money.out

来自「postgresql8.3.4源码,开源数据库」· OUT 代码 · 共 188 行

--
-- MONEY
--
CREATE TABLE money_data (m money);
INSERT INTO money_data VALUES ('123');
SELECT * FROM money_data;
    m    
---------
 $123.00
(1 row)

SELECT m + '123' FROM money_data;
 ?column? 
----------
  $246.00
(1 row)

SELECT m + '123.45' FROM money_data;
 ?column? 
----------
  $246.45
(1 row)

SELECT m - '123.45' FROM money_data;
 ?column? 
----------
   -$0.45
(1 row)

SELECT m * 2 FROM money_data;
 ?column? 
----------
  $246.00
(1 row)

SELECT m / 2 FROM money_data;
 ?column? 
----------
   $61.50
(1 row)

-- All true
SELECT m = '$123.00' FROM money_data;
 ?column? 
----------
 t
(1 row)

SELECT m != '$124.00' FROM money_data;
 ?column? 
----------
 t
(1 row)

SELECT m <= '$123.00' FROM money_data;
 ?column? 
----------
 t
(1 row)

SELECT m >= '$123.00' FROM money_data;
 ?column? 
----------
 t
(1 row)

SELECT m < '$124.00' FROM money_data;
 ?column? 
----------
 t
(1 row)

SELECT m > '$122.00' FROM money_data;
 ?column? 
----------
 t
(1 row)

-- All false
SELECT m = '$123.01' FROM money_data;
 ?column? 
----------
 f
(1 row)

SELECT m != '$123.00' FROM money_data;
 ?column? 
----------
 f
(1 row)

SELECT m <= '$122.99' FROM money_data;
 ?column? 
----------
 f
(1 row)

SELECT m >= '$123.01' FROM money_data;
 ?column? 
----------
 f
(1 row)

SELECT m > '$124.00' FROM money_data;
 ?column? 
----------
 f
(1 row)

SELECT m < '$122.00' FROM money_data;
 ?column? 
----------
 f
(1 row)

SELECT cashlarger(m, '$124.00') FROM money_data;
 cashlarger 
------------
    $124.00
(1 row)

SELECT cashsmaller(m, '$124.00') FROM money_data;
 cashsmaller 
-------------
     $123.00
(1 row)

SELECT cash_words(m) FROM money_data;
                   cash_words                    
-------------------------------------------------
 One hundred twenty three dollars and zero cents
(1 row)

SELECT cash_words(m + '1.23') FROM money_data;
                       cash_words                       
--------------------------------------------------------
 One hundred twenty four dollars and twenty three cents
(1 row)

DELETE FROM money_data;
INSERT INTO money_data VALUES ('$123.45');
SELECT * FROM money_data;
    m    
---------
 $123.45
(1 row)

DELETE FROM money_data;
INSERT INTO money_data VALUES ('$123.451');
SELECT * FROM money_data;
    m    
---------
 $123.45
(1 row)

DELETE FROM money_data;
INSERT INTO money_data VALUES ('$123.454');
SELECT * FROM money_data;
    m    
---------
 $123.45
(1 row)

DELETE FROM money_data;
INSERT INTO money_data VALUES ('$123.455');
SELECT * FROM money_data;
    m    
---------
 $123.46
(1 row)

DELETE FROM money_data;
INSERT INTO money_data VALUES ('$123.456');
SELECT * FROM money_data;
    m    
---------
 $123.46
(1 row)

DELETE FROM money_data;
INSERT INTO money_data VALUES ('$123.459');
SELECT * FROM money_data;
    m    
---------
 $123.46
(1 row)