SQL Server timestamp timestampIn SQL Server Books Online, it says:The SQL Server timestamp data type is independent of time and date. SQL Server Timestamp is a binary number that indicates the relative order in which data modifications occur in the
Introduction to timestamp basic knowledge
Variant of the timestamp1,timestamp DEFAULT current_timestamp on UPDATE current_timestamp refreshes this data column when new records are created and existing records are modified
2,timestamp default
Because of the recent international go to Oracle on MySQL, this inevitably involves time zone and timestamp issues. Do an experiment and summarize.OracleFirst look at the definition of Oracle Concepts for timestamp:The TIMESTAMP data type is an
Variants of the timestamp 1,timestamp DEFAULT current_timestamp on UPDATE current_timestampRefreshes the data column when new records are created and existing records are modified 2,timestamp DEFAULT Current_timestamp This when creating a new
A variant of the timestamp
The timestamp timestamp can have multiple different characteristics when it is created, such as:
1. Refresh the data column when creating a new record and modifying an existing record:
TIMESTAMP DEFAULT
Mysql TIMESTAMP Usage Details, mysqltimestamp
1. TIMESTAMP variants
TIMESTAMP timestamps can have multiple different features during creation, such:
1. Refresh the data column when creating a new record or modifying an existing record:
TIMESTAMP
MysqlTIMESTAMP (timestamp) details bitsCN.com
TIMESTAMP variant1. timestamp default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP refresh this data column when creating a new record and modifying an existing record2, timestamp default
Time (converted from timestamp to timestamp)
Public class Date_U {/*** drop this method and enter the time to be converted, for example, ("June 14, 2014 seconds ") return timestamp ** @ param time * @ return */public String data (String time)
I. Variants of TIMESTAMPTimestamp timestamps can have multiple different features when created, such as:1. Refresh the data column when creating new records and modifying existing records:?
1
TIMESTAMPDEFAULT CURRENT_TIMESTAMP
1. TIMESTAMP variants
TIMESTAMP timestamps can have multiple different features during creation, such:
1. Refresh the data column when creating a new record or modifying an existing record:
TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE
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