The power of RDBMS depends on certain rules placed. These rules are called as integrity rules. Those are entity integrity and referential integrity.
The best example for Java stored procedure in DB2, also given java class path to write stored procedure and explained how to include it in the DB2 stored procedure standard block. Read more.
There are many of the occasions while writing SQL query you will come across this kind of scenario that you need in the result only digits. To achieve this explained with examples of DB2 function DIGITS. This is also called column function.
The well explained ideas in SQL query how you can include sequence is given here for your quick reference. These also useful for learning SQL.
The best way of writing SQL select query in SQL to avoid ambiguous column issue. Mostly people confuse with alias concept. This SQL query using alias in SELECT is beneficial to apply in your current project.
The syntax as given in Oracle built-in function, it is to convert lower case letters into upper case letters. The explanation given here is with examples. So that you use in your SQL program directly.
The main advantage of REPLACE function is SQL is to replace a string with another string. Read more.
How to modify SQL in best way is I have given in this post two options. You can choose appropriately.
Without Views there is no program in any project. Since there are lot of benefits with Views. Many programmers still have confusion how to create Views and why Views are required. This post clears all your questions with syntax for Views in SQL.
The best and mostly asked SQL query is converting rows into columns. This is a tricky question and it needs little intelligence to write effectively. This SQL query can be written in two steps with SQL functions either CASE or DECODE.