1. Not knowing in what order queries execute SQL has a low barrier to entry. You start writing queries — use a JOIN here and there, do some grouping and you’re already an expert (at least some people think so). But does the so-called expert even know in what order do SQL queries...
When you use aggregate functions, you usually must also create a GROUP BY clause. A GROUP BY clause lists all the fields to which you do not apply an aggregate function. If you apply aggregate functions to all the fields in a query, you do not have to create the GROUP BY ...
What backup and recovery changes do you require? What downtime is required during the migration? Have you met the performance requirements? Are you changing the operational time window? What effect does the downtime have on the business?
'Sort' in exuction plan is showing more than 90 % cost, what to do? 'TRY_CONVERT' is not a recognized built-in function name 'VARCHAR' is not a recognized built-in function name. 'WHEN MATCHED' cannot appear more than once in a 'UPDATE' clause of a MERGE statement. "EXECUTE AT"...
Which versions of SQL Server and Java do the driver support? See the Microsoft JDBC Driver for SQL Server support matrix page for details. What is the difference between the JDBC driver packages available on the Microsoft download page and the JDBC driver available on GitHub? The JDBC driver ...
(If you do not want to use any old information or settings, you can skip creating a backup copy.) Delete the original (not the backup) folder or directory where your user information is stored (explained in step 2). Start SQL Developer. This creates a folder or directory where your user...
SQL20039NThe definition of indexindex-namedoes not match the definition of index extensionindex-ext-name. Explanation The index definition and the index extension definition do not match. The following lists the possibilities for where the definitions do not match. ...
Your skills and experience transfer to the cloud, so you can do even more with what you already have.The three products in the Azure SQL family are:Azure SQL Database: Support modern cloud applications on an intelligent, managed database service that includes serverless compute. Azure SQL ...
The section does not contain access plan information. Some sections for statements such as DDL do not contain an access plan. The explain facility cannot be used on these sections. 6 The section does not exist because the statement is invalid. The statement was in error when the package was...
[Send Mail Task] Error: Either the file "///ServerName//Transfer//Reporting//Completed" does not exist or you do not have permissions to access the file. [Solved] Refresh excel sheets inside SSIS [SQL Server Destination [100]] Error: Unable to bulk copy data. You may need to run this...