摘要：
SET SESSION CHARACTERISTICS AS TRANSACTION ISOLATION LEVEL SERIALIZABLE; set default_transaction_isolation='repeatable read'; set transaction isolatio 阅读全文
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摘要：
SET SESSION CHARACTERISTICS AS TRANSACTION ISOLATION LEVEL SERIALIZABLE; set default_transaction_isolation='repeatable read'; set transaction isolatio 阅读全文
摘要：
测试 每次执行时，都会增merge出 create table tabx as select * from dba_objects; create sequence pub_seq ; merge into tabx t1 using tabx t2 on (t1.object_id=t2.obje 阅读全文
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