As expression2 is optional in nature, if it is not specified then the usage of only one argument then it should be any expression that gives the output return value in either DATE, character string provided it is not a CLOB value, or TIMESTAMP built-in datatypes.There are certain rules to be followed while using this function and expression 2 argument that is supplied which are mentioned below – Note that TIMESTAMP is the function available to use with graphic strings to represent the date, time, or timestamp only in Unicode databases because the graphic string provided in the argument is converted into a character string and then used for the execution of the function. Expression1 is a compulsory value while expression2 is optional in nature. The output of the TIMESTAMP function is the value of the TIMESTAMP datatype which varies depending on parameters passed to it. The syntax of the TIMESTAMP function is as shown below – However, we can have different types of formats for timestamps that are supported by DB2 and some of which also allow us to store the timezone-related information in the field. Name of the column TIMESTAMP which mostly stores the value of date and time in yyyy-mm-dd-hh.mm.ss Format. The syntax of TIMESTAMP datatype is as shown below – An additional optional temporal parameter for storing and specifying the time zone of that place where the data is being recorded. There is one more thing called fractional seconds which can be stored to maintain an accurate and precise value of time. The TIMESTAMP datatype helps us to store date as well as time and contains a total of seven different parts stored in it which are year, month, and day for storing date and hour, minute, and seconds to store the time. In this article, we will study the syntax and usage of TIMESTAMP datatype and function in DB2 along with the examples. In order to store these values, we can make use of timestamp data type in DB2. It is required to store the date and time as well as other information such as timestamp for various transactions that are happened in real-time events such as sales time and date in stores for every customer, date and time of multiple flights, buses, and trains facility and many other. DB2 TIMESTAMP is also the datatype available in DB2 Database Management System provided by IBM which helps to store the temporal values in the database. The function is used for retrieving the timestamp value depending on the pair of parameter values that is supplied to it. Please leave a comment if you have any questions or feedback.DB2 TIMESTAMP is also a function provided by IBM as well as the data type used for storing temporal values. *Timestamps takes the default format if EUR or USA is specified. The four setting values are as follows: Format hours, followed by a colon, minutes, followed by a space and AM or PM. In the expression 'char(time(col2), usa)', the time() function obtains the time portion of the timestamp the char() function with the 'usa' argument tells DB2 to format the time using the US standard, i.e. 2 digit month, 2 digit day, 4 digit year separated by /. In the expression 'char(date(col2), usa)', the date() function obtains the date portion (year, month, and day) of the timestamp the char() function with the 'usa' argument tells DB2 to format the date using the USA standard, i.e. You can use a combination of built-in functions to get the desired result just concatenate the different parts together to get the format you want.Something like this, assuming the column containing the timestamp is called col2: Product is installed at "C:\PROGRA~1\IBM\SQLLIB~1" with DB2 Copy NameĬ:\Program Files\IBM\SQLLIB\BIN>db2 connect to trymeĬ:\Program Files\IBM\SQLLIB\bnd>db2 create table tryme(col1 int, col2 timestamp)"ĭB20000I The SQL command completed successfully.Ĭ:\Program Files\IBM\SQLLIB\bnd>db2 "insert into tryme values(1, current timestamp)"Ĭ:\Program Files\IBM\SQLLIB\bnd>db2 "select * from tryme"Ĭ:\Program Files\IBM\SQLLIB\bnd>db2 "select char (date(col2),usa) from tryme"Ĭ:\Program Files\IBM\SQLLIB\bnd>db2 "select char (date(col2),usa),char(time(col2),usa) usa from tryme" Uses "64" bits and DB2 code release "SQL10057" with level identifier Here is an example to extract time and date in a certain format from a column declared as timestamp.Ĭ:\Program Files\IBM\SQLLIB_01\BIN>db2levelĭB21085I This instance or install (instance name, where applicable: "DB2_01")
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