How do you tell the time difference on an Impala?
How do you tell the time difference on an Impala?
To determine the time zone of the server you are connected to, in Impala 2.3 and higher you can call the timeofday() function, which includes the time zone specifier in its return value.
How do you put a timestamp in a Chevy Impala?
The following examples demonstrate using TIMESTAMP values with built-in functions: select cast(‘1966-07-30’ as timestamp); select cast(‘1985-09-25 17:45:30.005′ as timestamp); select cast(’08:30:00’ as timestamp); select hour(‘1970-01-01 15:30:00’); — Succeeds, returns 15.
How do I convert date string to date in Impala?
For string to date/time conversions, any separator character in the pattern string would match any separator character in the input expression . For example, CAST(“20191010” AS DATE FORMAT “YYYY-MM-DD”) returns an error, but CAST(“2019-.;10 10” AS DATE FORMAT “YYYY-MM-DD”) succeeds.
How do you extract year and month from Impala?
Cloudera Impala Extract Numbers using Regular Expressions….Impala Extract Function Usage.
| Extract Function Units | Description |
|---|---|
| year | Returns year from timestamp |
| month | Return the number of the month within the year (1 – 12). |
| day | Return the day of the month. Between (1 – 31). |
| hour | Return the hour of the day (0 – 23). |
What is TIMESTAMP data type?
The TIMESTAMP datatype is an extension of the DATE datatype. It stores year, month, day, hour, minute, and second values. It also stores fractional seconds, which are not stored by the DATE datatype.
What is in a TIMESTAMP?
A timestamp is a sequence of characters or encoded information identifying when a certain event occurred, usually giving date and time of day, sometimes accurate to a small fraction of a second.
How do I cast a timestamp to a string in hive?
2.3 to_date(string timestamp) – Converts Timestamp string to Date type. to_date() function takes timestamp as an input string in the default format yyyy-MM-dd HH:mm:ss and converts into Date type.
What is Unix_timestamp in mysql?
MySQL – UNIX_TIMESTAMP() Function The MYSQL UNIX_TIMESTAMP() function converts the date or datetime expression as a UNIX timestamp and returns the result in the form of a string.
How do I get last 3 months data in Hive?
select (date_add(FROM_UNIXTIME(UNIX_TIMESTAMP(), ‘yyyy-MM-dd’), 2 – month(FROM_UNIXTIME(UNIX_TIMESTAMP(), ‘yyyy-MM-dd’)) )); This results in 2015-05-30. The results should be like: if Today is ‘2015-06-03’, then the result of last two months should be like: ‘2015-04-01’.
What is a timestamp used for?
Timestamps are used for keeping records of information online or on a computer. A timestamp displays when certain information was created, exchanged, modified or deleted. The following are examples of how timestamps are used: Computer files may contain a timestamp that shows when the file was last changed.
What is timestamp example?
The TIMESTAMP data type is used for values that contain both date and time parts. TIMESTAMP has a range of ‘1970-01-01 00:00:01’ UTC to ‘2038-01-19 03:14:07’ UTC. A DATETIME or TIMESTAMP value can include a trailing fractional seconds part in up to microseconds (6 digits) precision.
What is another word for timestamp?
In this page you can discover 11 synonyms, antonyms, idiomatic expressions, and related words for timestamp, like: , time stamp, checksum, timestamps, Dateime, ctime, mtime, CurrentTime, time-t, crlf and localtime.
