UPDATE SELECT SQL: Usage Guide

In SQL, the UPDATE SELECT statement is used to update data in a table by specifying the rows to be updated using a SELECT statement.

The basic syntax is as follows:

UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition

The table_name specifies the name of the table to be updated, followed by column1 = value1, column2 = value2, and so on, which specifies the columns to be updated along with their new values. The WHERE condition is optional and is used to specify the rows to be updated.

Original: 我们需要更多的时间来完成这个项目。

Paraphrased: We require additional time to complete this project.

Assuming there is a table called employees, with columns: id, name, salary. We want to increase the salary of employees making less than 5000 by 10%.

UPDATE employees
SET salary = salary * 1.1
WHERE salary < 5000

This will update the salaries of all employees in the employees table who earn less than 5000, increasing them by 10%.

Caution should be taken when using the UPDATE SELECT statement to ensure that the WHERE condition is used carefully, updating only the rows that meet the criteria.

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