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This article will explain in detail what are the case conversion functions in Oracle. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Case conversion function LOWER

The LOWER function replaces uppercase characters in a string with lowercase. Grammar: LOWER (s).

Select lower (100mm 100), lower ('SQL'), lower (sysdate) from dual

UPPER

The UPPER function replaces lowercase characters in a string with uppercase. Grammar: UPPER (s).

Select upper ('sql') from dual

INITCAP

The INITCAP function converts a string to uppercase. The first letter of each word in the string is converted to uppercase, and the remaining letters of each word are converted to lowercase. Words are separated by spaces or underscores, but some characters (such as percentage sign (%), exclamation point (!) Or the dollar sign ($) is also a valid word separator. Punctuation marks and special characters are also valid word separators. Syntax: INITCAP (s)

Select initcap ('initcap or init_cat or init%cap') from dual

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