SQL Server

    --- Delete the original table data and reset the auto-incrementing column truncate table tablename -- reset the auto-incrementing field of the table in the truncate mode, retain data DBCC checkident (tablename, reseed, 0) -- set to allow

The stored procedure is as follows: Create procedure testsp@ ID intAsReturn @ ErrorGo Online examples use SQL objects to transmit parameters, so they are written in the same format.CodeThe result cannot contain parameters. The Code is as follows:

A transaction is a single unit of work. If a transaction succeeds, all data modifications made in the transaction will be committed and become a permanent component of the database. If the transaction encounters an error and must be canceled or

SQL Server SDE during database migration Sqlserver2008 user group or role ***** 'existing problems in the current database SQL Server SDE during database migration When you add a user to a database, the following message is displayed:The user,

go Create Function [DBO]. [split] ( @ sourcesql varchar (max), @ strseprate varchar (10) ) Returns @ temp table (line varchar (max )) as begin declare @ I int set @ sourcesql = rtrim (ltrim (@ sourcesql )) set @ I = charindex (@ strseprate,

-- 1. view Database Version Information Select @ version -- 2. view All Database names and sizes exec sp_helpdb -- 3. view the operating system parameter exec master of the machine where the database is located .. xp_msver -- 4. view the database

The page is used for website creation today, though. net itself has paging controls, but the efficiency is not flattering. So we use the stored procedures of the sqlserver database to implement paging. We have summarized the following four solutions

A netizen posted a message in one of my blog posts. I took it out and sorted it out. The problem is as follows: Our database has encountered a bottleneck in the process of increasing users. The database has a high frequency of concurrent

Databases in SQL Server are composed of one or more data files and one or more transaction log files. Data Files mainly store database data, including the database content structure, data pages, and index pages. So what is transaction log? It is

SQL statement syntax for changing columns in the SQL Server database: How to calculate the area: Select lznd,Sum (case when lzfs = 'lease 'Then isnull (jflzmjm, 0) + isnull (yflzmjm, 0) else 0 end) as mjm_cz,Sum (case when lzfs = 'shareholding 'Then

Create a table with different IDS Based on the description, Requirements: 1. The administrator ID is auto-increment from 1000 and the auto-increment value is 1. 2. the ID of the department head increases from 2000 and the increment is 1. 3. the ID

Create Table # T (out_no varchar (10) primary key, date datetime, part varchar (30), qty numeric (12, 4), price numeric (12, 4 )) insert into # tselect 'a01', '2017-1-11 ', 'b001', 2009, 100 Union allselect 'a02', '2017-1-12 ', 'b002', 1.1, 1.3

The code is all pasted out, mainly because the data in the Excel table must match the data type in the database. Here, the fields in the Excel table are: Name, gender, class, student ID, initial password The fields in the SQL Server table tb_users

Today, we will spend some time learning about SQL Server databases, including how to create databases, create tables, SQL Server data types, data integrity, and design databases, SQL Server security models and T-SQL statements. I hope you will have

A trigger is used to perform certain actions when adding, modifying, or migrating data to a specified table. SQL Server 2005 also provides database-level triggers, but here I only describe table-level triggers. Because the trigger starts a hidden

1. nested loop join (nested loop join) Algorithm: The idea is quite simple and straightforward: For each tuples in relation R, R compares them with every tuples in relation s in the join condition field and filters out the qualified tuples. The

Regardless of your professional level, it is often helpful to learn new skills and best practices from other IT experts. This article contains some advanced SQL Server development skills I have encountered. I hope some of these skills will be

How to quickly master SQL Server lock concepts Author: anonymous name I. Why should I introduce locks? When multiple users concurrently perform database operations, the following data inconsistency occurs: ◆ Update loss A and B read and modify the

-- Create the create function [DBO] to take the first letter of a Chinese character (the third edition). [f_getpy_v3] (@ Col varchar (1000) returns varchar (1000) as begin declare @ Cyc int, @ Len int, @ SQL varchar (1000), @ char varbinary (20)

When we mention the number of data entries in a single table, we will think of select count (*) from tablename What if we want to get the number of all tables in the database? Let's look at several of the most common methods: -- Method 1 if exists (