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oracle - SQL error "ORA-01722: invalid number"

A very easy one for someone, The following insert is giving me the

ORA-01722: invalid number

why?

INSERT INTO CUSTOMER VALUES (1,'MALADY','Claire','27 Smith St Caulfield','0419 853 694');
INSERT INTO CUSTOMER VALUES (2,'GIBSON','Jake','27 Smith St Caulfield','0415 713 598');
INSERT INTO CUSTOMER VALUES (3,'LUU','Barry','5  Jones St Malvern','0413 591 341');
INSERT INTO CUSTOMER VALUES (4,'JONES','Michael','7  Smith St Caulfield','0419 853 694');
INSERT INTO CUSTOMER VALUES (5,'MALADY','Betty','27 Smith St Knox','0418 418 347');
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An ORA-01722 error occurs when an attempt is made to convert a character string into a number, and the string cannot be converted into a number.

Without seeing your table definition, it looks like you're trying to convert the numeric sequence at the end of your values list to a number, and the spaces that delimit it are throwing this error. But based on the information you've given us, it could be happening on any field (other than the first one).


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