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Posted byAndrew
删除vs Drop Both Delete and Drop commands belong to SQL (Structured Query Language) statements, and they are used in case of removing data from a database. Delete is a DML (Data Manipulation Language) command. It deletes some or all the data from a table according to the condition that the user has specified. Delete […]
Posted byAndrew
下降和截断Drop and Truncate are two SQL (Structured Query Language) statements that are used in Database Management Systems, where we wish to remove data records from a database. Both Drop and Truncate statements remove the entire data in a table and the related SQL statement. Delete operation is not effective in this case […]