One of the most critical subsystems within the Database Engine is the Relational Engine, which is responsible for processing query requests from users or applications. It analyzes the query statements and gener
“SQL is designed based on relational algebra and tuple relational calculus, SQL consists of many types of statements, which may be informally classed as sublanguages, commonly: a data query language (DQL),[a] a data definition language (DDL),[b] a data control language (DCL), and a data...
This is the second post in a series discussing changes between SSMS 18.12.1 and SSMS 19, and new functionality in SSMS 19.1. You can view the first post covering Microsoft.Data.Sqlclient and MSAL he... is 15.0.18424.0, and the product version on ssms.e...
While such scenarios still execute, it often results in sub-optimal query plan choices that negatively impact performance. SQL Server 2012 SP1 modifies the permission restrictions and allows users with SELECT permission to use this command. Note that the following requirements exist for SELECT ...
Setup Why we have different plans for the same T-SQL query? How plan regression happens?Plan regression happens when SQL Server starts using the sub-optimal SQL plan to execute some T-SQL query. Usually you will see that some T-SQL query is executing really fast, but then it gets slowe...
In NDB 8.0, this restriction is removed such that column values from tables earlier in the query plan can also be referred to from pushed conditions. NDB 8.0 supports joins comparing column expressions, as well as comparisons between columns in the same table. Columns and column expressions to ...
IsDefault (Windows) RtlNtStatusToDosErrorNoTeb function (Preliminary) AdminEnable (Windows) IPType (Windows) Using SQL and AQS Approaches to Query the Index (Windows) SUBQUERY Argument (Windows) Intsafe.h Functions (Windows) Mandatory User Profiles (Windows) Execute In Explorer Sample (Windows) Kno...
SQL Assessments in Azure Migrate now supports theAs on-premisessizing criteria. This is useful in situations where capturing a full performance profile is difficult due to transient nature of the workload (such as month-end or year-end processing) or access/permission issues. ...
Analysis Query All replication subsystems Transact-SQL subsystems will execute under the owner just as they did in SQL Server 2000. To grant users other than sysadmins the right to create a job step for types other than Transact-SQL, a sysadmin must create at least one proxy accoun...
Version 2.2.8 of the Watson Query service includes various fixes. For details, see What's new and changed in Watson Query. Related documentation: Watson Query Watson Speech services 4.8.8 Version 4.8.8 of the Watson Speech to Text service includes various fixes. For details, see What's ...