SQL Server

Encountered in the work, a multi-table joint query, the query out some of the field precision is too high, the decimal point to reach 8 0, now customers require the report as long as accurate to 0.01, as long as only after the decimal point to save

SQL Server has the following functions for ranking or sorting: 1, Rank: The position of each record in the result set, but the ranking may be discontinuous, for example: if there are two first in the same group, the next position in the group jumps

SQL Server partitioning process:1. Create file groupsAlter Database Add [Filegroup1]2. create file Group fileAlter Database Add file (name=n'file1', filename=n'C:\db\data\ FILE1.NDF', size=5MB, filegrowth=5MB)to[ Filegroup1]3. Create a partition

functions commonly used to intercept strings in SQL Server:1. Left (character_expression, integer_expression) function Description: Left ('Source String','to intercept the leftmost number of characters') returns the specified number of characters

I. Pre-INSTALLATION Preparation: SQL Server 200R2 installation packageSecond, the installation of SQL SERVER2008R21. Open the SQL SERVER2008R2 installation package and locate the Setup.exe2. Double-click the setup.exe installation file for SQL

After the stored procedure has been written, it is not certain that the requirements of the business logic are fully complied with and can be debugged to determine compliance. Debugging is available through Visual Studio, and there are three

Problem Description:When inserting or modifying data, when there are (Korean, Japanese) or other characters in the inserted (modified) field, the inserted characters become garbled or piles of question marks.Workaround:In Microsoft SQL Server , The

I. Description of exists1.1 The return value of the EXISTS (including not EXISTS) clause is a bool value. There is a subquery inside the exists (SELECT ... From ...), which I call an inner query statement for exist. The inner query

One, operand vs. asp Object type ado Jdbc Connection object SqlConnection Java.sql.Connection Execution Object SqlCommand Java.sql.Statement Precompiled execution

Create a new stored procedure in the master database-process Deadlocks-view the current process, or deadlock process, and automatically kill the dead process-because it is for dead, so if there is a deadlock process, you can only view the deadlock

Today when Sqlerver restore the database, the card is there to prompt the "restoring ..." status, the database cannot be manipulated at this time, let me show you how to solve some problemsWorkaround: The code is as follows Copy

The SQL Server2005 database comes with a sort function row_number (),The list is:Syntax: Row_number (): Over (clause)1. Use the Row_number () function to number:Select Row_number () over (order by Sage) ID, * from StudentPrinciple: Sort by sage

Blog Park has an article "Small and convenient ORM class Library--petapoco" describes the Petapoco call stored procedures:Call the stored procedure db. Execute ("Exec Procsomehandler @0, @1", 3,"2011-10-01");Calling a stored procedure with an output

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Data.SqlClient; namespace SQLHelper { class Program { static void Main(string[] args) {

Alter procProc_getpage@tbname varchar( -),@field varchar( $)='*',@orderfield varchar( -),@ordertype Char( -)='ASC',@pagesize int ,@pageindex int,@strWhere varchar( -)="' asbeginDeclare @sql varchar(Max)if(@strWhere<>"')Set

Because of accidental operation, in Enterprise Manager mistakenly deleted the database table, then mistakenly deleted the table data what to do?A lot of people's usual practice is to recover from the log first, if the recovery from the log is not

1. Create a partition Partitioning steps: 1. Create a partition function 2. Create a partition Schema 3. Create a partitioned index (clustered) --1. create partition function DECLARE @dt datetime SET @dt = ' 20030901 ' Create

---restore content starts---　　　Cursor: A cursor is a mechanism for extracting one piece at a time from a result set containing multiple dataCursors are characterized by: More flexibility in retrieving the

Objective:Database operation can not avoid the operation of the data, the operation method is similar, original aim, write a variety of flower operation of the fundamental additions and deletions to check four operations, today we will say three

--turn on remote optionsexecsp_configure'Show advanced Options',1Reconfigureexecsp_configure'Ad Hoc Distributed Queries',1Reconfigure--Method 1:SELECT Top 5 * from OpenDataSource('SQLOLEDB','Data source=192.168.2.208; User Id=sa; [Email protected]')