Error Fetching From Cursor. Oracle Error Is Ora-01722 Invalid Number
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Ora 01722 Invalid Number Oracle Decode
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Ora-01722 Invalid Number Select
UNION UNION ALL UPDATE WHERE Oracle Advanced Oracle Cursors Oracle Exception Handling Oracle Foreign Keys Oracle Loops/Conditionals Oracle Transactions Oracle Triggers String/Char Functions Numeric/Math Functions Date/Time Functions Conversion Functions Analytic Functions Advanced Functions Oracle / PLSQL: ORA-01722 Learn the cause and how to resolve the ORA-01722 error message in Oracle. 01722. 00000 - "invalid number" Description When you encounter an ORA-01722 error, the following error message will appear: ORA-01722: invalid number Cause You executed a SQL statement that tried to convert a string to a number, but it was unsuccessful. Resolution The option(s) to resolve this Oracle error are: Option #1 Only numeric fields or character fields that contain numeric values can be used in arithmetic operations. Make sure that all expressions evaluate to numbers. Option #2 If you are adding or subtracting from dates, make sure that you added/substracted a numeric value from the date. Share this page: Advertisement Back to top Home | About Us | Contact Us | Testimonials | Donate While using this site, you agree to have read and accepted our Terms of Service and Privacy Policy. We use advertisements to support this website and fund the development of new content. Copyright © 2003-2016 TechOnTheNet.com. All rights reserved.
17, 2012 - 9:21 am UTC Category: – Version: Latest Followup You Asked What is the error ORA-01722 and we said... ORA-1722 is Invalid number. We've attempted to either explicity or implicity convert a character string to a number and it is failing. This can happen
Ora-01722 Invalid Number Solution
for a number of reasons. It generally happens in SQL only (during a query) not in plsql
Ora-01722 Invalid Number To_char
(plsql throws a different exception for this error). You can see this error easily by: ops$tkyte@8i> select to_number('abc') from dual; select to_number('abc') from dual ora-01722 invalid number to_number * ERROR at line 1: ORA-01722: invalid number This error seems to creep into queries in the strangest ways. A change in the order of a predicate can make it come and go -- depending on the order of evaluation in https://www.techonthenet.com/oracle/errors/ora01722.php the predicate. Consider this example: ops$tkyte@8i> create table t ( x int, y varchar2(25) ); Table created. ops$tkyte@8i> ops$tkyte@8i> insert into t values ( 1, 'abc' ); 1 row created. ops$tkyte@8i> insert into t values ( 2, '123' ); 1 row created. ops$tkyte@8i> ops$tkyte@8i> ops$tkyte@8i> select * from t where y > 100 and x = 2; X Y ---------- ------------------------- 2 123 ops$tkyte@8i> select * from t where x = 2 and y > 100; select * from t where https://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:45012348053 x = 2 and y > 100 * ERROR at line 1: ORA-01722: invalid number The first query worked since we *tend* to evaluate queries from the bottom up. We evaluated the x=2 part first and never tried to do 'abc' > 100. In the second query, the y>100 was evaluated first. Y was promoted to a number and then compared to 100. 'abc' could not be converted so ORA-1722. The only general purpose solution is to always compare like types to like types. You should either convert the column Y entirely to numbers (clean the data) or use a character string comparision (which changes the meaning of the predicate -- y > 100 is very different from y > '100' ) Reviews Write a Review ORa-01722 March 27, 2001 - 2:30 pm UTC Reviewer: Tom Petrella from Melville, NY I was getting this error and it was driving me nuts because I know everything was syntactically correct and there were no invalid numbers. Be rearranging the order of the where clause i got it to work. Thanks ! Is there a surefire way to avoid this? July 11, 2002 - 10:35 am UTC Reviewer: Adrian from Exeter England Apart from the obvious method, (i.e. Always compare like data-types), is there a sure-fire way to avoid this sort of problem happening? If I have a domain table cg_ref_codes with fields domain, low_value, high_value, abbreviation, meaning (all varchar2). If further some of my
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http://www.dba-oracle.com/sf_ora_01722_invalid_number.htm ORA-01722: invalid number tips Oracle Error Tips by Burleson Consulting Oracle docs offer https://oraculix.com/2013/07/01/ora-01722-invalid-number-over-and-over-again/ this information regarding Oracle ORA-01722: ORA-01722 invalid number Cause: The attempted conversion of a character string to a number failed because the character string was not a valid numeric literal. Only numeric fields or character fields containing numeric data may be used in arithmetic functions or expressions. Only numeric fields may be added to or subtracted from dates. invalid number Action: Check the character strings in the function or expression. Check that they contain only numbers, a sign, a decimal point, and the character "E" or "e" and retry the operation. Jonathan Gennick provides information regarding Oracle ORA-01722 in conjunction with subqueries and Oracle Optimizer. To exhibit how Oracle ORA-01722 is often thrown, this query is given as an example: SELECT * FROM ( SELECT FLAG, TO_NUMBER ( NUM ) NUM FROM SUBTEST WHERE FLAG 01722 invalid number = 'N' ) WHERE NUM > 0 ; Here, from in the FROM clause of a query, the user is attempting to have a subquery of the original query, which is causing Oracle ORA-01722 to be thrown. The Oracle ORA-01722 error is thrown with the failure because of the outer query. This is because it is trying to test the NUM > 0 condition first because it is assumed it might be more useful. Gennick goes on to show that Oracle ORA-01722 is thrown because the Oracle optimizer has re-written the query as: SELECT FLAG, TO_NUMBER ( NUM ) NUM FROM SUBTEST WHERE TO_NUMBER ( NUM ) > 0 AND FLAG = 'N' ; This throws Oracle ORA-01722 because the re-written query causes the system to convert a non-numeric NUM value of the WHERE clause into numbers. OraFaq also has notes on Oracle ORA-01722. Here, it is explained that Oracle ORA-01722 is thrown because a particular string was not able o be converted into a specific valid number when a user attempted to convert a character string. There are several possible resolutions to Oracle ORA-01722 in this context: If you are attempting an " INSERT INTO ... VALUES (...) " you need to find out which data item is invalid If you are trying to supply the values in a sub query which is intended to