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9 best practices for faster SQL queries Retrieve only the columns you need Use CASE instead of UPDATE for conditional column updates Keep large-table queries to a minimum Pre-stage your data ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement.

Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed. Disconnect all previous connections to the server or shared resource and try ...

Include your code Beginning with EF Core 7.0 rc2 when a database entity is generated through a projection and then saved as a new entity, EF Core will throw exception due to "temporary value" of Id ...

With the latest public preview available, it's time to see if you want to upgrade to the most cloud-connected version of SQL Server so far.

Part of the SQL Server 2022 blog series. The main difference between tempdb and other databases is the workload. With tempdb we are constantly creating and destroying objects such as temp tables. This ...

Sharding-JDBC 4.1.0：ShardingSphereException: Cannot support Multiple-Table for org.apache.shardingsphere.sql.parser.sql.statement.dml.DeleteStatement #10843 ...