ใใกใใใOracle SQL ใฎใใฅใผใจใใกใใทใงใณใฎใใฌใณใใในใฟใคใซใซใคใใฆ่ฉฑใใพใใใใ ใใ ใใใใใใฎใใใใฏใฏใพใฃใใ็ฐใชใใใฎใงใใใใใๅๅฅใซๆฑใใใจใซๆณจๆใใฆใใ ใใใ
Oracle SQLใฎใตใผใในๅใใฅใผ ๏ผ ๆฆ่ฆ
ใตใผใในๅใใฅใผใฏใOracle SQL ใฎ้่ฆใชๅด้ขใงใใ ๅบๆฌ็ใซใใใใฏใใผใฟใใผในใฎ่ซ็่กจ็พใงใใใ็นๅฎใฎใตใผใในใๅฎ่กใใ Oracle ใใผใฟใใผในใฎใคใณในใฟใณในใฎใจใคใชใขในใจใใฆๆฉ่ฝใใพใใ ใใฎใใฅใผใซใใใๅผใณๅบใๅ
ใฎใขใใชใฑใผใทใงใณใจใฆใผใถใผใฏใๆ็คบ็ใชใคใณในใฟใณในๅใๅฟ
่ฆใจใใใซใใผใฟใใผในใซๆฅ็ถใใฆๅฏพ่ฉฑใงใใใใใซใชใใพใใ
ใใตใผใในๅใใฅใผใใฏใ่คๆฐใฎ็ฐใชใใตใผใในใๅไธใฎใใผใฟใใผในใใฟใผใฒใใใซใงใใใใใซใใใใๆฅ็ถใฎ่ฒ ่ทๅๆฃใใใงใคใซใชใผใใผใๅฎนๆใซใใใใใใชใฉใๅคใใฎๅ้กใ่งฃๆฑบใงใใพใใ
ใใฅใผ view_service_names AS ใไฝๆใพใใฏ็ฝฎๆใใพใ
SELECT ๅใdb_unique_nameใnetwork_name
v$services ใใ;
ใใฎ Oracle SQL ใณใผใใฏใใตใผใในๅใฎใใฅใผใไฝๆใใพใใๅ่กใฏใOracle ใใผใฟใใผในใธใฎใขใฏใปในใๅฏ่ฝใซใใใตใผใในๅใ่กจใใพใใ
Oracle SQL ใงใฎใตใผใในๅใใฅใผใฏใฉใฎใใใซๆฉ่ฝใใพใใ?
ใใฎใใญใปในใฏใใใฅใผใไฝๆใใใใจใใๅงใพใใพใใ ใใฎ Oracle SQL ใณใใณใใCREATE OR REPLACE VIEWใใฏใๆฐใใใใฅใผใไฝๆใใใใใใฅใผใใใงใซๅญๅจใใๅ ดๅใฏใใใ็ฝฎใๆใใใใใซไฝฟ็จใใใพใใ
ใณใใณใ SELECT name, db_unique_name, network_name FROM v$services; v$services ใใใในใฆใฎๅๅใไธๆใฎใใผใฟใใผในๅใใใใณใใใใฏใผใฏๅใๅ้ใใพใใใใใฏใใในใฆใฎใขใฏใใฃใใชใตใผใในใซ้ขใใๆ
ๅ ฑใ่กจ็คบใใๅ็ใใใฉใผใใณใน ใใฅใผใงใใ
ใใฅใผใ็ขบ็ซใใใๅพใๆจๆบใฎ SELECT * FROM view_service_names; ใๅฎ่กใใฆใตใผใในๅใ่ชฟในใใใจใใงใใพใใ ใฏใจใชใ ็ตๆใฏใใใพใใพใช็ฎ็ใซๅฉ็จใงใใ็พๅจใฎใในใฆใฎใตใผใในๅใฎใชในใใซใชใใพใใ
SELECT * FROM view_service_names;
ใตใผใในๅใใฅใผใฎๅฉ็นใจไฝฟ็จไพ
ใตใผใในๅใไฝฟ็จใใๅคงใใชๅฉ็นใฎ XNUMX ใคใฏใOracle ใใผใฟใใผในใฎ็ฎก็ใจๅถๅพกใๅฎนๆใซใชใใใจใงใใ ใใจใใฐใใฏใผใฏใญใผใใ้ฉๅใชใใผใฟใใผใน ใคใณในใฟใณในใซๆฏใๅใใใใใฏใฉใคใขใณใๅดใฎๆฅ็ถ่ฒ ่ทๅๆฃใๆงๆใใใใใใฎใซๅฝน็ซใกใพใใ ใใ XNUMX ใคใฎๅฉ็นใฏใReal Application Clusters (RAC) ็ฐๅขใงใฎๆฅ็ถใใงใคใซใชใผใใผใๅฎนๆใซใชใใใจใงใใ
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