ObjectExplorer.png?resize=755%2C248' alt='Microsoft Sql Ce 3 5 Sp 2000' title='Microsoft Sql Ce 3 5 Sp 2000' />ALTER DATABASE Compatibility Level Transact SQLTHIS TOPIC APPLIES TO SQL Server starting with 2. Azure SQL Database. Azure SQL Data Warehouse Parallel Data Warehouse Sets certain database behaviors to be compatible with the specified version of SQL Server. Popis verz Microsoft SQL Serveru Microsoft SQL Server 2000. Microsoft SQL Server 2000 je vysoce vkonn relan databzov systm zaloen na architektue. For other ALTER DATABASE options, see ALTER DATABASE Transact SQL. Transact SQL Syntax Conventions. Syntax. ALTER DATABASE databasename. Microsoft Sql Ce 3 5 Sp 2000' title='Microsoft Sql Ce 3 5 Sp 2000' />SET COMPATIBILITYLEVEL 1. Argumentsdatabasename. Is the name of the database to be modified. COMPATIBILITYLEVEL 1. Is the version of SQL Server with which the database is to be made compatible. The following compatibility level values can be configured Product. Database Engine Version. Compatibility Level Designation. Get fast, free assistance preview our new Virtual Agent today. Ask the Virtual Agent. Supported Compatibility Level Values. SQL Server 2. 01. Azure SQL Database. SQL Server 2. 01. SQL Server 2. 01. SQL Server 2. 01. SQL Server 2. 00. R2. 10. 5. 10. 01. SQL Server 2. 00. SQL Server 2. 00. SQL Server 2. 00. Note. Azure SQL Database V1. December 2. 01. 4. One aspect of that release was that newly created databases had their compatibility level set to 1. In 2. 01. 5 SQL Database began support for level 1. Starting in mid June 2. Azure SQL Database, the default compatibility level are 1. Existing databases created before mid June 2. If you want level 1. ALTER DATABASE SCOPED CONFIGURATION Transact SQL, and in particular its keyword LEGACYCARDINALITYESTIMATION ON. For details about how to assess the performance differences of your most important queries, between two compatibility levels on Azure SQL Database, see Improved Query Performance with Compatibility Level 1. Azure SQL Database. Execute the following query to determine the version of the Database Engine that you are connected to. SELECT SERVERPROPERTYProduct. Version. Note Not all features that vary by compatibility level are supported on SQL Database. To determine the current compatibility level, query the compatibilitylevel column of sys. Transact SQL. SELECT name, compatibilitylevel FROM sys. For all installations of SQL Server, the default compatibility level is set to the version of the Database Engine. Databases are set to this level unless the model database has a lower compatibility level. When a database is upgraded from any earlier version of SQL Server, the database retains its existing compatibility level if it is at least minimum allowed for that instance of SQL Server. Upgrading a database with a compatibility level lower than the allowed level, sets the database to the lowest compatibility level allowed. This applies to both system and user databases. Use ALTER DATABASE to change the compatibility level of the database. To view the current compatibility level of a database, query the compatibilitylevel column in the sys. Using Compatibility Level for Backward Compatibility Compatibility level affects behaviors only for the specified database, not for the entire server. Compatibility level provides only partial backward compatibility with earlier versions of SQL Server. Starting with compatibility mode 1. This has been done in order to minimize the risk during upgrades that arise from performance degradation due to query plan changes. From an application perspective, the goal is still to be at the latest compatibility level in order to inherit some of the new features as well as performance improvements done in the Query optimizer space but to do so in a controlled way. Use compatibility level as an interim migration aid to work around version differences in the behaviors that are controlled by the relevant compatibility level setting. For more details see the Upgrade best practices later in the article. If existing SQL Server applications are affected by behavioral differences in your version of SQL Server, convert the application to work seamlessly with the new compatibility mode. Then use ALTER DATABASE to change the compatibility level to 1. The new compatibility setting for a database takes effect when a USE Database is issued or a new login is processed with that database as the default database. Best Practices Changing the compatibility level while users are connected to the database can produce incorrect result sets for active queries. For example, if the compatibility level changes while a query plan is being compiled, the compiled plan might be based on both the old and new compatibility levels, resulting in an incorrect plan and potentially inaccurate results. Furthermore, the problem may be compounded if the plan is placed in the plan cache and reused for subsequent queries. To avoid inaccurate query results, we recommend the following procedure to change the compatibility level of a database Set the database to single user access mode by using ALTER DATABASE SET SINGLEUSER. Change the compatibility level of the database. Put the database in multiuser access mode by using ALTER DATABASE SET MULTIUSER. For more information about setting the access mode of a database, see ALTER DATABASE Transact SQL. Compatibility Levels and Stored Procedures When a stored procedure executes, it uses the current compatibility level of the database in which it is defined. When the compatibility setting of a database is changed, all of its stored procedures are automatically recompiled accordingly. Differences Between Compatibility Level 1. Level 1. 40. This section describes new behaviors introduced with compatibility level 1. Compatibility level setting of 1. Compatibility level setting of 1. Cardinality estimates for statements referencing multi statement table valued functions use a fixed row guess. Cardinality estimates for eligible statements referencing multi statement table valued functions will use the actual cardinality of the function output. This is enabled via interleaved execution for multi statement table valued functions. Batch mode queries that request insufficient memory grant sizes that result in spills to disk may continue to have issues on consecutive executions. Batch mode queries that request insufficient memory grant sizes that result in spills to disk may have improved performance on consecutive executions. This is enabled via batch mode memory grant feedback which will update the memory grant size of a cached plan if spills have occurred for batch mode operators. Batch mode queries that request an excessive memory grant size that results in concurrency issues may continue to have issues on consecutive executions. Batch mode queries that request an excessive memory grant size that results in concurrency issues may have improved concurrency on consecutive executions. This is enabled via batch mode memory grant feedback which will update the memory grant size of a cached plan if an excessive amount was originally requested. Batch mode queries that contain join operators are eligible for three physical join algorithms, including nested loop, hash join and merge join. If cardinality estimates are incorrect for join inputs, an inappropriate join algorithm may be selected. If this occurs, performance will suffer and the inappropriate join algorithm will remain in use until the cached plan is recompiled. There is an additional join operator called adaptive join. If cardinality estimates are incorrect for the outer build join input, an inappropriate join algorithm may be selected. If this occurs and the statement is eligible for an adaptive join, a nested loop will be used for smaller join inputs and a hash join will be used for larger join inputs dynamically without requiring recompilation. Mises jour dExchange Server  numros de version et dates de sortie Exchange 2. Help Sapplique   Exchange Server 2. Exchange Server 2. Exchange Server 2. Exchange Server 2. Dernire rubrique modifie  2. Rsum  Cet article vous fournit de manire centralise les tlchargements de mises jour, les numros de build et les dates de sortie des versions de Microsoft Exchange. Vous pouvez utiliser les informations de cette rubrique pour vrifier la version dExchange excute dans votre organisation. Cette rubrique est organise en sections qui correspondent aux principales versions dExchange. Chaque section rpertorie les numros de version pour chaque Service Pack SP, mise jour cumulative CU ou correctif cumulatif RU de la version dExchange spcifique. Les liens de tlchargement pour les mises jour cumulatives, correctifs cumulatifs et Service Packs les plus rcents pour Exchange 2. Exchange 2. 01. 3, Exchange 2. Exchange 2. 00. 7 sont inclus. Cette section indique les numros de build et les dates de sortie gnrale de chaque version de Microsoft Exchange Server 2. Pour afficher le numro de build de la version dExchange 2. Exchange Management Shell. Get Exchange. Server Format List Name, Edition, Admin. Display. Version. Le tableau suivant indique les numros de build et les dates de disponibilit gnrale de chaque version dExchange 2. Nom du produit. Date de sortie. Numro de build. Exchange Server 2. CU6. 27 juin 2. 01. Exchange Server 2. CU5. 21 mars 2. 01. Exchange Server 2. CU4. 13 dcembre 2. Exchange Server 2. CU3. 20 septembre 2. Exchange Server 2. CU2. 21 juin 2. 01. Exchange Server 2. CU1. 15 mars 2. 01. Exchange Server 2. RTM1er octobre 2. Aperu dExchange Server 2. Cette section indique les numros de version et les dates de sortie gnrale de chaque version de Microsoft Exchange Server 2. Pour afficher le numro de build de la version dExchange 2. Exchange Management Shell. Get Exchange. Server Format List Name, Edition, Admin. Display. Version. Le tableau suivant indique les numros de build et les dates de disponibilit gnrale de chaque version dExchange 2. Nom du produit. Date de sortie. Numro de build. Exchange Server 2. CU1. 72. 7 juin 2. Exchange Server 2. CU1. 62. 1 mars 2. Exchange Server 2. CU1. 51. 3 dcembre 2. Exchange Server 2. CU1. 42. 0 septembre 2. Exchange Server 2. CU1. 32. 1 juin 2. Exchange Server 2. CU1. 21. 5 mars 2. Exchange Server 2. CU1. 11. 5 dcembre 2. Exchange Server 2. CU1. 01. 5 septembre 2. Exchange Server 2. CU9. 17 juin 2. 01. Exchange Server 2. CU8. 17 mars 2. 01. Exchange Server 2. CU7. 9 dcembre 2. Exchange Server 2. CU6. 26 aot 2. 01. Exchange Server 2. CU5. 27 mai 2. 01. Exchange Server 2. SP1. 25 fvrier 2. Exchange Server 2. CU3. 25 novembre 2. Exchange Server 2. CU2. 9 juillet 2. Exchange Server 2. CU1. 2 avril 2. 01. Version finalise RTM dExchange Server 2. Cette section indique les numros de build et les dates de sortie gnrale de chaque version de Microsoft Exchange Server 2. Pour afficher le numro de build de la version dExchange 2. Exchange Management Shell . Get Command Ex. Setup For. Each. File. Version. Info. Numros de build dExchange Server 2. SP3. Nom du produit. Date de sortie. Numro de build. Correctif cumulatif 1. Exchange Server 2. SP3. 21 mars 2. 01. Correctif cumulatif 1. Exchange Server 2. SP3. 13 dcembre 2. Correctif cumulatif 1. Exchange Server 2. SP3. 20 septembre 2. Correctif cumulatif 1. Exchange Server 2. SP3. 21 juin 2. 01. Correctif cumulatif 1. Exchange Server 2. SP3. 15 mars 2. 01. Correctif cumulatif 1. Exchange Server 2. SP3. 15 dcembre 2. Correctif cumulatif 1. Exchange Server 2. SP3. 15 septembre 2. Correctif cumulatif 1. Exchange Server 2. SP3. 17 juin 2. 01. Correctif cumulatif 9 pour Exchange Server 2. SP3. 17 mars 2. 01. Correctif cumulatif 8 v. Exchange Server 2. SP3vendredi 1. 2 dcembre 2. Correctif cumulatif 8 v. Exchange Server 2. Service Pack 3 rappel9 dcembre 2. Correctif cumulatif 7 pour Exchange Server 2. SP3. 26 aot 2. 01. Correctif cumulatif 6 pour Exchange Server 2. SP3. 27 mai 2. 01. Correctif cumulatif 5 pour Exchange Server 2. SP3lundi 2. 4 fvrier 2. Correctif cumulatif 4 pour Exchange Server 2. SP3lundi 9 dcembre 2. Correctif cumulatif 3 pour Exchange Server 2. SP3lundi 2. 5 novembre 2. Correctif cumulatif 2 pour Exchange Server 2. SP3jeudi 8 aot 2. Correctif cumulatif 1 pour Exchange Server 2. SP3mercredi 2. 9 mai 2. Exchange Server 2. SP3mardi 1. 2 fvrier 2. Numros de build dExchange Server 2. SP2. Nom du produit. Date de sortie. Numro de build. Correctif cumulatif 8 pour Exchange Server 2. SP2lundi 9 dcembre 2. Correctif cumulatif 7 pour Exchange Server 2. SP2samedi 3 aot 2. Correctif cumulatif 6 pour Exchange Server 2. SP2mardi 1. 2 fvrier 2. Correctif cumulatif 5 v. Exchange Server 2. SP2lundi 1. 0 dcembre 2. Correctif cumulatif 5 pour Exchange Server 2. SP2. 13 novembre 2. Correctif cumulatif 4 v. Exchange Server 2. SP2. 9 octobre 2. Correctif cumulatif 4 pour Exchange Server 2. SP2lundi 1. 3 aot 2. Correctif cumulatif 3 pour Exchange Server 2. SP2. 29 mai 2. 01. Correctif cumulatif 2 pour Exchange Server 2. SP2lundi 1. 6 avril 2. Correctif cumulatif 1 pour Exchange Server 2. SP2lundi 1. 3 fvrier 2. Exchange Server 2. SP2dimanche 4 dcembre 2. Numros de build dExchange Server 2. SP1. Nom du produit. Date de sortie. Numro de build. Correctif cumulatif 8 pour Exchange Server 2. SP1lundi 1. 0 dcembre 2. Correctif cumulatif 7 v. Exchange Server 2. SP1mardi 1. 3 novembre 2. Correctif cumulatif 7 v. Exchange Server 2. File And Printer Sharing For Microsoft Networks Missing here. SP1mercredi 1. 0 octobre 2. Correctif cumulatif 7 pour Exchange Server 2. SP1mercredi 8 aot 2. Correctif cumulatif 6 pour Exchange Server 2. SP1jeudi 2. 7 octobre 2. Correctif cumulatif 5 pour Exchange Server 2. SP1. 23 aot 2. 01. Correctif cumulatif 4 pour Exchange Server 2. SP1mercredi 2. 7 juillet 2. Correctif cumulatif 3 pour Exchange Server 2. SP1mercredi 6 avril 2. Correctif cumulatif 2 pour Exchange Server 2. SP1jeudi 9 dcembre 2. Correctif cumulatif 1 pour Exchange Server 2. SP1lundi 4 octobre 2. Exchange Server 2. SP1lundi 2. 3 aot 2. Numros de build dExchange Server 2. RTM. Nom du produit. Date de sortie. Numro de build. Correctif cumulatif 5 pour Exchange Server 2. Correctif cumulatif 4 pour Exchange Server 2. Correctif cumulatif 3 pour Exchange Server 2. Correctif cumulatif 2 pour Exchange Server 2. Correctif cumulatif 1 pour Exchange Server 2. Exchange Server 2. Le tableau suivant rpertorie les numros de build et les dates de sortie gnrale de chaque version de Microsoft Exchange Server 2. Les informations de version pour Exchange Server 2. SP1 sont correctement affiches dans la console de gestion Exchange, lenvironnement de ligne de commande Exchange Management Shell et la bote de dialogue daide propos dExchange Server 2. Toutefois, aprs le dploiement dExchange 2. SP1 sur un serveur de transport Edge excutant la version RTM dExchange 2. Edge ne sont pas mises jour dans la console de gestion Exchange, sauf si le serveur de transport Edge est rabonn au site Active Directory. En effet, le serveur de transport Edge ne met pas jour directement Active Directory avec des informations de configuration. Au lieu de cela, les informations de version des serveurs de transport Edge sont enregistres dans Active Directory lors de la cration de labonnement Edge. Pour afficher le numro de build de la version dExchange 2. Exchange Management Shell . Get Command Ex. Setup For. Each. File. Version. Info. Numros de build dExchange Server 2. SP3. Nom du produit. Date de sortie. Numro de build.