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TNS:could not resolve the connect identifier specified
Backtrace message unwound by exceptions
invalid identifier
PL/SQL compilation error
internal error
missing expression
table or view does not exist
end-of-file on communication channel
TNS:listener unknown in connect descriptor
insufficient privileges
PL/SQL: numeric or value error string
TNS:protocol adapter error
ORACLE not available
target host or object does not exist
invalid number
unable to allocate string bytes of shared memory
resource busy and acquire with NOWAIT specified
error occurred at recursive SQL level string
ORACLE initialization or shutdown in progress
archiver error. Connect internal only, until freed
snapshot too old
unable to extend temp segment by string in tablespace
Credential retrieval failed
missing or invalid option
invalid username/password; logon denied
unable to create INITIAL extent for segment
out of process memory when trying to allocate string bytes
shared memory realm does not exist
cannot insert NULL
TNS:unable to connect to destination
remote database not found ora-02019
exception encountered: core dump
inconsistent datatypes
no data found
TNS:operation timed out
PL/SQL: could not find program
existing state of packages has been discarded
maximum number of processes exceeded
error signaled in parallel query server
ORACLE instance terminated. Disconnection forced
TNS:packet writer failure
see ORA-12699
missing right parenthesis
name is already used by an existing object
cannot identify/lock data file
invalid file operation
quoted string not properly terminated

Database programming standards

deen dayal

2004-06-02

Replies:
Hi all,

We are in the process of preparation of a RFP for a big project; it is
going to be developed in J2EE, do not know which app server we are going
to use ( probably SUN Iplanet server ), Oracle 9i is the back end.

I am looking for some database programming standards to be written up in
RFP so that we maintenance team can reduce the amount of mess to deal
with after vendor leaves.

So far we do not have any J2EE applications in our shop, so do not know
what kind of a beast it is.

Here is the list of problems I heard from others, do not know how far
they are true:

1) Some Java programs do not close open cursors.

2) On the fly SQLs ( no bind variables ) and each SQL is new for
database causing scalability problems.

3) Applications do not typically make use stored procedures/packages and
all the SQL are dumped into one huge database class file


If anybody already wrote a paper or know some source of these standards,
please forward. Any help in the regard is appreciated.


Thanks for the help

Deen

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