(2010-07-23)ORACLE的lpad函数、rpad函数用法

ORACLE的lpad函数、rpad函数用法

语法：select lpad('12345678',1,'0') from dual;

返回字符串‘12345678’的从左边长度为1的字符串，如果不够，左边补‘0’

语法：select rpad('12345678',1,'0') from dual; 

返回字符串‘12345678’的从左边长度为1的字符串，如果不够，右边补‘0’

select rpad('12345678',1,0) from dual;

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1

select lpad('12345678',1,0) from dual;

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1

select rpad('12345678',10,0) from dual;

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1234567800

select lpad('12345678',10,0) from dual;

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0012345678