有一个表TB1的结构如下(其中AAA+CCC是主键, AAA+BBB是约束索引):
AAA BBB CCC DDD
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DA10058159 , 0 , 1 , A1
DA10058159 , 1 , 2 , A9
DA10058159 , 2 , 3 , M3
DA10058159 , 3 , 4 , C3
DA10058159 , 4 , 5 , C5
DA10058159 , 5 , 6 , C7
DA10058159 , 6 , 7 , C9
DA10058159 , 7 , 8 , D1
DA10058159 , 8 , 9 ,&n
（1）string ConnString = "server=localhost;integrated security=sspi;database=pubs;";
（2）string strConnection="user uid=sa;pwd=123456;Database=test;Server=test;Connect ......
