querying microsoft sql server training

With regard to the use of SQL Server Profiler, there are already many tutorials on the web, such as this article: SQL Server Profiler: How to use and metrics. Microsoft Official Documentation: https://msdn.microsoft.com/zh-cn/library/ms179428 (v=

1. Get all database names:SELECT Name from Master. sysdatabases ORDER by Name2. Get all table names:SELECT Name from DatabaseName. SysObjects Where xtype= ' U ' ORDER by Namextype= ' U ': represents all user tables;xtype= ' S ': denotes all system tables;3. Get all field names:SELECT Name from syscolumns WHERE id=object_id (' TableName ')in Oracleselect * from User_tab_columns;select * from User_tables;This is the table and field information below the current user query. Original address: http:/

Install the tool when the VS2008 installed vs comes with the SQL tools, waiting for me to install SQL Server R2 when the "earlier version of Microsoft Visual Studio 2008" problem, found on the Internet solution is as follows :------for 32-bit systems (I am a bit of a 64-bit system this is all right.) Installing

Tags: io os ar data Art div sp on CContains the user name, the database in which the SQL statement was executed, the execution start time, the driver, the host nameSELECT [Spid] = session_id, ecid, [Database] = db_name (sp.dbid),[User] = Nt_username, [Status] = Er.status,[Wait] = Wait_type, [individual Query] = SUBSTRING (Qt.text, ER.STATEMENT_START_OFFSET/2, case when Er.statement_end_off Set =-1 Then LEN (CONVERT (NVARCHAR (MAX), Qt.text)) * 2 ELSE

SELECT [Spid] =session_id, Ecid,[Database] = db_name(sp.dbid),[User] =Nt_username,[Status] =Er.status,[Wait] =Wait_type,[individual Query] = SUBSTRING(QT.text, Er.statement_start_offset/ 2, ( Case whenEr.statement_end_offset= - 1 Then LEN(CONVERT(NVARCHAR(MAX), Qt.text)) * 2 ELSEEr.statement_end_offsetEND -Er.statement_start_offset)/ 2), [Parent Query] =Qt.text, Program=program_name, Hostname, Nt_domain, Start_time fromsys.dm_exec_requests erINNE

Today, after reloading the system, I need to install the development tools, I use the development tools are visual Studio2008 and SQL Server2008r2, when the installation of the visual Studio2008 in the database when the problem occurs:Workaround:Install patches. Download installationhttp://www.microsoft.com/zh-CN/download/details.aspx?displaylang=enid=13276The rule "earlier versions of Microsoft Visual Stud

For example: Asked to select the No. 3000 page of tbllendlist records, each page 100 records. ---------- Method 1: ---------- Select Top * from Tbllendlist where Fldserialno not in ( Select Top 300100 fldserialno from Tbllendlist ORDER BY Fldserialno ) ORDER BY Fldserialno ---------- Method 2: ---------- SELECT TOP 100 * From Tbllendlist WHERE (Fldserialno > (SELECT MAX (Fldserialno) From (SELECT TOP 300100 Fldserialno From Tbllendlist ORDER by Fldserialno) (as T)) ORDER by Fldserialno Method 1

For example, you must select the 3,000th-page records in tbllendlist, with 100 records on each page.----------Method 1:----------Select top 100 * from tbllendlistWhere fldserialNo not in(Select top 300100 fldserialNo from tbllendlistOrder by fldserialNo)Order by fldserialNo----------Method 2:----------Select top 100 *FROM tbllendlistWHERE (fldserialNo>(Select max (fldserialNo)FROM (select top 300100 fldserialNoFROM tbllendlistOrder by fldserialNo) as t ))Order by fldserialNoMethod 1: fast execut

Label:SELECT TOP--Creation timeQs.creation_time,--Query statementsSUBSTRING (St.text, (QS.STATEMENT_START_OFFSET/2) +1,(Case Qs.statement_end_offset WHEN-1 then datalength (st.text)ELSE qs.statement_end_offset End-qs.statement_start_offset)/2) + 1) as Statement_text,--Execute textSt.text,--Execution PlanQs.total_worker_time,Qs.last_worker_time,Qs.max_worker_time,Qs.min_worker_time fromsys.dm_exec_query_stats QS--Key wordsCross APPLYsys.dm_exec_sql_text (qs.sql_handle) STWHEREqs.creation_time bet

Sometimes, you need to know what SQL Server executes, and you can use the following method: SELECT TOP 1000 -Create Time qs.creation_time, -query statement SUBSTRING (St.text, ( QS.STATEMENT_START_OFFSET/2) +1, (case Qs.statement_end_offset WHEN-1 then datalength (st.text) ELSE qs.statement_end_offset End-qs.statement_start_offset)/2) + 1 ) as statement_text, --Execute text st.text, -execution plan

Tags: isnull font name ROM null arch weight 2.x arcTable information field information in SQL Server These things are also placed in the system tables, and the following SQL statement is used to query the field information for a table. SelectT1.name Table_name,t2.namecol_name, T3.name+'('+Convert(varchar( $), T2.length)+')'Datatype,t2.isnullable fromsysobjects T1

Label:Original: Querying data in an Excel table in SQL Server for various problems encounteredSELECT * from OpenDataSource (' microsoft.jet.oledb.4.0 ', ' Data source= ' D:\KK.xls "; User id=admin; password=; Extended properties=excel 5.0 ') ... [sheet1$] Questions:msg 15281, Level 16, State 1, line 1thSQL Server bloc

For example, you must select the 3,000th-page records in tbllendlist, with 100 records on each page.----------Method 1:----------Select top 100 * from tbllendlistWhere fldserialNo not in(Select top 300100 fldserialNo from tbllendlistOrder by fldserialNo)Order by fldserialNo----------Method 2:----------Select top 100 *FROM tbllendlistWHERE (fldserialNo>(Select max (fldserialNo)FROM (select top 300100 fldserialNoFROM tbllendlistOrder by fldserialNo) as t ))Order by fldserialNoMethod 1: Fast execut

SELECT TOP +--Create Time Qs.creation_time,--Query Statement SUBSTRING (St.text, (Qs.statement_start_offset/2)+1, (case Qs.statement_end_offset when-1Then datalength (st.text) ELSE Qs.statement_end_offset End-Qs.statement_start_offset)/2) +1) as Statement_text,--executes the text st.text,--Execution Plan Qs.total_worker_time, Qs.last_worker_time, Qs.max_worker_time, qs.min_worker_time from Sys.dm_exec_query_ Stats QS--keyword Cross APPLY sys.dm_exec_sql_text (qs.sql_handle) ST WHERE qs.creation_

SELECT TOP 1000--Creation timeQs.creation_time,--Query statementsSUBSTRING (St.text, (QS.STATEMENT_START_OFFSET/2) +1,(Case Qs.statement_end_offset WHEN-1 then datalength (st.text)ELSE qs.statement_end_offset End-qs.statement_start_offset)/2) + 1) as Statement_text,--Execute textSt.text,--Execution planQs.total_worker_time,Qs.last_worker_time,Qs.max_worker_time,Qs.min_worker_timeFromSys.dm_exec_query_stats QS--Key wordsCross APPLYSys.dm_exec_sql_text (Qs.sql_handle) STWHEREQs.creation_time betwe

11. Microsoft SQL server network settingsOverview of Network ServicesSQL Server application interfaceNetwork Connection LibraryNetwork components and SQL server performanceNetwork MonitoringSummaryAfter you install

Looking at the operation log in SQL Server has always been a hassle, because Microsoft has not provided direct system tools to view the log content, although it is possible to get the non-parsed encoding of the log through the unofficial hidden interface DBCC log but it is a very troublesome thing to restore. ; He provides row information for the table structure,

Querying and analyzing MySQL, SQL Server, and Oracle databases by PAGE (Operation Manual) Querying and analyzing MySQL, SQL Server, and Oracle databases by PAGE (Operation Manual) 1. MySQL paging Query Method 1: Select * from

I. Querying the database (Sys.databases--select *from sys.databases where name= ' Select *fromwhere name='MyDatabase'Second, query table (sysobjects--select *from sysobjects where id=object_id (' Select *fromwhere id=object_id ('studentsinfo')Third, query column (Syscolumns--select COUNT (*) from syscolumns where name= ' Select from where name='sname' and id=object_id ('studentsinfo ')Iv. querying a stored

Author: Wenlong Wu1. for ms SQL SERVER databasesThere are two solutions:Modify php. ini to achieve this: Open php. ini and you can see two options: mssql. textsize and mssql. textlimit:; Valid range 0-2147483647. Default = 4096.; Mssql. textlimit = 4096; Valid range 0-2147483647. Default = 4096.; Mssql. textsize = 4096You can see that the default configuration is 4096 bytes, that is, the common request is t