WebMay 18, 2003 · Daniel Gehrke wrote: > I am porting from MS SQL 7.0 to PostgreSQL. In one Stored Procedure the > function "isDate" is used. IsDate determines, whether the input string is a
How to check if a date is a valid date in Oracle? - Oracle Forums
WebNov 1, 2011 · One way to do it is check this it looks @ the Definition of the tables. select COLNAME , TYPENAME from syscat.columns where tabName= 'TABLES' and tabSchema = ' ?' WebSimilar to Timo Kähkönen's answer, I've used TIMESTAMPDIFF to determine if a date is valid like ISDATE does. I use the same date in both date parameters. It returns zero if it a date, … jayco eagle for sale craigslist
PostgreSQL Date Functions
WebThe following page shows the most commonly used PostgreSQL date functions that allow you to manipulate date and time values effectively. Calculate ages between two timestamps and returns a “symbolic” result which uses years and months. Calculate ages between current date (at midnight) and a timestamp and returns a “symbolic” result ... WebMay 6, 2003 · The to_date function returns an error, if you try to convert a string, that is not a valid date. You can use this behavior to construct a function like: create or replace function isdate (p_inDate date, p_format varchar2) return number. as. v_dummy date; begin. select to_date (p_inDate,p_format) into v_dummy from dual; return 0; WebSep 3, 2024 · 1 Answer. If the ISDATE-like expression needs to be executed, I would use the Create Base View From Query Option which allows Denodo to to create base views on top of JDBC data sources. I would also suggest developing a custom function that invokes the function in the JDBC data source side. Here you can find more details: Developing Custom … jayco eagle fifth wheel 317rlok