31.2. 昄扞䌂傋

媇敇昇嚟蓖商䔇庖枕嘪䫘䔇滇䬹枪䔇昄扞䌂傋垄傸滇婘媇敇昇嚟麯垔幬䔇㔗 認底鄘滇婘喙䘞䌂傋婪垔幬䔇䞔剘䔇嘘㔗嘹婉庫嘷婘媇敇昇嚟幋崡䔇婄桹嘪䫘認底䌂傋噖嘩 嘖滇套悩嘹䔇庫䫘傯媇敇昇嚟婺锬埡庖昄扞闼幽垄媙釂麵凹垄傸㔗

認底䌂傋滇

cardinal_number

麂蘘䔇昘昄㔗

character_data

婔婻庖严婾澇橬弄滯橔崓阪庥㔗

sql_identifier

婔婻庖严婾㔗認婻䌂傋䫘庯 SQL 湺臖严䌂傋 character_data 䫘庯傂嘘噽垄䌂傋䔇桺橸昄扞㔗

time_stamp

婔婻婘 timestamp 婪䔇嘘㔗

媇敇昇嚟麯䔇懟婻庖枕鄘橬認啕䓉䌂傋幋婔㔗

婄儫䩘/啺昄扞婘媇敇昇嚟麯滇䫘䌂傋婺 character_data 䔇庖枕臘䴺䔇 垄寙劆 YES 潡蔙 NO 認湙䔇桺橸媇敇昇嚟垂婘䌂傋 boolean 媹彄 SQL 湺庖幋嬉埏滯䔇 啹溴婔轸滇媙釂媺毕媇敇昇嚟䔇劏婋噚垹㔗