SQL Date Functions In this section, we cover common date functions seen in SQL. Different database systems have different formats for date-type data, and each RDBMS may employ different date functions, and there may also be differences in the syntax for each RDBMS even when the function ...
Syntax Return value Return data type Determinism SYSDATETIME SYSDATETIME () Returns a datetime2(7) value that contains the date and time of the computer on which the instance of SQL Server is running. The time zone offset is not included. datetime2(7) Nondeterministic SYSDATETIMEOFFSET SYSDATET...
On 32-bit platforms, the supported range of values for this function is the same as for the TIMESTAMP type (see Section 13.2.1, “Date and Time Data Type Syntax”, for range information). On 64-bit platforms, beginning with MySQL 8.0.28, the maximum supported value is '3001-01-18 23...
If the value falls out of the supported range of the TIMESTAMP type when converted from from_tz to UTC, no conversion occurs. The TIMESTAMP range is described in Section 11.2.1, “Date and Time Data Type Syntax”. mysql> SELECT CONVERT_TZ('2004-01-01 12:00:00','GMT','MET'); ...
FunctionSyntaxReturns + (Concatenation) operator Concatenates a date to a time on either side of the + symbol and returns a TIMESTAMP or TIMESTAMPTZ. date + time TIMESTAMP or TIMESTAMPZ ADD_MONTHS Adds the specified number of months to a date or timestamp. ADD_MONTHS ({date|timestamp...
FunctionSyntaxReturn valueReturn data typeDeterminism SYSDATETIMESYSDATETIME ( )Returns adatetime2(7)value containing the date and time of the computer on which the instance of SQL Server runs. The returned value doesn't include the time zone offset.datetime2(7)Nondeterministic ...
For example, 'status' indicates the status string, and status or "status" indicates the status log field. Category Function Syntax Description Supported in SQL Supported in SPL Date and time functions current_date function current_date Returns the current date. √ × current_time function ...
It is a function from the SQL server. The date format in SQL is used for displaying the time and date in several layouts and representations. Syntax DATE_FORMAT (date, format) –Where date is a suitable date and Format tells about the layout to be represented. We have the perfect profess...
Data type conversions in general can be done by using the double colon notation (::). It’s standard syntax in PostgreSQL. In our specific example, it would look like this: SELECT current_timestamp::time; and SELECT current_timestamp::date; ...
For complete information regarding syntax and additional examples, see the description of theCAST()function. 有关语法和其他示例的完整信息,请参阅CAST()函数的说明。 Be aware of certain properties of date value interpretation in MySQL: 注意MySQL 中日期值解释的某些属性: ...