????Oracle??????????????????????ж??????鷳?????ж?????????′???Oracle????????????????????????e??Oracle??????????PLSQL Developer???????????Oracle??????????? ?????????Oracle??????????????????instantclient-basic-win32??
??????????????????????????????????????NETWORK????NETWORK????????????У?ADMIN????ADMIN?????????????tnsnames.ora????tnsnames.ora?н??????????????????????????????????????????Щ????????￡?
????ORCL = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.101 )(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = orcl ) ) )
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?????????????????????????????????TNS_ADMIN????????????????instantclient-basic-win32·?????磺C:DEV_Softinstantclient_11_2
????????PLSQL Developer?и????Щ???????????δ????????′?PLSQL Developer????Tools-Preferences-Oracle-Connection????Oracle Home?????instantclient-basic-win32????·?????磺C:DEV_Softinstantclient_11_2????Oracle Library?????instantclient-basic-win32?μ?oci.dll????????磺C:DEV_Softinstantclient_11_2oci.dll
??????????????????????PLSQL Developer??????????????????????Database????????tnsnames.ora?????????????????????ORCL????
???????????oracle ???????????oracle??????????? ????plsql ?????????????