Question

我正在尝试运行此查询：

SELECT qry_performPrep2Elo_wta.PK_G, IIf([ID1_ocEdge]>0,[ID1_ocStake],0) AS ocStake, IIf([ID1_ocEdge]>0,[ID1_ocStake]*([ID1_ocmktPr]-1)) AS ocPL
FROM tbl_G_ov_wta INNER JOIN qry_performPrep2Elo_wta ON tbl_G_ov_wta.PK_G = qry_performPrep2Elo_wta.PK_G
WHERE (((tbl_G_ov_wta.ID1_G_Tot_Ov)>=(SELECT Min_games_wta FROM [tbl_ref_games] WHERE Surface = "All surfaces")));

但是我收到“函数的无效参数”错误。如果删除WHERE子句并运行以下命令：

SELECT qry_performPrep2Elo_wta.PK_G, IIf([ID1_ocEdge]>0,[ID1_ocStake],0) AS ocStake, IIf([ID1_ocEdge]>0,[ID1_ocStake]*([ID1_ocmktPr]-1)) AS ocPL
FROM tbl_G_ov_wta INNER JOIN qry_performPrep2Elo_wta ON tbl_G_ov_wta.PK_G = qry_performPrep2Elo_wta.PK_G;

一切正常。我调查了WHERE子句，看不到问题的原因。确实，当我删除IIF语句但包含WHERE子句时：

SELECT qry_performPrep2Elo_wta.PK_G
FROM tbl_G_ov_wta INNER JOIN qry_performPrep2Elo_wta ON tbl_G_ov_wta.PK_G = qry_performPrep2Elo_wta.PK_G
WHERE (((tbl_G_ov_wta.ID1_G_Tot_Ov)>=(SELECT Min_games_wta FROM [tbl_ref_games] WHERE Surface = "All surfaces")));

一切正常。

PK_G字段是在表和查询中通用的主键。

有什么想法吗？

Answer 1

您错过了这里的零：

IIf([ID1_ocEdge]>0,[ID1_ocStake]*([ID1_ocmktPr]-1),0)

为什么在查询中出现“函数的参数无效”错误？

1 个答案: