三书一表指的是什么

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select * from tbl_Articles WHERE ArticleID=1119892 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1119892 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1119892 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1275747,1128409,1084091,1125009,1088754,1130514,1104507,1128920,1106769,1124187,1132885,1305434,1106853,1132835,1133433,1120235,1103963,1128557,1125389,1126146,1131217,1108488,1128569,1107088,1127527,1124352,1127333,1139496,1127353,1131949) ORDER BY field (ArticleID,1275747,1128409,1084091,1125009,1088754,1130514,1104507,1128920,1106769,1124187,1132885,1305434,1106853,1132835,1133433,1120235,1103963,1128557,1125389,1126146,1131217,1108488,1128569,1107088,1127527,1124352,1127333,1139496,1127353,1131949)