jva

jva has asked 6 questions and find answers to 10 problems.

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Oracle, Ruby

jva questions

Is there a nvl() function in Ruby or do I have to write it myself?

jva answers

How to avoid PG::NumericValueOutOfRange when using sum function
How to do WHERE-CLAUSE in hierarchical query in Oracle
Determine the size of a SQL result set in KB
Query performance difference pl/sql forall insert and plain SQL insert
Why is PLSQL slower than SQL*Plus
Algorithm to take the union of rectangles and to see if the union is still a rectangle
Is there something like "if not exist create sequence ..." in Oracle SQL?
My Oracle query alters between very short and very long execution times. What can cause this?