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  • 44、将id=5以及emp_no=10001的行数据替换成id=5以及emp_no=10005

    1、题目描述

    将id=5以及emp_no=10001的行数据替换成id=5以及emp_no=10005,其他数据保持不变,使用replace实现。
    CREATE TABLE IF NOT EXISTS titles_test (
    id int(11) not null primary key,
    emp_no int(11) NOT NULL,
    title varchar(50) NOT NULL,
    from_date date NOT NULL,
    to_date date DEFAULT NULL);

    insert into titles_test values ('1', '10001', 'Senior Engineer', '1986-06-26', '9999-01-01'),
    ('2', '10002', 'Staff', '1996-08-03', '9999-01-01'),
    ('3', '10003', 'Senior Engineer', '1995-12-03', '9999-01-01'),
    ('4', '10004', 'Senior Engineer', '1995-12-03', '9999-01-01'),
    ('5', '10001', 'Senior Engineer', '1986-06-26', '9999-01-01'),
    ('6', '10002', 'Staff', '1996-08-03', '9999-01-01'),
    ('7', '10003', 'Senior Engineer', '1995-12-03', '9999-01-01');
     

    2、代码

    replace into titles_test
    select 5, 10005, title, from_date, to_date
    from titles_test
    where id = 5;
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  • 原文地址:https://www.cnblogs.com/guoyu1/p/12715308.html
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