Oracle sorting error ORA-01722: Invalid Number Processing

Source: Internet
Author: User
Oracle sorting error ldquo; ORA-01722: Invalid Number rdquo; Processing

Oracle sorting error ldquo; ORA-01722: Invalid Number rdquo; Processing

Problem:

A table name tab, there is a character type font needs numerical size sorting, but the direct use of to_number, cast and other means are reported ORA-01722: Invalid Number

Solution:

Select t. xzjg from tab t

Order by to_number (translate (t. xzjg, '192. '| t. xzjg, '192.') asc nulls last

-- Sort by value and sort the null value to the end

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