怎样判断一个移动号码是不是空号

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select * from tbl_Articles WHERE ArticleID=1696246 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1696246 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1696246 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1088872,1070038,1064553,1079429,987495,2681490,1132227,1073397,1066924,1051535,1063237,1071003,1094925,1048878,3235657,1090835,1049836,1066003,1055097,983962,1081247,1067739,1047321,1086081,1044735,1098325,1075977,1062712,1080444,1079950) ORDER BY field (ArticleID,1088872,1070038,1064553,1079429,987495,2681490,1132227,1073397,1066924,1051535,1063237,1071003,1094925,1048878,3235657,1090835,1049836,1066003,1055097,983962,1081247,1067739,1047321,1086081,1044735,1098325,1075977,1062712,1080444,1079950)