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Oracle PL/SQL/Conversion Functions/TO Number - История изменений
2026-04-04T12:01:16Z
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в 13:45, 26 мая 2010
2010-05-26T13:45:19Z
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Admin: 1 версия
2010-05-26T10:01:29Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>==Converting a Character Formatted as Currency to an Integer Value==<br />
<br />
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<br />
<br />
<!-- start source code --><br />
<br />
<source lang="sql"><br />
<br />
SQL><br />
SQL> DECLARE<br />
2 v_Convert_Number VARCHAR2(20) := "$119,252.75";<br />
3 v_Hold_Number NUMBER ;<br />
4 BEGIN<br />
5 v_Hold_Number := TO_Number(v_Convert_Number,"$999,999,999.99");<br />
6 DBMS_OUTPUT.PUT_LINE("The converted number is: " || v_Hold_Number);<br />
7 DBMS_OUTPUT.PUT_LINE("Your commission at 6% is: " ||<br />
8 (v_Hold_Number*.06));<br />
9 END;<br />
10 /<br />
The converted number is: 119252.75<br />
Your commission at 6% is: 7155.165<br />
PL/SQL procedure successfully completed.<br />
SQL><br />
SQL> --<br />
<br />
</source><br />
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<br />
==Converting a Character to an Integer Value==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="sql"><br />
<br />
SQL><br />
SQL> DECLARE<br />
2 v_Convert_Number VARCHAR2(20) := "1999";<br />
3 v_Hold_Number NUMBER ;<br />
4 BEGIN<br />
5 v_Hold_Number := TO_Number(v_Convert_Number,"9999");<br />
6 DBMS_OUTPUT.PUT_LINE("The converted number is: " || v_Hold_Number);<br />
7 DBMS_OUTPUT.PUT_LINE("The converted number plus 10 is: " ||<br />
8 (v_Hold_Number+10));<br />
9 END;<br />
10 /<br />
The converted number is: 1999<br />
The converted number plus 10 is: 2009<br />
PL/SQL procedure successfully completed.<br />
SQL><br />
SQL> --<br />
<br />
</source><br />
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<br />
==Converting VARCHAR2 Percentage Data to a Decimal Equivalent==<br />
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<br />
<br />
<!-- start source code --><br />
<br />
<source lang="sql"><br />
<br />
SQL><br />
SQL> DECLARE<br />
2 v_Convert_Number VARCHAR2(20) := "33.33";<br />
3 v_Hold_Number NUMBER ;<br />
4 BEGIN<br />
5 v_Hold_Number := TO_Number(v_Convert_Number,"999.999999");<br />
6 DBMS_OUTPUT.PUT_LINE("The converted number is: " || v_Hold_Number);<br />
7 DBMS_OUTPUT.PUT_LINE("Your decimal equivalent is: " ||<br />
8 (v_Hold_Number/100));<br />
9 END;<br />
10 /<br />
The converted number is: 33.33<br />
Your decimal equivalent is: .3333<br />
PL/SQL procedure successfully completed.<br />
SQL><br />
SQL><br />
SQL> --<br />
<br />
</source><br />
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<br />
<br />
==Errors with the Format Mask==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="sql"><br />
<br />
SQL><br />
SQL> DECLARE<br />
2 v_Convert_Number VARCHAR2(20) := "$119,252.75";<br />
3 v_Hold_Number NUMBER ;<br />
4 BEGIN<br />
5 v_Hold_Number := TO_Number(v_Convert_Number,"$99,999.99");<br />
6 DBMS_OUTPUT.PUT_LINE("The converted number is: " || v_Hold_Number);<br />
7 DBMS_OUTPUT.PUT_LINE("Your commission at 6% is: " ||<br />
8 (v_Hold_Number*.06));<br />
9 END;<br />
10 /<br />
DECLARE<br />
*<br />
ERROR at line 1:<br />
ORA-06502: PL/SQL: numeric or value error<br />
ORA-06512: at line 5<br />
<br />
SQL><br />
SQL><br />
SQL> --<br />
<br />
</source><br />
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<br />
==to_number("123")==<br />
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<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="sql"><br />
<br />
SQL><br />
SQL><br />
SQL> select 123<br />
2 , to_char(123)<br />
3 , to_char(123,"$09999.99")<br />
4 , to_number("123")<br />
5 from dual;<br />
123 TO_ TO_CHAR(12 TO_NUMBER("123")<br />
---------- --- ---------- ----------------<br />
123 123 $00123.00 123<br />
SQL><br />
<br />
</source></div>
Admin