Building Schneider Building Control system Database Background Server example project four (SQL Server query statement)

Source: Internet
Author: User
Tags sql server query

Since what is currently done is a simple class of database operations, it involves the following query statements, which are recorded here.
1. Query table name

select object_id,namenamefrom sys.tables

2. Querying column information

SELECT( Case          whenA.colorder =1  ThenD.nameElse          NULL       End) Table name, A.colorder field ordinal, a.name field name, ( Case          whenColumnProperty (a.ID, A.name,' isidentity ') =1  Then          ' √ '         Else          "'       End) Identification, ( Case          when(SELECT Count(*) fromsysobjectsWHERE(Nameinch(SELECTName fromsysindexesWHERE(id = a.id) and(indidinch(SELECTIndid fromSysindexkeysWHERE(id = a.id) and(colidinch(SELECTColid fromsyscolumnsWHERE(id = a.id) and(name = A.name)))))) and(Xtype =' PK ')) >0  Then          ' √ '         Else          "'       End) primary key, B.name type, A.length takes up bytes, ColumnProperty (a.id, A.name,' PRECISION ') asLength, IsNull (ColumnProperty (a.id, A.name,' scale '),0) asNumber of decimal digits, ( Case          whenA.isnullable =1  Then          ' √ '         Else          "'       End) allow null, IsNull (E.text,"') default value, IsNull (g.value,"') asDescription fromSyscolumns A Left JoinSystypes b onA.xtype = B.xusertypeInner Joinsysobjects D ona.ID = D.id andD.xtype =' U '    andD.name <>' dtproperties '   Left Joinsyscomments E onA.cdefault = e.id Left JoinSys.extended_properties g ona.ID = g.major_id andA.colid = g.minor_id Left JoinSys.extended_properties F onD.id = F.class andf.minor_id =0 whereB.name is  not NULL    andD.name =?Order  bya.ID, A.colorder;

3. Paging Query

select *  from (select row_number() over(orderbyas rownumber,*          fromeventwhere0and10

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

Building Schneider Building Control system Database Background Server example project four (SQL Server query statement)

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.