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sql - What are DDL and DML? - Stack Overflow I have heard the terms DDL and DML in reference to databases, but I don't understand what they are What are they and how do they relate to SQL?
O que são as siglas DDL, DML, DQL, DTL e DCL? DML - Data Manipulation Language - Linguagem de Manipulação de Dados São os comandos que interagem com os dados dentro das tabelas São comandos DML : INSERT, DELETE e UPDATE DQL - Data Query Language - Linguagem de Consulta de dados São os comandos de consulta São comandos DQL : SELECT (é o comando de consulta) Aqui cabe um parenteses
Cannot use UPDATE with OUTPUT clause when a trigger is on the table UPDATE BatchReports SET IsProcessed = 1 OUTPUT inserted LastModifiedDate, inserted RowVersion, inserted BatchReportID WHERE BatchReports BatchReportGUID = @someGuid That then hits the well-know limitation ("won't-fix" bug) in SQL Server: The target table 'BatchReports' of the DML statement cannot have any enabled triggers if the statement contains an OUTPUT clause without INTO clause
Unable to run INSERT INTO from Azure SQL external table In my Azure SQL DB I have an external table - let's call this tableName_origData - and I have another table which we'll refer to as tableName tableName was created using a generated CREATE script
about Oracle parallel insert performance - Stack Overflow If your DML runs in parallel, it will automatically use direct-path inserts However, if your statement gets downgraded to serial, for example if there are no parallel servers available, then the append hint can make a big difference (This suggestion to use the append hint assumes you only care about maximum performance
How to find whether the SQL query type is DML or DDL? If you wish to detect these statements, you can either prepare (and describe) the statement and look at the returned information to diagnose whether it is one of the DML statements listed above, or you can scan for these keywords as the first non-comment words in the statement This covers the vast majority of practical cases