John D K

John D K

Oracle count null and not null values in column

In this article we will post two ways of counting

MySQL 5.7 count null and not null values in column

In this article we are going to present several ways

MySQL 5.7 show table columns 3 ways

1 Show MySQL table columns by describe The simplest and

MySQL 5.7 alter table add column

Adding new table is most common DDL operation that I&

MySQL convert column to row unpivot example

In this post simulate pivot and unpivot in MySQL: * Step

java pickle equivalent example

Pickle is very useful process of saving objects states as

Python pickle example cookies

The pickle module in Python implements an essential process for

Python convert object to JSON 3 examples

In this post 3 examples how to convert Python objects

java 8 convert string to int

If you have a string that contains only numbers and

Python pill draw text on image

If you need programmatically to add text on image you