- StarRocks介绍
- 快速开始
- 表设计
- 数据导入
- 数据提取
- 使用StarRocks
- 参考手册
- SQL参考
-
用户账户管理
-
集群管理
- ADMIN CANCEL REPAIR
- ADMIN CHECK TABLET
- ADMIN REPAIR
- ADMIN SET CONFIG
- ADMIN SET REPLICA STATUS
- ADMIN SHOW CONFIG
- ADMIN SHOW REPLICA DISTRIBUTION
- ADMIN SHOW REPLICA STATUS
- ALTER CLUSTER
- ALTER SYSTEM
- CANCEL DECOMMISSION
- CREATE CLUSTER
- CREATE FILE
- DROP CLUSTER
- DROP FILE
- ENTER
- INSTALL PLUGIN
- LINK DATABASE
- MIGRATE DATABASE
- SHOW BACKENDS
- SHOW BROKER
- SHOW FILE
- SHOW FRONTENDS
- SHOW FULL COLUMNS
- SHOW INDEX
- SHOW MIGRATIONS
- SHOW PLUGINS
- SHOW TABLE STATUS
- UNINSTALL PLUGIN
-
DDL
- ALTER DATABASE
- ALTER TABLE
- ALTER VIEW
- BACKUP
- CANCEL ALTER
- CANCEL BACKUP
- CANCEL RESTORE
- CREATE DATABASE
- CREATE INDEX
- CREATE MATERIALIZED VIEW
- CREATE REPOSITORY
- CREATE RESOURCE
- CREATE TABLE LIKE
- CREATE TABLE
- CREATE VIEW
- CREATE FUNCTION
- DROP DATABASE
- DROP INDEX
- DROP MATERIALIZED VIEW
- DROP REPOSITORY
- DROP RESOURCE
- DROP TABLE
- DROP VIEW
- DROP FUNCTION
- HLL
- RECOVER
- RESTORE
- SHOW RESOURCES
- SHOW FUNCTION
- TRUNCATE TABLE
-
DML
- ALTER ROUTINE LOAD
- BROKER LOAD
- CANCEL LOAD
- DELETE
- EXPORT
- GROUP BY
- INSERT
- PAUSE ROUTINE LOAD
- RESUME ROUTINE LOAD
- ROUTINE LOAD
- SELECT
- SHOW ALTER
- SHOW BACKUP
- SHOW DATA
- SHOW DATABASES
- SHOW DELETE
- SHOW DYNAMIC PARTITION TABLES
- SHOW EXPORT
- SHOW LOAD
- SHOW PARTITIONS
- SHOW PROPERTY
- SHOW REPOSITORIES
- SHOW RESTORE
- SHOW ROUTINE LOAD
- SHOW ROUTINE LOAD TASK
- SHOW SNAPSHOT
- SHOW TABLES
- SHOW TABLET
- SHOW TRANSACTION
- SPARK LOAD
- STOP ROUTINE LOAD
- STREAM LOAD
-
数据类型
-
辅助命令
-
- 函数参考
- 日期函数
- convert_tz
- curdate
- current_timestamp
- curtime
- datediff
- date_add
- date_format
- date_sub
- date_trunc
- day
- dayname
- dayofmonth
- dayofweek
- dayofyear
- from_days
- from_unixtime
- hour
- minute
- month
- monthname
- now
- second
- str_to_date
- timediff
- timestampadd
- timestampdiff
- to_date
- to_days
- unix_timestamp
- utc_timestamp
- weekofyear
- year
- 地理位置函数
- 字符串函数
- append_trailing_char_if_absent
- ascii
- char_length
- concat
- concat_ws
- ends_with
- find_in_set
- get_json_double
- get_json_int
- get_json_string
- group_concat
- instr
- lcase
- left
- length
- locate
- lower
- lpad
- ltrim
- money_format
- null_or_empty
- regexp_extract
- regexp_replace
- repeat
- reverse
- right
- rpad
- split_part
- starts_with
- strleft
- strright
- 聚合函数
- Bitmap函数
- 数组函数
- cast函数
- hash函数
- 日期函数
- 系统变量
- 错误码
- 系统限制
- SQL参考
- 管理手册
- 常见问题解答
- 性能测试
- Release Notes
timestampdiff
description
Syntax
INT TIMESTAMPDIFF(unit,DATETIME datetime_expr1, DATETIME datetime_expr2)
返回datetime_expr2−datetime_expr1,其中datetime_expr1和datetime_expr2是日期或日期时间表达式。
结果(整数)的单位由unit参数给出。interval的单位由unit参数给出,它应该是下列值之一:
SECOND, MINUTE, HOUR, DAY, WEEK, MONTH, or YEAR。
example
MySQL> SELECT TIMESTAMPDIFF(MONTH,'2003-02-01','2003-05-01');
+--------------------------------------------------------------------+
| timestampdiff(MONTH, '2003-02-01 00:00:00', '2003-05-01 00:00:00') |
+--------------------------------------------------------------------+
| 3 |
+--------------------------------------------------------------------+
MySQL> SELECT TIMESTAMPDIFF(YEAR,'2002-05-01','2001-01-01');
+-------------------------------------------------------------------+
| timestampdiff(YEAR, '2002-05-01 00:00:00', '2001-01-01 00:00:00') |
+-------------------------------------------------------------------+
| -1 |
+-------------------------------------------------------------------+
MySQL> SELECT TIMESTAMPDIFF(MINUTE,'2003-02-01','2003-05-01 12:05:55');
+---------------------------------------------------------------------+
| timestampdiff(MINUTE, '2003-02-01 00:00:00', '2003-05-01 12:05:55') |
+---------------------------------------------------------------------+
| 128885 |
+---------------------------------------------------------------------+
keyword
TIMESTAMPDIFF