String Functions Useful for smart SQL Queries

You can become smart when you write complex SQL query. You will get better pay when you write Quickly. You will be appreciated when you use built-in string functions. Today my topic is the same, that these ideas make you perfect in using String functions.

SQL String functions..

  1. Length Function
  2. TRIM functions
  3. Concatenate function
  4. Trailining Function
  5. CHAR function
  6. LPAD
  7. RPAD
  8. Soundex

How to use SQL string functions..


Select LENGTH (first_name) from my_employee;

The above query counts the first_name all characters that including spaces.


Explained with examples about TRIM functions.

3. Concatenate

Select first_name || last_name from my_employee;

4. Trailing Functions

Select Trim (trailing ‘y’ from first_name) from my_employee;

Trailining is a case sensitive.

5. Soundex

Select Soundex(first_name) from my_employee;

The above example converts ‘Srinimf’ into a Alpha-numeric value.

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Author: Srini

Experienced software developer. Skills in Development, Coding, Testing and Debugging. Good Data analytic skills (Data Warehousing and BI). Also skills in Mainframe.