Once I was doing an integration between two distinct banks: MySQL and PostgreSQL. During work it was very common for
Continue reading »Category: Oracle Database
Here’s how to use the Oracle AVG function
If you have the need to have the average value of an expression in a query, the right thing is
Continue reading »How to use the Oracle NVL function
Have you ever seen yourself in a situation where you end up building a giant query, doing UNIONs with other
Continue reading »Here’s how to use the UNION and UNION ALL operators.
You may have already had the need to join / combine the result of two or more queries into the
Continue reading »Oracle INTERSECT Operator
If you have the need to compare results between two or more queries in the database, there is an ORACLE
Continue reading »Function Oracle TO_CHAR
If you need to transform a DATE or NUMBER into a STRING, the function that ORACLE provides is TO_CHAR. Much like
Continue reading »Function Oracle TO_DATE
Do you know when you are querying the database and need to transform a STRING into a DATA format? Well,
Continue reading »How to identify which sessions are active in ORACLE and how to delete them.
Continuing the ORACLE DATABASE session I will post another quick but functional balcony, which is a query which shows you
Continue reading »Here’s how to find duplicate records in your table
Keeping the objective of making the Oracle Database as a repository of information that can help us with our demands,
Continue reading »Let’s talk about SEQUENCES
Hello everyone, I will be registering here in the blog a series of resources that are used in our daily
Continue reading »