sql server compare two tables for differences

primary key)Insert into # mytemptable values (1) If a local temporary table is created by a stored procedure or is executed by multiple users at the same timeProgramSQL Server must be able to differentiate the tables created by different users. Therefore, SQL Server adds a digital suffix to the table name of each lo

Excel|server SET ansi_nulls off Go SET NOCOUNT on Go SET LANGUAGE ' Simplified Chinese ' Go DECLARE @tbl nvarchar (@fld nvarchar), @sql nvarchar (4000), @maxlen int, @sample nvarchar (40) SELECT d.name tablename,a.name fieldname,b.name typename,a.length length,a.isnullable into #t From Syscolumns A, systypes b,sysobjects D WHERE A.xtype=b.xusertype and A.id=d

SQL Server Temporary tables of are divided into local temporary tables and global temporary tables, which are described as follows in books online: There are two types of temporary tables: local and global, both of which ha

Server In the process of maintaining SQL Server databases, do you often encounter thousands of log20050901 such as the log table, each table is not a lot of data, one open look is very inconvenient, or sometimes we need to put the data in these tables, One open operation is also very troublesome. Here is a way to autom

Label:To delete a database, or to delete all tables in the database (delete table structure and data), you need to delete the foreign key constraint between the tables before you can delete the table. such as deleting all tables in the database Db_wy:--/1th Step ********** Delete all table foreign KEY constraints *************************/ DECLARE c1 cursor for

sys.objects WHERE type = ' P ') contains only user stored procedures, but execution sp_stored_procedures can query all kinds of stored procedures and all functions except system functions3.sys.modules ViewReturns a row for each system object that contains the SQL language definition module, with the associated SQL module for system objects of type FN, IF, P, PC, TF, and V.Therefore, for these types of obje

Tags: Combo key tar PNG create use share task today GESIn the process of using SQL Server, we may need to copy the table from one database to another, and today I'll show you how and how to do this. It may be a simple thing for most people, but it is better to record it than to write a good memory. Hope can help the students who need ... Copy table structure: First step: First, open and connect to

= "file size:" + (inputfile. postedfile. contentlength/1024). tostring () + "K byte (s )";}Else{Labelupresult. Text = "select the file you want to upload! ";Labelfilename. Text = "";Labelfileext. Text = "";Labelfilesize. Text = "";} } Private void button2_click (Object sender, system. eventargs E){Sqlconnection conn = new sqlconnection (configurationsettings. etettings ["DSN"]);// Connect to the Excel Data SourceString excelconnstring = @ "provider = Microsoft. Jet. oledb.4.0; Data Source =" +

The test is important. We can know which tables are affected by the current transaction-used to record when and what operations the user performs on the current table: update, insert, deletecreatetableTriggerRecord (operdtdatetime, -- trigger time opertpvarchar (10), -- operation type: update, insert, deleteope The test is important. We can know which tables are affected by the current transaction-used to r

) + 'id from # Tmp )'?????? Exec Sp_ExecuteSql @ Str, n'@ WokNo Varchar (500) output', @ WokNo OutPut?????? Select @ WokNo, @ I -- display the employee ID in one row?????? Set @ I = @ I + 1??? End TemporaryTableYesCreateLocal and globalTemporaryTable. LocalTemporaryThe table is only visible in the current session; GlobalTemporaryThe table is visible in all sessions.LocalTemporaryThe table name is preceded by a number character (# table_name), while the globalTemporaryThe table name is preceded b

In sqlserver, a simple combination of sp_spaceused and sp_msforeachtable stored procedures can easily calculate the size of the user data table, including the total number of records and space usage, which is very practical, both sqlserver2k and sqlserver2005 passed the test. /**/ /*1. Exec sp_spaceused 'table name' (SQL statistics, which may be inaccurate after a large number of transaction operations)2. Exec sp_spaceused 'table name', true (upd

Data dictionary is a good thing, for development, maintenance is very important.However, it is not convenient to write descriptive narration in SQL Server, how to simplify and add changes to the extended attributes in batches?It would be nice to add 2 tables and 5 stored procedures, 2 triggers, and a table-valued function.Run the following

You can obtain the desired data table information from the system table sysobjects in the database. The specific SQL statement is as follows: Select name from sysobjects where type = 'U '; Because the system table sysobjects stores all database objects, type indicates the types of various objects, including:U = User tableS = system tableC = check ConstraintsD = default value or default ConstraintF = forei

: increments of several numbers at a time wildcard characters:_: There is only one character% any of any charactersLike ' (used to modify)Having said so much, we should pay attention to some common problems;01. Foreign Key control is not good02. In SQL Server, string and date type data are enclosed in single quotes, and numeric types are not03. Each table must have a primary key, the table without the prima

informationCreate Table table (A1 varchar), A2 char (2))--Add descriptive information to the tableEXECUTE sp_addextendedproperty n ' ms_description ', ' personnel information table ', n ' user ', n ' dbo ', n ' table ', N ' table ', NULL, NULL--Add descriptive information for field A1EXECUTE sp_addextendedproperty n ' ms_description ', ' name ', n ' user ', n ' dbo ', n ' table ', n ' table ', n ' column ', n ' A1 '--Add descriptive information for fi

The basic syntax for most database statements is the same, but specific to each database, there are some differences, such as triggers, DB2 and SQL Server two are very different.For example, a trigger for DB2:CREATE TRIGGER eas.trname NO CASCADE before insert//INSERT trigger on EAS. T_user referencing new as N_row//Name the newly inserted data as N_row for

SQL Server table data Copy to Excel (method) 1, the new query, using SQL statements to read the table data 2, then, select data, right button, copy (also can be clicked along with the title copy) 3, paste in Excel can be. Second, Excel copy to SQL Server table data (meth

SQL Server 2008 synchronous replication creates new tables/functions/stored procedures (without reinitialization of snapshots)One, in the production environment already has the transaction replication (the replication type is the transactional publication), needs the existing published database to add the table, the view, the stored procedure and so on, these cha

Tag: SQL Server CTO self-increment title NotepadOne, 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 with the title copy), copied into Notepad (otherwis

(1) Cross join is what we call the Cartesian product. Query the number of records that satisfy both tables, A (3 Records), B (9 Records), A*b (27 records).For example: An employee table (hr.employees) and a freight company (sales.shippers) table make a cross-connection.1 SELECT * FROM hr.employees;2 select * from Sales.shippers;After the cross-connect, 27 records are found.1 Select A.empid,b.shipperid2 from hr.employees a cross join Sales.shippers