单选题建立表之间临时关联的命令是（ ）。ACREATE RELATION TO……BSET RELATION TO……CTEMP RELATION TO……DCREATE TEMP TO……
单选题
建立表之间临时关联的命令是（ ）。
A
CREATE RELATION TO……
B
SET RELATION TO……
C
TEMP RELATION TO……
D
CREATE TEMP TO……
参考解析
解析：
临时联系是用SET RELATION命令建立的。SET RELATION命令的格式是：SET REI ATION TO eExpressionl INTO nWorkAreal | cTableAliasl
临时联系用于控制不同工作区中记录指针的关系。
临时联系是用SET RELATION命令建立的。SET RELATION命令的格式是：SET REI ATION TO eExpressionl INTO nWorkAreal | cTableAliasl
临时联系用于控制不同工作区中记录指针的关系。
相关考题：
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