: connection Reset I have seen what sent and received. It shows that my code sends the protocol version, fitness sends back a message, and when I try to get this message
Read more

javascript - Classic ASP "ExecuteGlobal" statement acting differently on two servers -

-
I have a strange problem that I really do not know. In addition to developing a new ASP.NET site, I have to support the old "classic ASP" site. It is written in VBScript with a batch of JavaScript functions. Many of the JavaScript functions include 'files' Everything is fine on our production system (which security is controlled by another group - this is a military installation) Debugging them once did not work I). However, I have a fix for a vague bug that needs to be fully tested and some functions do not run under the "local" copy of the website that runs on my PC. For the record, I am running IIS 5.1 on XP. The problem is that some Javascript functions are running "OK" on the production server, but when they use it as a server, they are not defined on my PC what is happening that last Programmer, for some reason, has decided to put some functions in a series of files, which according to the observations, imitate the "need_once
Read more