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SQL Functions


SQL Functions


 The concat( ) function add two or more expression together. 

For add two or more expressions from column 


Syntax -

 Select Concat (expression1 , expression2 , expression3 , …………);

sql concat function


Syntax - 

select concat ( column_name1, ' ', column_name2, ' ' , ……….. ) from table_name as fullname; 

sql concat function



 The reverse function uses to write anything reversely. 


Syntax -

select reverse ( ‘write any string’ );


select reverse ( ‘write any string’ ) as reverse ;

sql reverse function


This is used to count the length of words, numbers etc. 


Syntax -

select char_length (‘ any character’);

sql character length function


This is used to write lower words to the upper word.


Syntax -

select upper (' any character ');

sql upper case function


This is used to write lower words to upper word. 


Syntax -

select lower (' any charecter ');

sql lower case function


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