compare sql databases free

To compare two databases, you can use tools, such as toad, or write a stored procedure yourself. I will introduce an SQL statement to check whether the table structure is consistent, and so on, you can write an SQL statement that compares the consistency of indexes and the consistency of constraints. The disadvantage o

Know free Oracle/SQL Server databases Large databases such as Oracle and SQL server also have free versions, which can meet the needs of many small and medium projects. However, many project engineers do not know how to use open-

Comparison of data table structure"Principle" uses the system table "sysobjects", "sysindexes", "Sysindexkeys", "syscomments", "Sysclumns", "systypes", "extended_properties", Compare the table structure in the database. (more system tables are involved.) Don't introduce them. directly on the code. ）Code/*--Compare table structure differences for two databases--*/

Two databases compare and contrast view stored procedures and table structure differencesOne, view and stored procedure comparisonThe principle uses the system table "sysobjects" and the system table "syscomments" to compare views and stored procedures in the database. system table "sysobjects" has been described in detail before, it is interesting to see:

‘标识不同‘whena.主键 then‘主键设置不同‘whena.类型 then‘字段类型不同‘whena.占用字节数 then‘占用字节数‘whena.长度 then‘长度不同‘whena.小数位数 then‘小数位数不同‘whena.允许空 then‘是否允许空不同‘whena.默认值 then ‘默认值不同‘whena.字段说明 then‘字段说明不同‘else‘‘end, * from#tb1 a fulljoin#tb2 b on a.表名1=b.表名2 anda.字段名=b.字段名 wherea.表名1 isnullora.字段名 isnullorb.表名2 isnullor b.字段名 isnullora.标识 ora.主键 ora.类型 ora.占用字节数 ora.长度 ora.小数位数 ora.允许空 ora.默认值 ora.字段说明 orderbyisnull(a.表名1,b.表名2),isnull(a.序号,b.序号)--isnull(a.字段名,b.字段名) go "Execution Results"PS: Please use the sy

Two databases compare view stored procedures and table structure differences Comparison of views and stored procedures The principle uses the system table "sysobjects" and the system table "syscomments" to compare views and stored procedures in the database. system table "sysobjects" before a detailed introduction, interested to see:

tutorial Availability tests and research show that maintaining Database Consistency and data controllability is a headache. Why not trySQL data compare (SQL data comparison tool)To relieve headaches? This tool was developed by red gate. We are familiar with. Net reflector, which is launched by this company. Its sqltoolbet is also very famous, and SQL data

. Tutorial SQL compare is a tool commonly used by programmers to compare the differences between two databases. Can be used to compare objects in a database. For example, stored procedures, database data, and table structure. Next I will briefly introduce how to use 1. Se

commonly used by programmers to compare the differences between two databases. Can be used to compare objects inside the database. such as stored procedures, data in the database, the structure of the table. Let me briefly explain how to use1, select the database to compare, point "

Tags: ges open the menu bar using the Install package product hive text hintFirst, the use of the tutorialSQL Compare is a tool commonly used by programmers to compare the differences between two databases. Can be used to compare objects inside the database. such as stored procedures, data in the database, the structur

Solve the Problem of CPU resource depletion caused by a large number of latch free databases in production. latchfree At noon, the cpu of a database we produced remained high. Using the following SQL statement, we can view the database waiting and contention at that time: select s.SID, s.SERIAL#, 'kill -9 ' || p.SPID, s.MACHINE, s.OSUSER,

One of the Red Gate series SQL Compare 10.4.8.87 Edition Database comparison tool complete hack + tutorialRed Gate Series two SQL Source control 3.0.13.4214 Edition Database version controller complete hack + use tutorialRed Gate Series Three SQL Server development tool SQL

Sybase in the United States provides the company's Enterprise database software for free for Linux "Adaptive Server Enterprise (ASE) Express Edition for Linux ". This is what Sybase revealed on August 1, September 8. "Small-scale enterprises and developers can develop, test, and import new application software without having to pay the license fee, and enjoy products with high performance ." (The Company) According to TechWeb, an American media rep

publishing side with the verification subscription function at the publisherMethod Seven: Compare the checksum values of the contents of two tables with checksum checkBut this approach is only confined to the two-table structure.I copy the data from the [t1_new] table to a new table for comparisonSELECT * from [dbo].[t1_new]SELECT * from [dbo].[T1_newreplica]SELECT SUM(CHECKSUM (*)) asChecksumvalue from [dbo].[T1_old]SELECT SUM(CHECKSUM (*)) asChec

July, an elephant for the people introduced the Chinese version of Windows Azure How to build a station, custom remote virtual machine, up to four cores, 28G of memory server, I believe a lot of webmaster, developer users are very enjoyable. However, the azure built-in system supports only SQL databases and does not support the familiar MySQL platform.How to build PHP website, daily WordPress blog, phpwind/

function at the publisherMethod Seven: Compare the checksum values of the contents of two tables with checksum checkBut this approach is only confined to the two-table structure.I copy the data from the [t1_new] table to a new table for comparisonSELECT * from [dbo].[t1_new]SELECT * from [dbo].[T1_newreplica]SELECT SUM(CHECKSUM (*)) asChecksumvalue from [dbo].[T1_old]SELECT SUM(CHECKSUM (*)) asChecksumvalue from [dbo].[t1_new]SELECT SUM(CHECKSUM (*

Tags: remote boolean image fetching data numeric string command column system1. OverviewADO provides a wealth of database operations that can be divided into three steps: First, connect the database with the SqlConnection object; Second, establish the SqlCommand object, which is responsible for the execution of SQL statements and the invocation of stored procedures; Third, operate on the results returned after

the operating system.5. The various Oracle-related processes are not loaded after restarting the operating system.Remove the Oracle installation directory, where the benefits of creating a separate directory are shown here. You can simply delete the custom Oracle folder directly. (Database things seem to be very slow to delete).If you do not follow the customization, find the default installation directory and delete it.6. Delete the Oracle item from the Start menu.At this point, Oracle is comp

@t1_newcount=COUNT (*)FromT1_new;SELECT@count=COUNT (*)From[T1_old]AsAINNERJOIN[T1_new]As BOn[B].[Id]=[A].[Id]and[B].[Log_time]=[A].[Log_time]-- If there are other fields in the table that you add yourself print print @t1_newcount if ( @count = @t1_newcount ) begin ' equal "end else begin select Span style= "color: #ff0000;" > ' Method five: With SQL Server's own Tablediff tool, Microsoft made this tool to comp