sql server compare two tables for differences

SELECT ' EXEC sys.sp_addextendedproperty @name =n ' | | Chr (39) | | Ms_description ' | | Chr | | ', @value =n ' | | Chr (39) | | comments| | Chr | | ', @level0type =n ' | | Chr (39) | | SCHEMA ' | | Chr | | ', @level0name =n ' | | Chr (39) | | dbo ' | | Chr | | ', @level1type =n ' | | Chr (39) | | TABLE ' | | Chr | | ', @level1name =n ' | | Chr (39) | | table_name| | Chr | | ', @level2type =n ' | | Chr (39) | | COLUMN ' | | Chr | | ', @level2name =n ' | | Chr (39) | | Valid_date ' | | Chr (39)F

.[value], ") as [description]From Syscolumns ALeft join Systypes B on A.xtype=b.xusertypeINNER JOIN sysobjects D on a.id=d.id and d.xtype= ' U ' and d.nameLeft join syscomments E on a.cdefault=e.idLeft joins Sys.extended_properties G on a.id=g.major_id and a.colid=g.minor_idLeft join Sys.extended_properties F on D.id=f.class and f.minor_id=0Where b.name is not null--where d.name= ' table to query '--if you only query the specified table, add this conditionORDER BY A.id,a.colorderHow

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 possible from the MDF file itself.The first thing to do when you delete data by mistake is to detach the database, stop the database service, and then copy the MDF and LDF.Recover data from MDF files applied to the customer database a few years ago, but

allowed per column.3, check the constraintsThe check constraint sets the check condition for values in the input column or the entire table, and can limit the input values to ensure the integrity of the database. The check constraint determines the valid value through the logical expression of the data. For example, to define an age ages field, you can limit the range of values inside the age field to between 0 and 150 by creating a check constraint (>=0 and age Only one check constraint

1. Query all database names in the database:SELECT Name from Master. sysdatabases ORDER by Name2. Query all the table names in a database:SELECT name from SysObjects Where xtype= ' U ' ORDER by Name3. Query table structure information: 1 SELECT (case if A.colorder=1 then d.name else null end) Table name, 2 a.colorder field ordinal, a.name field name, 3 TY (a.id,a.name, ' isidentity ') =1 then ' √ ' else ' end) identifier, 4 (SELECT count (*) from sysobjects 5 WHERE (name in (select name from sy

Label:This article from: http://www.cnblogs.com/yjss/articles/2065664.html 1. Delete a table Use database name declare mycur cursor local for SELECT [name] from dbo.sysobjects where xtype= ' U ' declare @name varchar (10 0) OPEN mycur FETCH NEXT from Mycur to @name while @ @FETCH_STATUS = 0 BEGIN exec (' drop table ' + @na Me) FETCH NEXT from mycur to @name END CLOSE mycur 2. Delete a view Use database name declare mycur cursor local for SELECT [name] from dbo.sysobjects where xtype=

Label: 1. Query all database names in the database: SELECT Name from Master. sysdatabases ORDER by Name 2. Query all the table names in a database: SELECT name from SysObjects Where xtype= ' U ' ORDER by Name 3. Query table structure information: 1 SELECT (case if A.colorder=1 then d.name else null end) Table name, 2 a.colorder field ordinal, a.name field name, 3 Erty (a.id,a.name, ' isidentity ') =1 then ' √ ' else ' end) identifier, 4 (SELECT count (*) from sysobjects 5 WHERE (nam E in (the

Q: Please expert advice! The problem is this: I have 1000 data tables, each with the same structure (each table has "QQ,TJ,YJ,EJ,SJ,SIJ,WJ,LJ,ZS,ZJL" 10 fields), but the table name is different. There is also a "Data Update table JJ (TABLE_INDEX,QQ,TJ,YJ,EJ,SJ,SIJ,WJ,LJ,ZS,ZJL)", in addition to the Table_index field, also has "Qq,tj,yj,ej,sj,sij,wj,lj,zs, Zjl "10 fields, 1000 rows, the purpose of which is to update (insert) The preceding 1000 data

SQL 2005 how to modify the architecture of tables and stored procedures in batches* ** First, you need to add a new architecture owner to the architecture item in the security selection of the database to be modified.1. Let's talk about it first.How to modify the architecture of stored procedures in batches in SQL 2005.Run the following

. Partial SQL Statement Differences(1) Sql:select top * FROM tableOra:select * FROM table where rownum(2) Sql:select * from T1 join T2 on T1.C1=T2.C1Ora:select * from T1,t2 where t1.c1=t2.c1(3) SELECT * from T1 LEFT join T2 on T1.C1=T2.C1Ora:select * from T1,t2 where T1.C1=T2.C1 (+)(4) Sql:select * from T1 right join T2 on T1.C1=T2.C1Ora:select * from T1,t2 where T1.C1 (+) =T2.C12. Other technical differenc

For people who are new to the SQL database, there are a few questions about the SQL version of the problem, but they are too lazy to study it carefully. Although the problem is simple, but the impact is not small. Version differences SQL Server 2000 has four versions: Ente

, such as the table TB Name field value: John, Dick, Harry, Zhao Liu And we want to query the name= John, this must be judged when the table's name field contains the query criteria, that is, "John", that is, the query Workaround: 1, the first thought of course is like query (not the ultimate solution, the ultimate way to continue to look down) such as sql= "select * Form TB where tb.name like '%" John "%" To explain this statement, you can que

SQL Server table and Excel data bulk copy method (resolved) 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 Exc

free, and cross-platform, on the contrary, how much would it cost to use Asp+mssql? The paging difference is different when the SQL statement gets the total number of records.Select COUNT (*) from Guestbook; MssqlSelect name from note; Mysql MySQL is an open source database, smaller, but functional and fast. Much better than access. SQL Server,mssql is also i

Situation: The remote database delete table execution is too slow, too many tables, the database does not have permission to deleteResult: Empty database is reservedMethods: Using SQL statements, query the Network Digest solution.DescriptionSome are constrained and cannot be deleted directly, you need to delete all the constraints first, the statement:DECLARE C1 Cursor for Select 'ALTER TABLE ['+ object_

Sorting hundreds of billions of tables or a join between billions of tables can cause the system to lose its response. 1. I did make a large query that involved a data table with 200 million records, and a group by operation, resulting in large CPU, memory, and disk overhead. Later, with Microsoft's people to experiment again, my query does cause the system to slow down the response. We also experimented w

Just spit it out, because the company is going to deploy a whole new system for new customers, but the company doesn't have an empty library, so it can only back up the databases that are running on the wire, and then empty the data.Here's a look at what I wrote when I emptied the database. A method of bulk emptying a data tableIdea: Query out all the tables under the library filter out the tables that need

@pageSize = _pagesize; Prepare pagesql from "SELECT Sql_calc_found_rows * from Product where categoryId =?" ORDER BY ProductId Desc Lim It?,? '; Execute pagesql using @categoryId, @startRow, @pageSize; deallocate prepare pagesql; Set _totalreccount = Found_rows (); End There are too many differences between MySQL and SQL Server, j

defined, the data that satisfies these criteria can be inserted into the database. For example, asked to register the gender of the membership is either male, or female, never allow the third situation, such as age can only be 18~80岁, other registration is not.VII, FOREIGN key relationship. Setting foreign keys saves space, facilitates programming, and expands programs.Consider whether to use an index. An index is also a database object, which uses indexes on which columns, does not apply index

DBO is not the owner of the table casetable, so it cannot execute various SQL statements in the query analyzer. The prompt is:Server: Message 208, level 16, status 1, Row 1The object name 'casetable' is invalid. Generally, the default owner of a table is DBO. Currently, several tables are not, so they cannot be connected using SA. How can I change it back to DBO? Exec sp_changeobjectowner 'casetable', 'db