DELETE、TRUNCATE和DROP

Database 2019-11-14 09:10:37 views: null

effect

DELETE

delete a data manipulation language, you can delete the table where records specified in the statement, reserved table structure, not free up storage space.
DELETE、TRUNCATE和DROP

TRUNCATE

truncate data definition language, empty table, which is equivalent to delete all the data in the table, reserved table structure, free up storage space.
DELETE、TRUNCATE和DROP

DROP

drop is a data definition language, when you delete, erase all records in the table and delete the table structure, free up storage space.
DELETE、TRUNCATE和DROP

Value Line Efficiency

drop > truncate > delete

Affairs

DELETE

Before uncommitted transaction, use rollback transaction rollback.

TRUNCATE

Implicit transaction is committed, you can not use rollback transaction rollback.

DROP

Implicit transaction is committed, you can not use rollback transaction rollback.

Reference material

https://xiaozhuanlan.com/topic/6375814029
https://juejin.im/post/5dc03bca6fb9a04aa00147d6

Guess you like

Origin blog.51cto.com/13646338/2450123

DELETE、TRUNCATE和DROP

delete, drop, truncate the difference?

mysql in truncate, delete and drop

TRUNCATE, Drop, Delete usage

In Oracle delete, truncate and drop

oracle - the difference delete truncate drop

Compare Sql in truncate, delete and drop the

Mysql difference of drop, truncate and delete

Mysql difference in drop, truncate and delete

MySQL--delete/truncate/drop

The difference between drop truncate delete

Difference between truncate, delete, drop

The difference between truncate, delete and drop

The difference between drop, truncate and delete

The difference between drop, delete and truncate

Delete table statement (drop truncate delete)

The difference between Delete, truncate, drop delete data

mysql delete table data (drop, truncate and delete)

Understanding and summary of the sql delete, truncate, drop the

Hive operation - delete a table (drop, truncate)

Distinction between SQL encountered drop, truncate and delete

MySQL statement: usage of drop, truncate, delete

(Reproduced) The difference between drop, truncate and delete

What is the difference between delete drop truncate?

GaussDB database SQL series: DROP & TRUNCATE & DELETE

DELETE、TRUNCATE和DROP

DELETE, TRUNCATE 和 DROP

In SQL-delete the difference between table data drop, truncate and delete

What is the difference between MySQL delete data drop, truncate and delete

Recommended

The number of MaxKB GitHub Stars, an open source knowledge base question and answer system based on large language models, exceeded 5,000!

Ranking

Getting the basic concepts of ROS + catkin Profile

Spring Learning (2) --- Assembling Beans in the IoC Container

js to get the src attribute of the image regularly

STM32 is based on CubeIDE and HAL library basics entry study notes: Bluetooth WIFI STM32 connects to Alibaba Cloud

Short video learning - 3, pandas simple use of pivot_table

Print directory of project configuration log, output log

Understand the difference between vi and vim in Linux in 3 minutes

1 + x certificate Web front-end development HTML5 special exercises

mangodb save and insert the difference

7-1 Family tree processing (50 points) (binary tree solution)

Daily

2024-05-13(8)

2024-05-12(28)

2024-05-11(32)

2024-05-10(34)

2024-05-09(32)

2024-05-08(18)

2024-05-07(34)

2024-05-06(6)

2024-05-05(0)

2024-05-04(18)