Oracle中将数字转化成字符串

王朝oracle·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

CREATE OR REPLACE FUNCTION to_Words (

m_amount_in IN NUMBER,

m_first_para IN VARCHAR2 := 'Dollars',

m_second_para IN VARCHAR2 := 'Cents'

)

RETURN VARCHAR2

AS

m_amount NUMBER := m_amount_in;

word_stringVARCHAR2(1000);

lower_number NUMBER;

lower_strVARCHAR2(50);

loop_var NUMBER := 1;

/* Function declarartion to convert into string */

FUNCTION to_string (m_val_in NUMBER)

RETURN CHAR

IS

BEGIN

IF m_val_in 0

THEN

RETURN(INITCAP (TO_CHAR (TO_DATE (m_val_in, 'SSSSS'), 'SSSSSSP')));

ELSE

RETURN('');

END IF;

END;

/* End of Function */

BEGIN

/*--------------place the parameters at required places --------------*/

lower_number :=(m_amount MOD 1) * 100;

/* Check for lower denominations not exceeding two digits */

IF length(lower_number)

THEN

IF m_amount = 1 and lower_number 0

THEN lower_str :=

' '

m_first_para

' & '

LOWER (to_string (lower_number))

' '

m_second_para;

ELSIF m_amount 0

THEN lower_str :=

LOWER (to_string (lower_number))

' '

m_second_para;

ELSIF m_amount = 1 and lower_number = 0

THEN lower_str := ' ' m_first_para;

END IF;

ELSE

word_string := 'Invalid lower denomination !!' ;

RETURN(word_string);

END IF;

/*---------------- End of placing paramters-------------------------*/

WHILE loop_var = 1

LOOP

IF m_amount 0

AND m_amount

THEN

word_string :=

word_string

(INITCAP (to_string (FLOOR (m_amount))) lower_str);

loop_var := 0;

ELSIF m_amount 1000

AND m_amount

THEN

word_string :=

word_string

(INITCAP (to_string (FLOOR (m_amount / 1000)))

' Thousand '

to_string (FLOOR (m_amount MOD 1000))

lower_str

);

loop_var := 0;

ELSIF m_amount = 1000000

AND m_amount

THEN

word_string :=

word_string

INITCAP (to_string (FLOOR (m_amount / 1000000))) ' Million ';

m_amount := FLOOR (m_amount MOD 1000000);

IF m_amount = 0

THEN

loop_var := 0;

word_string := word_string lower_str;

END IF;

ELSIF m_amount = 1000000000

AND m_amount

THEN

word_string :=

INITCAP (

to_string (FLOOR (m_amount / 1000000000))) ' Billion ';

m_amount := FLOOR (m_amount MOD 1000000000);

IF m_amount = 0

THEN

loop_var := 0;

word_string := word_string lower_str;

END IF;

ELSIF m_amount = 0

THEN

word_string :=('Zero' lower_str);

loop_var := 0;

ELSE

word_string := 'This is beyond my scope !

!';

loop_var := 0;

END IF;

END LOOP;

RETURN(word_string);

END to_words;

/

 
 
 
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