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Respected sir/mam,

When i enter a query "Select * from tab_name" then the query is execute successfully. But when i enter a "Select column_name from tab_name" then he shows a error invalid identifier. I cant understand y this problem is occur. So pls help me.

Tank u in advance.
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Prerak Patel 6-Feb-12 2:27am    
Can you specify the column name??!

1 solution

Check if your column name is valid.

Column names cannot be a reserved word, begin with a letter, be less than or equal to thirty characters, consist only of alphanumeric and the special characters ($_#).

http://www.dba-oracle.com/t_ora_00904_string_invalid_identifier.htm[^]
 
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