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The SELECT clause displays the table before the updates. The FROM clause specifies EMPLOYEES as the table to select from. The UPDATE statement updates the values in EMPLOYEES.The SET clause specifies that the data in the Salary column be multiplied by 1.04 when the job code ends with a 1 and 1.025 for all other job codes.
Execute the following Microsoft SQL Server T-SQL datetime and date formatting scripts in Management Studio Query Editor to demonstrate the multitude of temporal data formats available in SQL Server.We incorporated the SQL variable '@i' (inside of a sql:variable() extension function), which was used to iterate the Employee nodes.Notice that the salary amount for employee # 4 was not updated, since that employee is in the Accounting department.For example, an operation that tries to update the salary amount of two different employees in the following manner will fail: UPDATE HR_XML SET Salaries.modify('replace value of (/Salaries/Marketing/Employee[@ID=("2")]/Salary/text()) with ("60000")'), Salaries.modify('replace value of (/Salaries/Marketing/Employee[@ID=("1")]/Salary/text()) with ("60000")') GO Instead, multiple updates to the same XML value must be accomplished using entirely separate UPDATE statements. We need to update the salary amount to match that of employee #2 (60600): Notice that we had to perform two separate modify() operations in order to update the salary and tier data.We've looked at examples of the XML DML extension, using the modify() XQuery method.