今天在调试的过程中发现 在vb中拼SQL的时候发现"()" 作用很大
eg: table: T_TEST col : T_KB int ,S_CD int ,Z_SU int
dim gcstrT_1 ,gcstrT_3 as integer
gcstrT_1 = 1
gcstrT_3 = 3
strWhere = strWhere & "……"
strWhere = strWhere & "AND ((T_KB = " & gcstrT_1 &; ") " '注意点 AND 后面需要一个括号 "("
strWhere = strWhere & "OR "
strWhere = strWhere & " (T_KB = " & gcstrT_3 & " "
strWhere = strWhere & " AND S_CD IS NOT NULL "
strWhere = strWhere & " AND Z_SU > 0 )) " '注意点 AND 后面需要一个括号 ")"
AND 后面的条件是一个整体,所以加"()"
已知有一个XML文件（bookstore.xml）如下：
<?xml version="1.0" encoding="gb2312"?>
<bookstore>
<book genre="fantasy" ISBN="2-3631-4">
<title>Oberon's Legacy</title>
<author>Corets, Eva</author>
<price>5.95</price>
</book>
< ......
