![db2 timeslice timestamp sql db2 timeslice timestamp sql](https://image.slidesharecdn.com/day2-090904114818-phpapp02/95/sqlpl-and-db2-objects-5-638.jpg)
These are not the only date-conversion methods. Set ord.DueDate = varchar_format (current date + 5 days, 'YYYYMMDD')Īll three queries set the due date to five days after the current date. Where ord.OrderNbr in (select OrderNbr from order01) ĭec(varchar_format (current date + 5 days, 'YYYYMMDD'),8) - 19000000 packed- or zoned-decimal, 8 digitsĭec(varchar_format (current date + 5 days, 'YYYYMMDD'),8) Contains the null value if there is no active SQL statement. Here are three forms of the SQL we need, depending on how due date is defined. The timestamp of the execution start for an active SQL statement. The order numbers are stored in a table called ORDER01. Let’s say that the users are not allowed to adjust due dates themselves, but instead have a way to indicate the orders for which due date needs to be adjusted. See Michael Sansoterra’s article for more information. Like TIMESTAMP_FORMAT, VARCHAR_FORMAT accepts two arguments - the data to be converted and a formatting string. TIMESTAMP_FORMAT has a complement: VARCHAR_FORMAT. We need to convert dates, times, or timestamps to other data types. Sometimes we need to convert in the other direction. Where timestamp_format (DueDate, 'YYYYMMDD') between Shops that use eight-byte character dates use an even simpler query, since the date data is already in character format. TIMESTAMP_FORMAT does not have a way to indicate a one-digit century indicator. Where timestamp_format (char(DueDate+19000000), 'YYYYMMDD') betweenĪdding 19 million to the date converts it to the YYYYMMDD format of the previous example. Some shops store dates in seven-digit packed-decimal columns. Since the due date is numeric, use the CHAR function to convert it to character data. For more information about TIMESTAMP_FORMAT, read Michael Sansoterra’s superb article about DB2 for i 6.1 enhancements.
![db2 timeslice timestamp sql db2 timeslice timestamp sql](https://www.tutorialgateway.org/wp-content/uploads/SQL-CURRENT_TIMESTAMP-Function-1.png)
A format string value of YYYYMMDD means that the date is stored as a four-digit year, a two-digit month, and a two-digit day. The TIMESTAMP_FORMAT function converts character data to a timestamp based on a pattern specified in a format string. Where timestamp_format (char(DueDate), 'YYYYMMDD') betweenĬurrent date and (current date + 30 days) Select all orders that are due within the next 30 days, but do not include past-due orders. To begin, consider first the case when due date is defined as an eight-digit packed- or zoned-decimal field. How due date is defined is all that matters. How order number is defined is irrelevant. For this illustration, we need to consider two columns only - order number and due date. Any type of order that has a due date column (field) will do. Sales orders, manufacturing orders, assembly orders, whatever. Let’s consider as an example a table (physical file) of orders. Second, the people whom we serve prefer to read dates and times in formats that they are accustomed to, and we can easily accommodate them. First, we can’t do date and time arithmetic with numeric and character fields. IBM i programmers need to convert date, time, and timestamp data from one format to another for at least two reasons. A conversation with a fellow attendee of the recent RPG & DB2 Summit made me realize that I had not written about certain SQL conversion methods. Since many, if not most, IBM i shops store dates and times in numeric and character fields, it behooves those of us who program those systems to understand all available date- and time-conversion tools. AM or PM can be in uppercase or lowercase and must be preceded by a single blank.Guru: More Date And Time Conversions Using SQL.The minute part can be omitted, for example, 1:00 PM is equivalent to 1 PM.If time literals use the USA format, they also conform to the following rules: If the USA format is not used and both minute and second are all zeros, the time literal can be the only hour such as 13 instead of 13:00:00.The second part of a time literal can be omitted.The leading zeros of the hour parts can be skipped, for example, 01:00:00 is the same as 1:00:00.Time literals cannot have leading blanks but can have trailing blanks.Time literals must conform to the following rules: Japanese industrial standard Christian era The first, second, and third bytes represent the hour, minute, and second respectively.ĭb2 stores time values in a special internal format and converts the time values to one of the following formats for the output: Format name Each byte consists of two packed decimal digits. Internally, DB2 uses three bytes to store a time value.
DB2 TIMESLICE TIMESTAMP SQL CODE
Code language: SQL (Structured Query Language) ( sql )