Infinitytimestamp 比任何其它时间戳都晚. Infinity timestamp earlier than all other time stamps. 该天所在的该年的季度(1-4)(仅用于timestamp 值). The quarter of the year(1- 4) that the day is in(for timestamp values only). Infinitytimestamp 比任何其它时间戳都早. Infinity timestamp earlier than all other time stamps. 在DDL语句,请尽量使用rowversion而不是timestamp 。 In DDL statements, use rowversion instead of timestamp wherever possible.
Nowdate,time,timestamp 当前事务的开始时间. Now date, time, timestamp current transaction's start time. The timestamp value is based upon an internal clock and does not correspond to real time. Infinitydate,timestamp 比任何其它时间戳都早. Infinity date, timestamp earlier than all other time stamps. Timestamp 值基于内部时钟,不对应真实时间。The timestamp value is based upon an internal clock and does not correspond to real time. 对行的任何更新都会更改timestamp 值,从而更改键值。 Any update made to the row changes the timestamp value, thereby changing the key value. 只有Timestamp 数据类型的值是受时区影响的。 Only the values of the Timestamp data type is affected by time zone. 在本节中,我想介绍两个并非专用于安全性的项目:wsu:Id和wsu:Timestamp 。 In this section, I want to take a look at two items that are not specific to security: wsu: Id and wsu: Timestamp . Timestamp 数据类型只是递增的数字,不保留日期或时间。The rowversion data type is just an incrementing number and does not preserve a date or a time. Sql_variant|存储最多8,000字节不同数据类型的数据,除了text、ntext以及timestamp 。 Sql_variant Stores up to 8,000 bytes of data of various data types, except text, ntext, and timestamp . SQL-92timestamp 数据类型等价于T-SQL中的datetime数据类型。 The SQL-92 timestamp data type is equivalent to the Transact-SQL datetime data type. Age函数用于返回某人在date_of_birth出生的timestamp (完整年份)时的年龄。 The age function returns the age at the time of timestamp (in completed years) of somebody born on date_of_birth. 实现timestamp 数据类型最初是为了支持SQLServer恢复算法。 The timestamp data type was originally implemented to support the SQL Server recovery algorithms. 返回类型可以是除text、ntext、image、cursor和timestamp 之外的任何数据类型。 We can utilize any SQL data type as the return type with the exception of image, text, ntext, cursor, and timestamp . Now()timestamp withtimezone当前事务开始时的时间戳;见节9.9.4. Now() timestamp with time zone Current date and time(equivalent to current_timestamp); see Section 9.9.4. 其他数据类型:数据类型描述sql_variant存储最多8,000字节不同数据类型的数据,除了text、ntext以及timestamp 。 Sql_variant Stores up to 8,000 bytes of data of various data types, except text, ntext, and timestamp . Timestamp 的值在第四个月中开始的财政年内,并在base_date的值之前。The value of timestamp falls inside the fiscal year beginning in the fourth month and before the value of base_date. 如果一个文本已被确定是timestamp withouttimezone,PostgreSQL将不声不响忽略任何文本中指出的时区。 In a literal that has been determined to be timestamp without time zone, PostgreSQL will silently ignore any time zone indication. Sqlservertimestamp 是二进制数字,它表明数据库中数据修改发生的相对顺序。 SQL Server timestamps are binary numbers that indicate the relative sequence in which data modifications took place in a database. 例如,我们可能最终不得不对每次测量的sensor_id和timestamp 进行索引,实现以内存为代价的快速访问。 For example, we could end up having to index sensor_id and timestamp for every single measurement to enable rapid access at the cost of RAM. T-SQLtimestamp 数据类型与在SQL-92标准中定义的timestamp 数据类型是不同的。 Although SQL Server has a type called timestamp , it is not the same as the timestamp data type defined in the SQL-92 standard. 每次修改或插入包含timestamp 列的行时,就会在timestamp列中插入增量数据库时间戳值。 Every time that a row with a timestamp column is modified or inserted, the incremented database timestamp value is inserted in the timestamp column. OriginateTimestamp :这是向服务器请求分离客户机的时间,采用64位时标(Timestamp )格式。 Originate Timestamp : This is the local time at which the request departed the client for the server, in 64-bit timestamp format. 此函数用于返回True,如果timestamp 位于包含base_date为止以及包括base_date最后毫秒的年份部分以内。 This function returns True if timestamp lies inside the part of year containing base_date up until and including the last millisecond of base_date. 所有价格值和TimeStamp 都是MicrosoftExcel本机细胞,意味着我们的免费外汇历史数据的使用现在更容易。 All the price values and TimeStamp are Microsoft Excel native cells meaning that the usage of our Free Forex Historical Data is now easier.
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