Count no. of characters and words in a string in PL/SQL

Prerequisite PL/SQL introduction
In PL/SQL code groups of commands are arranged within a block. A block group related declarations or statements. In declare part, we declare variables and between begin and end part, we perform the operations.

Given a string and the task is to count the number of characters and words in the given string.

Input: str = 'Geeks for geeks '
Output: Characters = 13 , Words = 3

Input: str = 'A Computer science portal'
Output: Characters = 22, Words = 4

Approach is to maintain two counter variables i.e. one for the characters and the other for words. Start traversing character one by one and increment the count and when there is a blank space then increment the count of words.
Below is the required implementation:





    -- Declare required variables 
    str       VARCHAR2(40) := 'Geeks for Geeks'
    noofchars NUMBER(4) := 0; 
    noofwords NUMBER(4) := 1; 
    s         CHAR
    FOR i IN 1..Length(str) LOOP 
        s := Substr(str, i, 1); 
        -- Count no. of characters 
        noofchars := noofchars + 1; 
        -- Count no. of words 
        IF s = ' ' THEN 
          noofwords := noofwords + 1; 
        END IF; 
    END LOOP; 
    dbms_output.Put_line('No. of characters:' 
    dbms_output.Put_line('No. of words: ' 
-- Program End  


Output :

No. of characters:15
No. of words: 3

My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using or mail your article to See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.

Article Tags :
Practice Tags :


Please write to us at to report any issue with the above content.