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May 9, 2014 02:57
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[mysql]在MySQL数据库中拷贝数据表
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-- 在 MySQL 中拷贝表,将 old_table 表拷贝为 new_table 表。 | |
-- 1. 不拷贝表数据,只拷贝结构。 | |
CREATE TABLE new_table LIKE old_table | |
-- 2. 通过 SELECT 查询来拷贝,new_table 表会丢失主键、索引等信息。 | |
CREATE TABLE new_table AS | |
( | |
SELECT * | |
FROM old_table | |
) | |
-- 3. 完全拷贝表 | |
CREATE TABLE new_table LIKE old_table; | |
INSERT INTO new_table SELECT * FROM old_table; | |
-- 4. 仅拷贝字段 | |
CREATE TABLE new_table AS | |
( | |
SELECT field1, field2 FROM old_table | |
) | |
-- 5. 部分拷贝 | |
CREATE TABLE new_table AS | |
( | |
SELECT * FROM old_table WHERE field1 = 'mangguo' | |
) |
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