valid values for NLS

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462.Which view shows all valid values for the NLS_LANGUAGE, NLS_SORT, NLS_TERRITORY, and

NLS_CHARACTERSET parameters?

A. V$VALID_NLS_VALUES

B. NLS_VALID_VALUES

C. NLS_VALUE_OPTIONS

D. V$NLS_VALUE_OPTIONS

E. V$NLS_VALID_VALUES

Answer: E

答案解析：

参考：http://docs.oracle.com/cd/E11882_01/server.112/e40402/dynviews_2076.htm#REFRN30160

V$NLS_VALID_VALUES lists all valid values for NLS parameters.

v$nls_valid_values

 "PARAMETER","VALUE","ISDEPRECATED" 

LANGUAGE AMERICAN FALSE
LANGUAGE GERMAN FALSE
LANGUAGE FRENCH FALSE
LANGUAGE CANADIAN FRENCH FALSE
LANGUAGE SPANISH FALSE
LANGUAGE ITALIAN FALSE
LANGUAGE DUTCH FALSE
LANGUAGE SWEDISH FALSE
LANGUAGE NORWEGIAN FALSE
LANGUAGE DANISH FALSE
LANGUAGE FINNISH FALSE
LANGUAGE ICELANDIC FALSE
LANGUAGE GREEK FALSE
LANGUAGE PORTUGUESE FALSE
LANGUAGE TURKISH FALSE
LANGUAGE BRAZILIAN PORTUGUESE FALSE
LANGUAGE MEXICAN SPANISH FALSE
LANGUAGE RUSSIAN FALSE
LANGUAGE POLISH FALSE
LANGUAGE HUNGARIAN FALSE
LANGUAGE CZECH FALSE
LANGUAGE LITHUANIAN FALSE
LANGUAGE SLOVAK FALSE
LANGUAGE CATALAN FALSE
LANGUAGE BULGARIAN FALSE
LANGUAGE ROMANIAN FALSE
LANGUAGE SLOVENIAN FALSE
LANGUAGE HEBREW FALSE
LANGUAGE EGYPTIAN FALSE
LANGUAGE CROATIAN FALSE
LANGUAGE ARABIC FALSE
LANGUAGE THAI FALSE
LANGUAGE JAPANESE FALSE
LANGUAGE KOREAN FALSE
LANGUAGE SIMPLIFIED CHINESE FALSE
LANGUAGE TRADITIONAL CHINESE FALSE
LANGUAGE ENGLISH FALSE
LANGUAGE LATIN AMERICAN SPANISH FALSE
LANGUAGE UKRAINIAN FALSE
LANGUAGE ESTONIAN FALSE
LANGUAGE GERMAN DIN FALSE
LANGUAGE MALAY FALSE
LANGUAGE VIETNAMESE FALSE
LANGUAGE BENGALI TRUE
LANGUAGE LATVIAN FALSE
LANGUAGE INDONESIAN FALSE
LANGUAGE HINDI FALSE
LANGUAGE TAMIL FALSE
LANGUAGE KANNADA FALSE
LANGUAGE TELUGU FALSE
LANGUAGE ORIYA FALSE
LANGUAGE MALAYALAM FALSE
LANGUAGE ASSAMESE FALSE
LANGUAGE GUJARATI FALSE
LANGUAGE MARATHI FALSE
LANGUAGE PUNJABI FALSE
LANGUAGE BANGLA FALSE
LANGUAGE AZERBAIJANI FALSE
LANGUAGE MACEDONIAN FALSE
LANGUAGE CYRILLIC SERBIAN FALSE
LANGUAGE LATIN SERBIAN FALSE
LANGUAGE CYRILLIC UZBEK FALSE
LANGUAGE LATIN UZBEK FALSE
LANGUAGE CYRILLIC KAZAKH FALSE
LANGUAGE ALBANIAN FALSE
LANGUAGE BELARUSIAN FALSE
LANGUAGE IRISH FALSE
TERRITORY AMERICA FALSE
TERRITORY UNITED KINGDOM FALSE
TERRITORY GERMANY FALSE
TERRITORY FRANCE FALSE
TERRITORY CANADA FALSE
TERRITORY SPAIN FALSE
TERRITORY ITALY FALSE
TERRITORY THE NETHERLANDS FALSE
TERRITORY SWEDEN FALSE
TERRITORY NORWAY FALSE
TERRITORY DENMARK FALSE
TERRITORY FINLAND FALSE
TERRITORY ICELAND FALSE
TERRITORY GREECE FALSE
TERRITORY PORTUGAL FALSE
TERRITORY TURKEY FALSE
TERRITORY BRAZIL FALSE
TERRITORY MEXICO FALSE
TERRITORY CIS TRUE
TERRITORY CROATIA FALSE
TERRITORY POLAND FALSE
TERRITORY HUNGARY FALSE
TERRITORY CZECHOSLOVAKIA TRUE
TERRITORY LITHUANIA FALSE
TERRITORY ISRAEL FALSE
TERRITORY BULGARIA FALSE
TERRITORY ALGERIA FALSE
TERRITORY BAHRAIN FALSE
TERRITORY CATALONIA FALSE
TERRITORY EGYPT FALSE
TERRITORY IRAQ FALSE
TERRITORY JORDAN FALSE
TERRITORY KUWAIT FALSE
TERRITORY LEBANON FALSE
TERRITORY LIBYA FALSE
TERRITORY MOROCCO FALSE
TERRITORY MAURITANIA FALSE
TERRITORY OMAN FALSE
TERRITORY QATAR FALSE
TERRITORY ROMANIA FALSE
TERRITORY SAUDI ARABIA FALSE
TERRITORY SOMALIA FALSE
TERRITORY SYRIA FALSE
TERRITORY DJIBOUTI FALSE
TERRITORY SLOVENIA FALSE
TERRITORY TUNISIA FALSE
TERRITORY YEMEN FALSE
TERRITORY SUDAN FALSE
TERRITORY SWITZERLAND FALSE
TERRITORY AUSTRIA FALSE
TERRITORY UNITED ARAB EMIRATES FALSE
TERRITORY THAILAND FALSE
TERRITORY CHINA FALSE
TERRITORY HONG KONG FALSE
TERRITORY JAPAN FALSE
TERRITORY KOREA FALSE
TERRITORY TAIWAN FALSE
TERRITORY CZECH REPUBLIC FALSE
TERRITORY SLOVAKIA FALSE
TERRITORY UKRAINE FALSE
TERRITORY ESTONIA FALSE
TERRITORY MALAYSIA FALSE
TERRITORY BANGLADESH FALSE
TERRITORY LATVIA FALSE
TERRITORY VIETNAM FALSE
TERRITORY INDONESIA FALSE
TERRITORY CYPRUS FALSE
TERRITORY AUSTRALIA FALSE
TERRITORY KAZAKHSTAN FALSE
TERRITORY UZBEKISTAN FALSE
TERRITORY SINGAPORE FALSE
TERRITORY SOUTH AFRICA FALSE
TERRITORY IRELAND FALSE
TERRITORY BELGIUM FALSE
TERRITORY LUXEMBOURG FALSE
TERRITORY NEW ZEALAND FALSE
TERRITORY INDIA FALSE
TERRITORY CHILE FALSE
TERRITORY COLOMBIA FALSE
TERRITORY COSTA RICA FALSE
TERRITORY EL SALVADOR FALSE
TERRITORY GUATEMALA FALSE
TERRITORY NICARAGUA FALSE
TERRITORY PANAMA FALSE
TERRITORY PERU FALSE
TERRITORY PUERTO RICO FALSE
TERRITORY VENEZUELA FALSE
TERRITORY YUGOSLAVIA TRUE
TERRITORY MACEDONIA TRUE
TERRITORY RUSSIA FALSE
TERRITORY AZERBAIJAN FALSE
TERRITORY FYR MACEDONIA FALSE
TERRITORY SERBIA AND MONTENEGRO FALSE
TERRITORY ARGENTINA FALSE
TERRITORY ECUADOR FALSE
TERRITORY PHILIPPINES FALSE
TERRITORY ALBANIA FALSE
TERRITORY BELARUS FALSE
CHARACTERSET US7ASCII FALSE
CHARACTERSET WE8DEC FALSE
CHARACTERSET WE8HP FALSE
CHARACTERSET US8PC437 FALSE
CHARACTERSET WE8EBCDIC37 FALSE
CHARACTERSET WE8EBCDIC500 FALSE
CHARACTERSET WE8EBCDIC1140 FALSE
CHARACTERSET WE8EBCDIC285 FALSE
CHARACTERSET WE8EBCDIC1146 FALSE
CHARACTERSET WE8PC850 FALSE
CHARACTERSET D7DEC FALSE
CHARACTERSET F7DEC FALSE
CHARACTERSET S7DEC FALSE
CHARACTERSET E7DEC FALSE
CHARACTERSET SF7ASCII FALSE
CHARACTERSET NDK7DEC FALSE
CHARACTERSET I7DEC FALSE
CHARACTERSET NL7DEC FALSE
CHARACTERSET CH7DEC FALSE
CHARACTERSET YUG7ASCII FALSE
CHARACTERSET SF7DEC FALSE
CHARACTERSET TR7DEC FALSE
CHARACTERSET IW7IS960 FALSE
CHARACTERSET IN8ISCII FALSE
CHARACTERSET WE8EBCDIC1148 FALSE
CHARACTERSET WE8PC858 FALSE
CHARACTERSET WE8ISO8859P1 FALSE
CHARACTERSET EE8ISO8859P2 FALSE
CHARACTERSET SE8ISO8859P3 FALSE
CHARACTERSET NEE8ISO8859P4 FALSE
CHARACTERSET CL8ISO8859P5 FALSE
CHARACTERSET AR8ISO8859P6 FALSE
CHARACTERSET EL8ISO8859P7 FALSE
CHARACTERSET IW8ISO8859P8 FALSE
CHARACTERSET WE8ISO8859P9 FALSE
CHARACTERSET NE8ISO8859P10 FALSE
CHARACTERSET TH8TISASCII FALSE
CHARACTERSET TH8TISEBCDIC FALSE
CHARACTERSET BN8BSCII FALSE
CHARACTERSET VN8VN3 FALSE
CHARACTERSET VN8MSWIN1258 FALSE
CHARACTERSET WE8ISO8859P15 FALSE
CHARACTERSET BLT8ISO8859P13 FALSE
CHARACTERSET CEL8ISO8859P14 FALSE
CHARACTERSET CL8ISOIR111 FALSE
CHARACTERSET WE8NEXTSTEP FALSE
CHARACTERSET CL8KOI8U FALSE
CHARACTERSET AZ8ISO8859P9E FALSE
CHARACTERSET AR8ASMO708PLUS TRUE
CHARACTERSET AR8EBCDICX FALSE
CHARACTERSET AR8XBASIC TRUE
CHARACTERSET EL8DEC FALSE
CHARACTERSET TR8DEC FALSE
CHARACTERSET WE8EBCDIC37C FALSE
CHARACTERSET WE8EBCDIC500C FALSE
CHARACTERSET IW8EBCDIC424 FALSE
CHARACTERSET TR8EBCDIC1026 FALSE
CHARACTERSET WE8EBCDIC871 FALSE
CHARACTERSET WE8EBCDIC284 FALSE
CHARACTERSET WE8EBCDIC1047 FALSE
CHARACTERSET WE8EBCDIC1140C FALSE
CHARACTERSET WE8EBCDIC1145 FALSE
CHARACTERSET WE8EBCDIC1148C FALSE
CHARACTERSET WE8EBCDIC1047E FALSE
CHARACTERSET WE8EBCDIC924 FALSE
CHARACTERSET EEC8EUROASCI FALSE
CHARACTERSET EEC8EUROPA3 FALSE
CHARACTERSET LA8PASSPORT FALSE
CHARACTERSET BG8PC437S FALSE
CHARACTERSET EE8PC852 FALSE
CHARACTERSET RU8PC866 FALSE
CHARACTERSET RU8BESTA FALSE
CHARACTERSET IW8PC1507 FALSE
CHARACTERSET RU8PC855 FALSE
CHARACTERSET TR8PC857 FALSE
CHARACTERSET CL8MACCYRILLIC FALSE
CHARACTERSET CL8MACCYRILLICS FALSE
CHARACTERSET WE8PC860 FALSE
CHARACTERSET IS8PC861 FALSE
CHARACTERSET EE8MACCES FALSE
CHARACTERSET EE8MACCROATIANS FALSE
CHARACTERSET TR8MACTURKISHS FALSE
CHARACTERSET IS8MACICELANDICS FALSE
CHARACTERSET EL8MACGREEKS FALSE
CHARACTERSET IW8MACHEBREWS FALSE
CHARACTERSET EE8MSWIN1250 FALSE
CHARACTERSET CL8MSWIN1251 FALSE
CHARACTERSET ET8MSWIN923 FALSE
CHARACTERSET BG8MSWIN FALSE
CHARACTERSET EL8MSWIN1253 FALSE
CHARACTERSET IW8MSWIN1255 FALSE
CHARACTERSET LT8MSWIN921 FALSE
CHARACTERSET TR8MSWIN1254 FALSE
CHARACTERSET WE8MSWIN1252 FALSE
CHARACTERSET BLT8MSWIN1257 FALSE
CHARACTERSET D8EBCDIC273 FALSE
CHARACTERSET I8EBCDIC280 FALSE
CHARACTERSET DK8EBCDIC277 FALSE
CHARACTERSET S8EBCDIC278 FALSE
CHARACTERSET EE8EBCDIC870 FALSE
CHARACTERSET CL8EBCDIC1025 FALSE
CHARACTERSET F8EBCDIC297 FALSE
CHARACTERSET IW8EBCDIC1086 FALSE
CHARACTERSET CL8EBCDIC1025X FALSE
CHARACTERSET D8EBCDIC1141 FALSE
CHARACTERSET N8PC865 FALSE
CHARACTERSET BLT8CP921 FALSE
CHARACTERSET LV8PC1117 FALSE
CHARACTERSET LV8PC8LR FALSE
CHARACTERSET BLT8EBCDIC1112 FALSE
CHARACTERSET LV8RST104090 FALSE
CHARACTERSET CL8KOI8R FALSE
CHARACTERSET BLT8PC775 FALSE
CHARACTERSET DK8EBCDIC1142 FALSE
CHARACTERSET S8EBCDIC1143 FALSE
CHARACTERSET I8EBCDIC1144 FALSE
CHARACTERSET F7SIEMENS9780X FALSE
CHARACTERSET E7SIEMENS9780X FALSE
CHARACTERSET S7SIEMENS9780X FALSE
CHARACTERSET DK7SIEMENS9780X FALSE
CHARACTERSET N7SIEMENS9780X FALSE
CHARACTERSET I7SIEMENS9780X FALSE
CHARACTERSET D7SIEMENS9780X FALSE
CHARACTERSET F8EBCDIC1147 FALSE
CHARACTERSET WE8GCOS7 FALSE
CHARACTERSET EL8GCOS7 FALSE
CHARACTERSET US8BS2000 FALSE
CHARACTERSET D8BS2000 FALSE
CHARACTERSET F8BS2000 FALSE
CHARACTERSET E8BS2000 FALSE
CHARACTERSET DK8BS2000 FALSE
CHARACTERSET S8BS2000 FALSE
CHARACTERSET WE8BS2000E FALSE
CHARACTERSET WE8BS2000 FALSE
CHARACTERSET EE8BS2000 FALSE
CHARACTERSET CE8BS2000 FALSE
CHARACTERSET CL8BS2000 FALSE
CHARACTERSET WE8BS2000L5 FALSE
CHARACTERSET WE8DG FALSE
CHARACTERSET WE8NCR4970 FALSE
CHARACTERSET WE8ROMAN8 FALSE
CHARACTERSET EE8MACCE FALSE
CHARACTERSET EE8MACCROATIAN FALSE
CHARACTERSET TR8MACTURKISH FALSE
CHARACTERSET IS8MACICELANDIC FALSE
CHARACTERSET EL8MACGREEK FALSE
CHARACTERSET IW8MACHEBREW FALSE
CHARACTERSET US8ICL FALSE
CHARACTERSET WE8ICL FALSE
CHARACTERSET WE8ISOICLUK FALSE
CHARACTERSET EE8EBCDIC870C FALSE
CHARACTERSET EL8EBCDIC875S TRUE
CHARACTERSET TR8EBCDIC1026S FALSE
CHARACTERSET BLT8EBCDIC1112S FALSE
CHARACTERSET IW8EBCDIC424S FALSE
CHARACTERSET EE8EBCDIC870S FALSE
CHARACTERSET CL8EBCDIC1025S FALSE
CHARACTERSET TH8TISEBCDICS FALSE
CHARACTERSET AR8EBCDIC420S FALSE
CHARACTERSET CL8EBCDIC1025C FALSE
CHARACTERSET CL8EBCDIC1025R FALSE
CHARACTERSET EL8EBCDIC875R FALSE
CHARACTERSET CL8EBCDIC1158 FALSE
CHARACTERSET CL8EBCDIC1158R FALSE
CHARACTERSET EL8EBCDIC423R FALSE
CHARACTERSET WE8MACROMAN8 FALSE
CHARACTERSET WE8MACROMAN8S FALSE
CHARACTERSET TH8MACTHAI FALSE
CHARACTERSET TH8MACTHAIS FALSE
CHARACTERSET HU8CWI2 FALSE
CHARACTERSET EL8PC437S FALSE
CHARACTERSET EL8EBCDIC875 FALSE
CHARACTERSET EL8PC737 FALSE
CHARACTERSET LT8PC772 FALSE
CHARACTERSET LT8PC774 FALSE
CHARACTERSET EL8PC869 FALSE
CHARACTERSET EL8PC851 FALSE
CHARACTERSET CDN8PC863 FALSE
CHARACTERSET HU8ABMOD FALSE
CHARACTERSET AR8ASMO8X FALSE
CHARACTERSET AR8NAFITHA711T TRUE
CHARACTERSET AR8SAKHR707T TRUE
CHARACTERSET AR8MUSSAD768T TRUE
CHARACTERSET AR8ADOS710T TRUE
CHARACTERSET AR8ADOS720T TRUE
CHARACTERSET AR8APTEC715T TRUE
CHARACTERSET AR8NAFITHA721T TRUE
CHARACTERSET AR8HPARABIC8T TRUE
CHARACTERSET AR8NAFITHA711 FALSE
CHARACTERSET AR8SAKHR707 FALSE
CHARACTERSET AR8MUSSAD768 FALSE
CHARACTERSET AR8ADOS710 FALSE
CHARACTERSET AR8ADOS720 FALSE
CHARACTERSET AR8APTEC715 FALSE
CHARACTERSET AR8MSWIN1256 FALSE
CHARACTERSET AR8NAFITHA721 FALSE
CHARACTERSET AR8SAKHR706 FALSE
CHARACTERSET AR8ARABICMAC FALSE
CHARACTERSET AR8ARABICMACS FALSE
CHARACTERSET AR8ARABICMACT TRUE
CHARACTERSET LA8ISO6937 FALSE
CHARACTERSET JA16VMS FALSE
CHARACTERSET JA16EUC FALSE
CHARACTERSET JA16EUCYEN FALSE
CHARACTERSET JA16SJIS FALSE
CHARACTERSET JA16DBCS FALSE
CHARACTERSET JA16SJISYEN FALSE
CHARACTERSET JA16EBCDIC930 FALSE
CHARACTERSET JA16MACSJIS FALSE
CHARACTERSET JA16EUCTILDE FALSE
CHARACTERSET JA16SJISTILDE FALSE
CHARACTERSET KO16KSC5601 FALSE
CHARACTERSET KO16DBCS FALSE
CHARACTERSET KO16KSCCS FALSE
CHARACTERSET KO16MSWIN949 FALSE
CHARACTERSET ZHS16CGB231280 FALSE
CHARACTERSET ZHS16MACCGB231280 FALSE
CHARACTERSET ZHS16GBK FALSE
CHARACTERSET ZHS16DBCS FALSE
CHARACTERSET ZHS32GB18030 FALSE
CHARACTERSET ZHT32EUC FALSE
CHARACTERSET ZHT32SOPS FALSE
CHARACTERSET ZHT16DBT FALSE
CHARACTERSET ZHT32TRIS FALSE
CHARACTERSET ZHT16DBCS FALSE
CHARACTERSET ZHT16BIG5 FALSE
CHARACTERSET ZHT16CCDC FALSE
CHARACTERSET ZHT16MSWIN950 FALSE
CHARACTERSET ZHT16HKSCS FALSE
CHARACTERSET AL24UTFFSS TRUE
CHARACTERSET UTF8 FALSE
CHARACTERSET UTFE FALSE
CHARACTERSET AL32UTF8 FALSE
CHARACTERSET ZHT16HKSCS31 FALSE
CHARACTERSET JA16EUCFIXED TRUE
CHARACTERSET JA16SJISFIXED TRUE
CHARACTERSET JA16DBCSFIXED TRUE
CHARACTERSET KO16KSC5601FIXED TRUE
CHARACTERSET KO16DBCSFIXED TRUE
CHARACTERSET ZHS16CGB231280FIXED TRUE
CHARACTERSET ZHS16GBKFIXED TRUE
CHARACTERSET ZHS16DBCSFIXED TRUE
CHARACTERSET ZHT32EUCFIXED TRUE
CHARACTERSET ZHT32TRISFIXED TRUE
CHARACTERSET ZHT16DBCSFIXED TRUE
CHARACTERSET ZHT16BIG5FIXED TRUE
CHARACTERSET AL16UTF16 FALSE
SORT BINARY FALSE
SORT WEST_EUROPEAN FALSE
SORT XWEST_EUROPEAN FALSE
SORT GERMAN FALSE
SORT XGERMAN FALSE
SORT DANISH FALSE
SORT XDANISH FALSE
SORT SPANISH FALSE
SORT XSPANISH FALSE
SORT GERMAN_DIN FALSE
SORT XGERMAN_DIN FALSE
SORT FINNISH FALSE
SORT FRENCH FALSE
SORT NORWEGIAN FALSE
SORT SWEDISH FALSE
SORT ITALIAN FALSE
SORT ICELANDIC FALSE
SORT DUTCH FALSE
SORT XDUTCH FALSE
SORT SWISS FALSE
SORT XSWISS FALSE
SORT ARABIC FALSE
SORT HUNGARIAN FALSE
SORT XHUNGARIAN FALSE
SORT GREEK FALSE
SORT CZECH FALSE
SORT XCZECH FALSE
SORT POLISH FALSE
SORT SLOVAK FALSE
SORT XSLOVAK FALSE
SORT LATIN FALSE
SORT THAI_DICTIONARY TRUE
SORT THAI_TELEPHONE TRUE
SORT TURKISH FALSE
SORT XTURKISH FALSE
SORT RUSSIAN FALSE
SORT HEBREW FALSE
SORT LITHUANIAN FALSE
SORT CROATIAN FALSE
SORT XCROATIAN FALSE
SORT ROMANIAN FALSE
SORT BULGARIAN FALSE
SORT CATALAN FALSE
SORT XCATALAN FALSE
SORT SLOVENIAN FALSE
SORT XSLOVENIAN FALSE
SORT UKRAINIAN FALSE
SORT ESTONIAN FALSE
SORT ASCII7 FALSE
SORT JAPANESE TRUE
SORT MALAY FALSE
SORT PUNCTUATION FALSE
SORT XPUNCTUATION FALSE
SORT CANADIAN FRENCH TRUE
SORT VIETNAMESE FALSE
SORT EEC_EURO FALSE
SORT LATVIAN FALSE
SORT BENGALI FALSE
SORT XFRENCH FALSE
SORT INDONESIAN FALSE
SORT ARABIC_MATCH FALSE
SORT ARABIC_ABJ_SORT FALSE
SORT ARABIC_ABJ_MATCH FALSE
SORT EEC_EUROPA3 FALSE
SORT CZECH_PUNCTUATION FALSE
SORT XCZECH_PUNCTUATION FALSE
SORT UNICODE_BINARY FALSE
SORT EBCDIC FALSE
SORT GENERIC_BASELETTER FALSE
SORT AZERBAIJANI FALSE
SORT XAZERBAIJANI FALSE
SORT GENERIC_M FALSE
SORT SPANISH_M FALSE
SORT FRENCH_M FALSE
SORT THAI_M FALSE
SORT CANADIAN_M FALSE
SORT DANISH_M FALSE
SORT TCHINESE_RADICAL_M FALSE
SORT BIG5 FALSE
SORT HKSCS FALSE
SORT TCHINESE_STROKE_M FALSE
SORT SCHINESE_PINYIN_M FALSE
SORT SCHINESE_STROKE_M FALSE
SORT GBK FALSE
SORT SCHINESE_RADICAL_M FALSE
SORT JAPANESE_M FALSE
SORT KOREAN_M FALSE

valid values for NLS,布布扣,bubuko.com

valid values for NLS

标签：des   style   code   http   tar   ext   

原文地址：http://www.cnblogs.com/gispf/p/3786217.html