When we want to calculate difference between dates in days. This is the most used scenario where we require to calculate difference of dates in days. Select DATEDIFF (day,'2020-08-19′,'2020-08-22′) As Date_Difference from Dual The difference in hours, minutes or seconds can be found by multiplying this number by 24, 24*60 or 24*60*60 respectively. The previous example can be changed to get the days, hours, minutes and seconds between two dates using Once you have the date difference, you can use simple techniques to express the difference in days, hours, minutes or seconds. The minus sign is used to compute the difference between two dates: SQL> select 24 * (to_date ('20014-06-19', 'YYYY-MM-DD') - to_date ('2010-07-07', 'YYYY-MM-DD')) date_difference from dual Home SQL Difference Between Two Timestamps. Difference Between Two Timestamps. Easy, right? Perhaps not as straightforward as you'd think. Method #1: use EXTRACT. extract(day from (x-y))*24*60*60 + extract(hour from (x-y))*60*60 + extract(minute from (x-y))*60 + extract(second from (x-y)) Method #2: use CAST ( CAST( x AS DATE ) - CAST( y AS DATE ) ) * 8640
Next we will see how to convert between timestamps and dates. Converting Between Timestamps and Dates. The CAST function can be used to convert a TIMESTAMP to a DATE and vice versa. First let's convert a TIMESTAMP to a DATE. SELECT CAST(SYSTIMESTAMP AS DATE) ts_to_date FROM dual; TS_TO_DAT ----- 08-SEP-13 SQL> To convert a DATE to a TIMESTAMP do the following two dates or what is the amount of elapsed time. With Oracle Dates, this is pretty trivial, you can get either TOTAL (days, hours, minutes, seconds) between 2 dates simply by subtracting them or with a little mod'ing you can get Days/Hours/Minutes/Seconds between 1. After hours of searching over the internet, I was able to find a shorter version of the code that I was asking for. After several attempts of deriving the code I found here. (CAST ( (SYSTIMESTAMP + interval '35' minute) as date) - CAST (SYSTIMESTAMP as date)) * 1440. Result: +--------+ | Result | +--------+ | 35 | +--------+
with rws as ( select timestamp'2017-03-01 01:00:00' t1, timestamp'2017-03-01 02:34:56' t2 from dual ) select extract(hour from (t2-t1)) hrs, extract(minute from (t2-t1)) mins, extract(second from (t2-t1)) secs, t2-t1 diff_interval from rws; HRS MINS SECS DIFF_INTERVAL 1 34 56 +00 01:34:56.00000 Zero hours and 1 day. So you should do this: SQL> select abs(24*extract(day from diff)+extract(hour from diff)) hrs from ( 2 select 3 to_timestamp_tz( '28-JAN-2016 10:30:00.000000 PM +00:00', 'dd-mon-yyyy hh:mi:ssxff PM tzh:tzm') - 4 to_timestamp_tz( '29-JAN-2016 10:30:00.000000 PM +00:00', 'dd-mon-yyyy hh:mi:ssxff PM tzh:tzm') diff 5 from dual 6 ); HRS ----- 2
mysql> SELECT TIME_FORMAT('100:00:00', '%H %k %h %I %l');-> '100 100 04 04 4' TIME_TO_SEC(time) Returns the time argument, converted to seconds. mysql> SELECT TIME_TO_SEC('22:23:00');-> 80580 mysql> SELECT TIME_TO_SEC('00:39:38');-> 2378 TO_DAYS(date) Given a date date, returns a day number (the number of days since year Get the days different in hh:mm:ss ; Breadcrumb. Question and Answer . Thanks for the question, Gnanaparan. Asked: June 12, 2000 - 9:55 pm UTC. Last updated: April 29, 2020 - 4:17 pm UTC. Version: Oracle 7.3, Sqlplus 3.3. Viewed 10K+ times! This question is . You Asked . Hi Tom, I have worked out to get no of days between two days. I want to get in hh:mm:ss format. This is the sql. System date. I would like to be able to combine the date and number value together to represent a date/time and subtract this from the current date/time and show the difference in hours and minutes. For Example say the current date/time was 19th April 2017 13.25pm and the startdate/time was 18th April 2017 21.45pm then the difference between these two values would be 15 hours 40 mins written as 15.4
Date Data Type. DATE is the oracle datatype that we are all familiar with when we think about representing date and time values. It has the ability to store the month, day, year, century, hours, minutes, and seconds. The problem with the DATE datatype is its' granularity when trying to determine a time interval between two events when the events happen within a second of each other The fractional portion of the result represents that portion of a 31-day month. Oracle Database performs all timestamp arithmetic in UTC time. For TIMESTAMP WITH LOCAL TIME ZONE data, Oracle Database converts the datetime value from the database time zone to UTC and converts back to the database time zone after performing the arithmetic. For TIMESTAMP WITH TIME ZONE data, the datetime value is. Simplest way to get the time difference is to obtain the date difference which is given in days and then multiply it by 24*60*60 to get the end results in seconds. Another way to get the difference in seconds is by using the EXTRACT function If date1 and date2 are either the same days of the month or both last days of months, then the result is always an integer. Otherwise Oracle Database calculates the fractional portion of the result based on a 31-day month and considers the difference in time components date1 and date2. Examples. The following example calculates the months between two dates: SELECT MONTHS_BETWEEN (TO_DATE('02.
Consider SQL Server function to calculate the difference between 2 dates in days: . SQL Server: -- Difference between Dec 29, 2011 23:00 and Dec 31, 2011 01:00 in days SELECT DATEDIFF (day, '2011-12-29 23:00:00', '2011-12-31 01:00:00'); -- Result: 2. Note that DATEDIFF returned 2 days, although there is only 1 day and 2 hours between the datetime values In oracle, if you subtract two timestamps, the result is of type interval. Its somewhat cumbersome to get the total number of seconds this interval represents. Here's an Oracle function which will yield the total number of seconds between two timestamps : Using the above, we can get the toal time in seconds, between tw
TO_CHAR(CREATED,'DD-MON-YYYYHH24:MI:SS') Dy Hr Mi Sec TO_CHAR(SYSDATE,'DD-MON-YYYYHH24:MI:SS') Tdy Thr Tmi Tsec; 16-feb-2018 05:00:18: 79: 12: 42: 9: 06-may-2018 17:42:2 Dates, Time Stamps, and Intervals in PL/SQL. Most applications require the storage and manipulation of dates and times. Unlike strings and numbers, dates are quite complicated: not only are they highly formatted data, but there are also many rules for determining valid values and valid calculations (leap days and years, daylight saving time changes, national and company holidays, date ranges. Scenario It was required to take a full extract of Service Requests from database. But there was a calculated field Days Open as follows: IIf ([Status] = LookupValue(SR_STATUS, Open), Timestamp() - [Created],[Updated] - [Created]) Now the target was to design an Oracle SQL for calculating number of days a Service Request was open. Solution select s.row_i
Here is an elegant example snippet of a PL/SQL function to accept two timestamps and return the difference. You specify the difference units when you execute the sample timestamp difference, getting the output units in milliseconds, seconds, minute, hours, or days. create or replace function timedif Oracle supports date arithmetic and you can make expressions like date1 - date2 to get the difference between the two dates. Once you have the date difference, you can use simple techniques to express the difference in days, hours, minutes or seconds. Also note SQL to convert a day of the week to a number
To get the DATEdifference you have only to calculate test_time-SYSDATE This difference of two DATE values gives the number of days. Therefore you have to multiply the above value by 1440 (=24*60, the number of minutes per day). You end up with. select (test_time - sysdate)*24*60 from test; This value is negative if test_time is lies in the past. Calculating the time difference between two TIMESTAMP datatypes is much easier than the old DATE datatype. Look at what happens when you just do straight subtraction of the columns in Listing F. As you can see, the results are much easier to recognize, 17days, 18hours, 27minutes, and 43seconds for the first row of output select extract(day from diff) Days, extract(hour from diff) Hours, extract(minute from diff) Minutes from ( select (CAST(creationdate as timestamp) - CAST(oldcreationdate as timestamp)) diff from [TableName] ); Dies gibt Ihnen drei Spalten als Tage, Stunden und Protokoll Convert them to Oracle dates. When you subtract the two, you can use this kind of a conversion: select ((sysdate - (sysdate -120/1440))*86400)/3600 from dual This will give a result in hours (there are 86400 seconds in a day and 3600 in an hour)
. select localtimestamp + interval '0 1:30:00.000' day to second in_anderthalb_stunden from dual; select localtimestamp + interval '2-11' year to month zwei_jahr_11_monate from dual; 1. 2 SQL> create table mytimestamps( ts timestamp with local time zone ); Table created. SQL> insert into mytimestamps values ( systimestamp ); 1 row created. SQL> alter session set time_zone='Europe/Berlin'; Session altered. SQL> select * from mytimestamps; TS ----- 2017-11-24 12:55:39.761283 SQL> alter session set time_zone='EST'; Session altered Oracle - EXTRACT - Extract Day, Month, Year, Hours, Minutes, Seconds etc. EXTRACT function gets the specified part (day, month, year, hours, minutes etc.) from a datetime value. Quick Example : Get the day from January 12, 2011: SELECT EXTRACT ( DAY FROM DATE '2011-01-12') FROM dual; -- Result: 12 Datetime SQL Functions. Datetime functions operate on date (DATE), timestamp (TIMESTAMP, TIMESTAMP WITH TIME ZONE, and TIMESTAMP WITH LOCAL TIME ZONE) and interval (INTERVAL DAY TO SECOND, INTERVAL YEAR TO MONTH) values. Some of the datetime functions were designed for the Oracle Database DATE datatype DATE is the oldest and most commonly used datatype for working with dates in Oracle applications. TIMESTAMP—Time stamps are similar to dates, but with these two key distinctions: (1) you can store and manipulate times resolved to the nearest billionth of a second (9 decimal places of precision), and (2) you can associate a time zone with a time stamp, and Oracle Database will take that time zone into account when manipulating the time stamp.
Since taking the difference between two dates in Oracle returns the difference in fractional days, you need to multiply the result by 1440 to translate your result into elapsed minutes. 24 * 60 = 1440 24 hours in a day * 60 minutes in an hou Oracle - Differences between DATE and TIMESTAMP in Oracle - Feb 18, 2010 at 11:00 PM by Rajmeet Ghai Differences between DATE and TIMESTAMP in Oracle. DATE in Oracle returns month, day, year, century, hours, minutes, and seconds. For more granular details, TIMESTAMP should be used. TIMESTAMP also returns fraction of seconds that helps to. SELECT TO_DATE (date1, 'yyyy/mm/dd') + ((TO_DATE (date2, 'yyyy/mm/dd') - TO_DATE (date1, 'yyyy/mm/dd')) /2) FROM dual; This will calculate the elapsed time between date1 and date2. Then it takes half of the elapsed time and adds it to date1. This should give you the average date
So, in the first row, it calculates a 1 day difference between DATE1 and DATE2, even though there is less than a 24 hour period between them. To use the Timestampdiff function to get accurate results, you need to calculate the difference in days using a smaller time parameter, e.g. sql_tsi_minute. The formula below uses the Timestampdiff. Oracle's date-time fields are CENTURY, YEAR, MONTH, DAY, HOUR, MINUTE and SECOND. The TIMESTAMP data types represent seconds as fractional seconds with its precision is determined by the fractional_seconds_precision parameter. It also includes the fields TIMEZONE_HOUR, TIMEZONE_MINUTE, TIMEZONE_REGION and TIMEZONE_ABBR. It internally converts the Oracle timestamp to date values. `The default time for the time component is midnight and the default date for the date component is the first. The second solution is to calculate the difference between the given dates in one query These SQL queries computes the time difference using first the seconds (multiplied by one hour in seconds is 60 * 60 = 3600. Then using the milliseconds (multiplied by one hour in milliseconds as 60 * 60 * 1000 = 3600 * 1000) One of the confounding problems with Oracle DATE datatypes is the computation of elapsed time. Oracle supports date arithmetic and you can make expressions like date1 - date2 to get the difference between the two dates. Once you have the date difference, you can use simple techniques to express the difference in days, hours, minutes or seconds. To get the values for data differences, you. It operates according to the rules of the Gregorian calendar. The value returned is always of data type DATE, even if you specify a different datetime data type for date. If you omit fmt, then the default format model 'DD' is used and the value returned is date truncated to the day with a time of midnight
Oracle Database and PL/SQL provide a set of date and time datatypes that store both date and time information in a standard internal format: Here are the datatypes you can use for dates and times: DATE: This datatype stores a date and a time, resolved to the second. It does not include the time zone. TIME(s): This describes a time on a particular day, with seconds precision s, using the fields. TIMESTAMP_ADD(timestamp_expression, INTERVAL int64_expression date_part) Description. Adds int64_expression units of date_part to the timestamp, independent of any time zone. TIMESTAMP_ADD supports the following values for date_part: MICROSECOND; MILLISECOND; SECOND; MINUTE; HOUR. Equivalent to 60 MINUTEs. DAY. Equivalent to 24 HOURs. Return Data Types. TIMESTAMP SQL> alter session set time_zone = dbtimezone; Session altered. SQL> select current_date, sysdate from dual; CURRENT_DATE SYSDATE----- -----2012-09-21 02:44:30 2012-09-21 03:44:30. 1 row selected. SQL> select dbtimezone from dual; DBTIME-----05:00. 1 row selected. SQL> alter session set time_zone = 'Canada/Eastern'; Session altered In Oracle, TO_DATE function converts a string value to DATE data type value using the specified format. In SQL Server, you can use CONVERT or TRY_CONVERT function with an appropriate datetime style. Oracle : -- Specify a datetime string and its exact format SELECT TO_DATE ('2012-06-05', 'YYYY-MM-DD') FROM dual; SQL Server
Hi All, I have two date Suppose one is getdate() and other one is gatedate() +1 .I have to show the difference, currently I used a datediff in the stored proc which just shows the difference of the days :( but i need to show the difference in days:hours:minutes:seconds if possible. its a countdown with the current date. Like the two fields are sale_start_date and sale_end_date The Oracle TO_TIMESTAMP function is useful if you need to work with timestamp data types. Learn how to use it with some examples in this article. Purpose of the Oracle TO_TIMESTAMP Function. The purpose of the Oracle TO_TIMESTAMP function is to convert a string value into a timestamp value. Now, a TIMESTAMP value is a type of date. It includes the date, the time, and a series of decimal places.
This causes a very big difference in the results! DateTime Durations That Span Multiple Days. Finally, addressing point #2, if we return our duration using the DateTime data type, we need to be sure that our client does not ignore dates other than 1900-01-01. In this case, our TotalDuration value has a date of 1900-01-02, meaning that the duration is not just 17 hours but one day plus 17. Oracle DATE und TIMESTAMP - Rechnen in SQL und PL/SQL mit Datumsangaben Das Rechnen mit Datumsangaben ist in SQL je nach Datentyp recht einfach. Wichtig ist aber zu beachten, dass der Oracle Date Datentyp IMMER auch die Uhrzeit enthält! Der Werte Bereich für eine Datum fü Example. Let's look at some Oracle TO_DATE function examples and explore how to use the TO_DATE function in Oracle/PLSQL. For example: TO_DATE('2003/07/09', 'yyyy/mm/dd') Result: date value of July 9, 2003 TO_DATE('070903', 'MMDDYY') Result: date value of July 9, 2003 TO_DATE('20020315', 'yyyymmdd') Result: date value of Mar 15, 2002 You could use the TO_DATE function with the dual table as.
See Date and Time Data Types and Functions (Transact-SQL) For second, the maximum difference is 68 years, 19 days, 3 hours, 14 minutes and 7 seconds. Wenn startdate und enddate jeweils nur ein Uhrzeitwert zugewiesen ist und datepart kein Zeit-datepart ist, gibt DATEDIFF 0 (null) zurück. If startdate and enddate are both assigned only a time value, and the datepart is not a time datepart. Oracle allows us to perform arithmetic operations on the Date and the Timestamp data types between a Date/ Timestamp variable and an integer or between two Dates/ Timestamp variables. Date The Date data type can be used for storing fixed length date-time, which includes Date, Month, Year, Hours, Minutes and Seconds The function SYSDATE() returns a 7 byte binary data element whose bytes represents:. century, year, month, day, hour, minute, second; It's important to know that select sysdate from dual in SQL*Plus gives the same result as select to_char(sysdate) from dual because SQL*Plus binds everything into character strings so it can print it. For more detailed explanation, look at Thomas Kyte comment. TIME: time (no day) TIME '2021-03-25 20:45:16' 20:45:16: INTERVAL: interval between two date/times : INTERVAL '1 day 2 hours 10 seconds' 1 day, 2:00:10: We'll go over more about each of these. Date String Formatting. Dates in a database aren't stored as strings, but we input and fetch data from it as if it were a string with the following format for the information: YYYY-MM-DD HH: MM: SS.
This Oracle tutorial explains how to use the Oracle BETWEEN condition with syntax and examples. The Oracle BETWEEN condition is used to retrieve values within a range in a SELECT, INSERT, UPDATE, or DELETE statement To see the current system date and time with fractional seconds with time zone give the following statement . select systimestamp from dual; SYSTIMESTAMP-----22-APR-03 08.38.55.538741 AM -07:00 . DATE FORMAT MODELS. To translate the date into a different format string you can use TO_CHAR function with date format. For example to see the current.
I want to calculate the time difference between the two dates. Actually the second date contains second day early morning 1'o clock and 28 minutes. But in my case it assumes as afternoon. For example . Date01 : '01-SEP-2015 22:21:00' Date02 : '02-SEP-2015 01:28:00 The Oracle SYSDATE function is used to show the current date and time of the operating system that the database runs on. We have multiplied the day difference by 24 to convert to hours, and then by 60 to convert to minutes, and then by 60 again to convert to seconds. Example 4 - Formatting SYSDATE with TO_CHAR. This example shows how we can format the output of SYSDATE to show the time. This Oracle tutorial explains how to use the Oracle / PLSQL SYSTIMESTAMP function with syntax and examples. The Oracle / PLSQL SYSTIMESTAMP function returns the current system date and time (including fractional seconds and time zone) on your local database The time zone offset reflects the current local time of the SQL session. The default precision value is 6. CURRENT_TIMESTAMP returns a TIMESTAMP WITH TIME ZONE value while LOCALTIMESTAMP returns a TIMESTAMP value. Applies to: Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i. Pictorial Presentation. Example: Oracle CURRENT_TIMESTAMP() function . In the following example we have used different.
How To Use T-SQL To Subtract Dates And Calculate Time Span? From time to time, you'll need to find out duration of some process, get age from birthday, find how many days till anniversary, etc. In cases like this, you need to subtract two dates and calculate difference (time span) between them. The simplest approach is to subtract times directly. If you try: SELECT FinishTime -StartTime FROM. DATETIMEFROMPARTS (year, month, day, hour, minute, seconds, milliseconds) DATETIMEFROMPARTS ( year, month, day, hour, minute, seconds, milliseconds) Gibt einen datetime-Wert für das angegebene Datum und die Uhrzeit zurück. Returns a datetime value for the specified date and time. datetime datetime: Deterministisch Deterministi Converting to a Date in Oracle SQL. Just like with the number and string types, there are two ways to convert to a date type. However, in Oracle, there are two main data types for storing dates: DATE - stores the day, month, and year, hour, minute, and second. TIMESTAMP - stores the day, month, year, hour, minute, second, and fraction of a. select convert (time, sysdatetime()) ,convert (time, sysdatetimeoffset()) ,convert (time, sysutcdatetime()) ,convert (time, current_timestamp) ,convert (time, getdate()) ,convert (time, getutcdate()); /* returned sysdatetime() 13:18:45.3490361 sysdatetimeoffset()13:18:45.3490361 sysutcdatetime() 20:18:45.3490361 current_timestamp 13:18:45.3470000 getdate() 13:18:45.3470000 getutcdate() 20:18:45.3470000 *
. DATETIME_DIFF with the date part YEAR returns 3 because it counts the number of Gregorian calendar year boundaries between the two DATETIMEs. DATETIME_DIFF with the date part ISOYEAR returns 2 because the second DATETIME belongs to the ISO year 2015. The. DATE oder TIMESTAMP? Die Oracle-Datenbank bietet vier Datentypen zum Speichern von Zeitstempeln an: DATE ist der älteste Datentyp zum Speichern von Zeitstempeln in der Datenbank. Anders als der Name nahelegt, speichert DATE immer sowohl das Datum als auch die Uhrzeit ab. Intern werden ganz konkrete Werte für Jahr, Monat, Tag, Stunde, Minute und Sekunde abgelegt. Die SQL-Funktion SYSDATE gibt.
Day: Full name of the day with the first letter in uppercase. DY: First three letters of the name of the day in uppercase. Dy: First three letters of the name of the day with the first letter in uppercase. J: Julian day-the number of days that have passed since January 1, 4713 B.C. HH24: Two-digit hour in 24-hour format. (0-23) HH12: Hour of. Can anyone help me in creating a SQL statement in oracle to get the number of days, hours and minutes between to dates that excludes weekends? I have a table with the following dates: File Date and System Date They are both in VARCHAR2(100) and out put is as follows: 2011-JAN-2 07:57 I am converting the time to appear on the report as follows first: to_char(to_date(T.SYS_DT_T M,'YYYY-MM-DD. Sybase SQL Anywhere DATETIME data type stores date and time data - year, month, hour, minute, second and fraction of a second. Quick Example: -- Define a table with a DATETIME column in Sybase SQL Anywhere CREATE TABLE orders ( order_datetime DATETIME ); -- Insert a datetime value - March 20, 2012 05:09:31.123456 INSERT INTO orders VALUES ('2012-03-20 05:09:31.123456') Because NULL and an empty string are equal in Oracle (but not in ANSI SQL), this transformation is not required here. For all columns of data types NUMBER, DATE or TIMESTAMP, an implicit type conversion to VARCHAR2 is performed. This may cause problems with dates, if different NLS settings are used. For the example above, column hirre_date should be converted explicitly with the TO_CHAR.
This article explores the main differences between the datetime and datetime2 data types in SQL Server. If you're not sure which one to use, use datetime2 (see its advantages below). Here's a table that outlines the key differences between these two types. Feature datetime datetime2 SQL Compliant (ANSI & ISO 8601) No Yes Date Range Note that HH uses 24-hour time — the range is from 00 to 23. (SQL Server also includes optional fractions of a second, like this: YYYY-MM-DD hh:mm:ss[.nnn], where .nnn is a decimal fraction of a second with an upper range of .997. The last possible moment before midnight in SQL Server DATETIME format is 23:59:59.997. Questions connexes. 1 Dans Oracle, existe-t-il une fonction qui calcule la différence entre deux dates?; 0 comment convertir l'heure de la date au format d'heure de date d'oracle en php; 0 java simple date modèle TO oracle sql date modèle; 0 Oracle: calculer la durée entre deux dates au format spécifique-2 Oracle SQL Date n'affiche pas l'heure? Comment montrer le temps entre deux dates Oracle's windowing functions allow aggregates to be calculated for each row in a result set based on a specified window. The aggregation window can be defined in one of three ways: By specifying a set of rows: From the current row to the end of the partition By specifying a time interval: For the 30 days preceding the transaction date By specifying a range of values: All rows having a. SQL Server Execution Times: CPU time = 4585 ms, elapsed time = 26785 ms. SQL Server Execution Times: CPU time = 0 ms, elapsed time = 0 ms. BETWEEN DATES (151208 row(s) affected) Table 'tbl_WeatherObservations'. Scan count 1, logical reads 173624, physical reads 346, read-ahead reads 173341, lob logical reads
Insert Date, time and date time data to Oracle : Date Time Timestamp « Database SQL JDBC « Jav ZoneOffset is the period of time representing a difference between Greenwich/UTC and a time zone. This can be resolved for a specific ZoneId at a specific moment in time, as shown in Listing 7. ZoneOffset offset = ZoneOffset.of(+2:00); Listing 7. Time Zone Classes . ZonedDateTime is a date and time with a fully qualified time zone (see Listing 8). This can resolve an offset at any point in time. The rule of thumb is that if you want to represent a date and time without relying on the. SQL> insert into zeitstempel values ( systimestamp ); 1 row created. SQL> alter session set time_zone='Europe/Berlin'; Session altered. SQL> select * from zeitstempel; TS ----- 2017-11-24 12:55:39.761283 SQL> alter session set time_zone='EST'; Session altere NUMBER Subtypes: This sub type supported ANSI, DB2, and SQL data type define different type SQL automatically converts character value in to default date format ('DD-MON-YY') TO_DATE values. Following are Date/Time data types in Oracle SQL. Datatype Description Range; DATE: DATE data type to store valid date-time format with fixed length. Starting date from Jan 1, 4712 BC to Dec 31, 9999. The DATE type, which represents a date and time. A value stored in a DATE field contains components corresponding to the century, year, month, day, hour, minute and second. Dates can be anywhere in the range from January 1, 4712 B.C., to December 31, 9999 A.D. The TIMESTAMP type, available since Oracle9i, is effectively an extended form of the DATE type and complies with ANSI SQL