DB2 考试 730 模拟试题 1. Which of the following is NOT true about XML columns? A.Data can be retrieved by SQL. B.Data can be retrieved by XQuery. C.XML columns must be altered to accommodate additional parent and child relationships. D.Access to any porti
oracl 和db2 常用语法比较： 1、取前N条记录 Oracle：Select * from TableName where rownum <= N; DB2：Select * from TableName fetch first N rows only; 2、取得系统日期 Oracle：Select sysdate from dual; DB2：Select current timestamp from sysibm.sysdummy1; 3、空值转换 Oracle：Select
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DRDA V5 Vol. 1: Distributed Relational Database Architecture This document is one of three Open Group Standards documenting the Distributed Relational Database Architecture (DRDA), Version 5. This volume describes the connectivity between relational
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DRDA V5 Vol. 3: Distributed Data Management Architecture This document is one of three Open Group Standards documenting the Distributed Relational Database Architecture (DRDA), Version 5. This volume describes the architected commands, parameters, o
