how to compare two table data in sql server

Label:one of the fields in a table student (Sno, sname, age) sname type nchar (TEN) Change to int Save the Times wrong. This is the default setting for SQL Server itself, which defaults to a type that cannot be modified. You only need to remove prvent saving changes in the Tool->option->designer->table and Database d

Insert into Phone2 (ph,attr,type,carrier) Select Top + ph,attr,type,carrier from phoneCopy the field of the table phone and the first 1000 data to the Phone2 tableA table in the database deletes duplicate data (the Phone2 table cannot exist)SELECT DISTINCT * to Phone2 from p

Label:One, SQL Server table data copied to Excel1, new query, with SQL statements to read out the table data2, then, select the data, right-click, copy (also can be clicked together wit

Requirements: Oracle database, b library C library, some tables have inconsistent table structure, now requires the C library as the standard, synchronous Update B library table structurePL/SQL connects to the C library,Tools--Compare User Objects. --Select the table that ne

Many friends asked SQL server database "generate scripts" and exported only the SQL scripts of the database, while the data in the table is still not exported. It is very simple. Take a look at the Tutorial: Note: I use SQLServer2008 here. Other versions should be similar.

Mysql database users may often export database files as SQL files, but can SQL Server export SQL files? The answer is yes. Let's take a look at the following steps. Mysql database users may often export database files as SQL files, but can

You can use the "generate SQL script" tool that comes with SQL Server 2000 to generate SQL scripts for creating tables, views, and stored procedures. So can we generate SQL scripts for the data in the

Import data to the SQL server data table in batches from the text ================================ ============================ Author: locker (http://locker.itpub.net) Posted on: 2004.11.26 Category: SQL

1 Declare @name varchar( +)2 Declare @sql varchar( +)3 4 if object_id('tempdb: #space') is not NULL Drop Table#Space5 Create Table#Space(Namevarchar( -), Rowsbigint, reservedvarchar( A), datavarchar( A), index_sizevarchar( A), unusedvarchar( A))6 7 DeclareSpcursorLocal for Select '['+Name+']' fromsysobjectswhereType= 'u'8 OpenSP9 FetchSp into @nameTen while @

Only the SQL scripts of the database are exported, but the data in the table is still not exported. Next we will solve this problem for you. If you are interested, refer to the tutorial. Only the SQL scripts of the database are exported, but the data in the

Today, a vendor asked me a question. If you want to change the data type of a field in a table, whether it is a field type in View also responds to automatic changes. At that time, I thought it would be changed automatically. However, the vendors said they had tried and won't change it. They asked me if I had any other choice but to try again. At that time, I thought of the storage process sp_refreshview f

Usage scenarios:For example, you need to query all student numbers with scores greater than 95, separated by commas into a string, from the Student score table.To prepare the test data:CREATE TABLE score (ID int,score int)INSERT into score values (1,90)INSERT into score values (2,96)INSERT into score values (3,99)It is now necessary to query the result string "2,,3" with a single statement.The SQL

SQL Server 2005 SP2 brought us the vardecimal function. At that time, a new storage format-vardecimal was introduced for the decimail and numeric data types. The vardecimal storage format allows storage of the decimal and numeric data types as a variable length column. This feature allows the original fixed-length deci

Many friends asked SQL server database "generate scripts" and exported only the SQL scripts of the database, while the data in the table is still not exported. It is very simple. Take a look at the Tutorial: Note: I use SQLServer2008 here. Other versions should be similar.

The example in this article describes a method for customizing the data format for a SQL Server data table field. Share to everyone for your reference, specific as follows: --Modify the field CompanyID in Datasheet sys_company custom self-add constraint ALTER

SSH Skeleton Code:Public String Delerubbishad () {int deleadcount = 0;RUBBISHADTP = CONFIGDAO.RUBBISHADTP ();Collection of ad images in the databasemapFile Adfile = new file ("C://program Files//apache software foundation//tomcat 6.0//webapps//plpwmanagers// Yesilovepjustdoit2014//adimg ");String adarray[];Adarray=adfile.list ();An array of ad images on the server, since the IE storage mechanism, the resulting files from the