Oracle's ora-00972:identifier is too long

First, preface

Today, in the program's log, this error occurred, searching the web to find that Oracle's object name is up to 30 characters, not more than 30, and my error SQL is:

"Select*fromwhere<= to_date ('2016-05-28 09:51:58  'yyyy-mm-dd HH24:mi:ss') "

Second, the reasons for analysis

Carefully read this SQL even if it did not find that the schema object name length is greater than 30, and finally can only debug the program, found that because the SQL statement is read from the configuration file, and read out not to eliminate the operation of both sides of the quotation marks, resulting in this error. So record it.

The correct statement should be:

Select *  from where <= to_date ('2016-05-28 09:51:58'yyyy-mm-dd HH24:mi:ss ')

Oracle's ora-00972:identifier is too long