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问题:

[多选] Which two statements about subqueries are true? ()

A . A single row subquery can retrieve data from only one table.
B . A SQL query statement cannot display data from table B that is referred to in its subquery, unless table B is included in the main query's FROM clause.
C . A SQL query statement can display data from table B that is referred to in its subquery, without including B in its own FROM clause.
D . A single row subquery can retrieve data from more than one table.
E . A single row subquery cannot be used in a condition where the LIKE operator is used for comparison.
F . A multiple-row subquery cannot be used in an INSERT statement to insert multiple rows at a time.

简述意外伤害保险的含义。 A large retailer wants to consolidate tape libraries. They currently have a Quantum library for theirUNIX platforms, and an STK library for their System z. They have a total of 12 drives in the twolibraries. Which IBM solution would be the most cost effective and satisfy the requirement?() Virtual Tape Server 。 IBM TS3584 with TS1130 drives 。 IBM TS3310 with 12 LTO-5 drives 。 IBM TS3400 with either LTO-5 or TS1130 drives installed&e。 信任是人格发展中()的普遍现象。 下列各选项中,()最有利于节税. 企业间拆借和社会筹资。 向金融机构贷款。 争取财政拨款和补贴。 企业内部人股改造股票。 简述数据电文的原件规制。 Which two statements about subqueries are true? ()
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