58.The PART_CODE column in the SPARES table contains the following list of values:
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58.The PART_CODE column in the SPARES table contains the following list of values:
PART_CODE
A%_WQ123
A%BWQ123
AB_WQ123
Evaluate the following query:
SQL> SELECT part_code FROM spares WHERE part_code LIKE '%\%_WQ12%' ESCAPE '\';
Which statement is true regarding the outcome of the above query?
A.It produces an error.
B.It displays all values.
C.It displays only the values A%_WQ123 and AB_WQ123 .
D.It displays only the values A%_WQ123 and A%BWQ123 .
E.It displays only the values A%BWQ123 and AB_WQ123.
答案：D
解析：ESCAPE 后面的字符为转义字符，%\%_WQ12%，因此第一个%为模糊匹配然后是转义字符\,转义的是%,因此选择带有%号的
所以，排除ABCE，因此选择D,"_"为匹配任意一个字符
PART_CODE
A%_WQ123
A%BWQ123
AB_WQ123
Evaluate the following query:
SQL> SELECT part_code FROM spares WHERE part_code LIKE '%\%_WQ12%' ESCAPE '\';
Which statement is true regarding the outcome of the above query?
A.It produces an error.
B.It displays all values.
C.It displays only the values A%_WQ123 and AB_WQ123 .
D.It displays only the values A%_WQ123 and A%BWQ123 .
E.It displays only the values A%BWQ123 and AB_WQ123.
答案：D
解析：ESCAPE 后面的字符为转义字符，%\%_WQ12%，因此第一个%为模糊匹配然后是转义字符\,转义的是%,因此选择带有%号的
所以，排除ABCE，因此选择D,"_"为匹配任意一个字符
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