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sql - ORA-00904: invalid identifier - Stack Overflow More informations about your ERROR ORA-00904: string: invalid identifier Cause: The column name entered is either missing or invalid Action: Enter a valid column name A valid column name must begin with a letter, be less than or equal to 30 characters, and consist of only alphanumeric characters and the special characters $, _, and #
sql - ORA-12560: TNS:protocol adaptor error - Stack Overflow -2 In my case, (ORA-12560: TNS protocol adapter error)Issue cause of database connection issue like database, user name and password Once you got the issue Initially you have to check connection details, after check the oracle service and further more
ORA-01403: no data found for Select into - Stack Overflow I am getting ORA-01403: no data found exception for the following query What are the possibilities of this error? SELECT trim (name) INTO fullname FROM ( SELECT n name FROM directory
ORA-12170: TNS:Connect timeout occurred - Stack Overflow I was trying to connect to the database here in my laptop using Oracle Toad but I kept on having this error: ORA-12170: TNS:Connect timeout occurred What are the possible reasons why I kept on ha
ORA-32795: cannot insert into a generated always identity column One of the columns in your target table (leaves_approval) contains an identity column that was defined as Generated always Identity columns can be created in 2 modes - Generated always, that cannot be assigned and Generated by default that can be assigned