Dynamic Pivot with Polymorphic Table Function?
LiveSQL is great place to start playing with new features. It provides a couple of very helpful demo scripts explaining how polymorphic table functions work. There I found a new script few days ago which uses PTF for dynamic pivot! WOW! According to my subjective…
Polymorphic Table Functions (PTF), Part 4 – Table Semantic PTF
In the first three parts of the series we have seen how a PTF basically works, but we have focused on row-semantic PTF only. In this part we’ll look at the table semantic PTF. As a reminder, the main difference to row-semantic PTF is that…
Polymorphic Table Functions (PTF) , Part 3 – Row Replication
In the third part of the PTF-series we learn how a PTF can change the cardinality of the input data flow: return more or less rows as in the input. We’ll use the same simple table as in the part 2 and our new task…
Polymorphic Table Functions (PTF) , Part 2 – More Basics With Some Deep-Dive
In the first part of PTF series we went through a very basic example removing some columns and adding a new column with a constant value. Starting from the same example we’ll do something more meaningful in the second part. How about concatenating the values…
Polymorphic Table Functions (PTF) – Tinkering with Rowsets
Writing the second „basics“ post on PTF I discovered, that there were much more details worth mentioning, than it would be acceptable for a „basics“ post and would blow it up anyway 😉 So I decided to to separate the tests and finding in this…
Polymorphic Table Functions (PTF) , Part 1 – Basics
I have already posted some examples on Polymorphic Table Functions in Oracle 18c in the last months. I quickly realized how difficult it is to explain completely new feature using advanced examples and wanted to write a series of posts starting from very basics. Now…