Oracle: SQL query that returns rows with only numeric values

Question

I have a field (column in Oracle) called X that has values like \"a1b2c3\", \"abc\", \"1ab\", \"123\", \"156\"

how do I write an sql query that returns me only the X

Answer 1

You can use following command -

LENGTH(TRIM(TRANSLATE(string1, '+-.0123456789', '')))

This will return NULL if your string1 is Numeric

your query would be -

select * from tablename 
where LENGTH(TRIM(TRANSLATE(X, '+-.0123456789', ''))) is null