pá 30. 8. 2019 v 12:48 odesílatel stan <st...@panix.com> napsal: > I have created a function (PLSQL) that does a complex select with joins on > various > tables and views, and returns a table. > > In the resultant table, I have raw data, and adjusted data. The adjusted > data i > all adjusted by a common factor, which is calculated in the select. > Presently, I > calculate this same adjustment factor several times in the select. > > Is there a way to reference this value, multiple times, once it is > calculated? Or > would I have to create a 2nd select that calculates this adjustment > factor, and > stores it in a PLSQL variable< and if I do that, can I reference this > stored value > in the select? >
you can use custom configuration values like global variables https://wiki.postgresql.org/wiki/Variable_Design#PostgreSQL_User-Defined_GUCS Regards Pavel Stehule > > -- > "They that would give up essential liberty for temporary safety deserve > neither liberty nor safety." > -- Benjamin Franklin > > >
