\u3044\u3084\u3041\u3069\u3082\u3002<\/p>\n
\u304a\u4e45\u3057\u3076\u308a\u3067\u3059\u3002<\/p>\n
\u304a\u4e45\u3057\u3076\u308a\u3067\u3059\u304c\u3001\u500b\u4eba\u30e1\u30e2\u3002<\/p>\n
Transac-SQL\u3067\u6587\u5b57\u304b\u3089\u6570\u5b57\u3078\u5909\u63db
\u30c6\u30fc\u30d6\u30eb Test
data(nvarchar)
———-
01
\u3000010
0003
A
\u3000B
———-<\/p>\n
\u2191\u306e\u3088\u3046\u306a\u3081\u3061\u3083\u304f\u3061\u3083\u306a\u30c7\u30fc\u30bf\u306e\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u304d\u308c\u3044\u306b\u5024\u3092\u53d6\u308a\u3060\u3059\u3002<\/p>\n
\u76ee\u6307\u3059\u7d50\u679c\u306f
Result
——–
1
10
A
B<\/p>\n
\u3053\u306e\u5834\u5408\u3001\u6570\u5b57\u3092\u4e00\u5ea6integer\u3067CAST\u3059\u308b\u3053\u3068\u3067\u3001\u982d\u306e\u7a7a\u767d\u30840\u3092\u306f\u305a\u305b\u307e\u3059\u3001\u304c\u3001Cast\u3060\u3068A\u3068B\u3067\u30a8\u30e9\u30fc\u304c\u51fa\u307e\u3059\u3002<\/p>\n
\u305d\u3053\u3067\u3053\u3093\u306a\u98a8\u306b\u3002
select
case when (IsNumeric(data)) = 1 then Cast(data as Integer)
else Ltrim(Rtrim(data))
end as Result
From Test<\/p>\n
\u304a\u3063\u3068\uff01\u305f\u3060\u3057\u30b3\u30ec\u3058\u3083\u300cnvarchar\u3092int\u306b\u5909\u63db\u3067\u304d\u307e\u305b\u3093\u300d\u7684\u306a\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u6b63\u76f4\u4e00\u6669\u60a9\u307f\u307e\u3057\u305f\u3002<\/p>\n
\u306a\u305c\u304b\u3002<\/p>\n
\u307e\u305a\u3053\u306eSQL\u306f\u7279\u306b\u30bd\u30fc\u30c8\u3057\u3066\u3044\u307e\u305b\u3093\u306e\u3067\u30c6\u30fc\u30d6\u30eb\u306e\u4e0a\u304b\u3089\u51e6\u7406\u3057\u307e\u3059\u3002<\/p>\n
01\u306fisnumeric\u30671\u304c\u5e30\u3063\u3066\u304d\u307e\u3059\u3002\u305d\u3053\u3067Cast\u3059\u308b\u3093\u3067\u3059\u304c\u3001\u3053\u306e\u3068\u304d\u306b\u30a8\u30a4\u30ea\u30a2\u30b9\u300cResult\u300d\u306e\u578b\u304cinteger\u306b\u6c7a\u5b9a\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n
\u3093\u3060\u3002\u3053\u307e\u3063\u305f\u3060\u3002<\/p>\n
\u3068\u3044\u3046\u308f\u3051\u3067\u3002<\/p>\n
select
case when (IsNumeric(data)) = 1 then str(Cast(data as Integer))
else Ltrim(Rtrim(data))
end as Result
From Test<\/p>\n
\u6587\u5b57\u5217\u306b\u5909\u63db\u3057\u3066\u3084\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u307e\u3041\u3061\u3087\u3063\u3068\u7279\u6b8a\u306a\u4e8b\u4f8b\u3067\u3059\u304c\u3001\u8ab0\u304b\u56f0\u3063\u305f\u4eba\u306e\u53c2\u8003\u306b\u3067\u3082\u306a\u308c\u3070\u3046\u308c\u3057\u3044\u3067\u3059\u3002<\/p>\n
\u3042\u3041\u307e\u3060\u307e\u3060\u4fee\u884c\u304c\u305f\u308a\u3093\u306a\u3041\u3002\u3002\u3002<\/p>\n
\u691c\u7d22\uff1a
Transact-SQL Cast IsNumeric Case When nvarchar\u306e\u5024 \u3092\u30c7\u30fc\u30bf\u578b int \u306b\u5909\u63db\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f \u30e1\u30c3\u30bb\u30fc\u30b8 245 \u30ec\u30d9\u30eb 16<\/p>\n","protected":false},"excerpt":{"rendered":"
\u3044\u3084\u3041\u3069\u3082\u3002 \u304a\u4e45\u3057\u3076\u308a\u3067\u3059\u3002 \u304a\u4e45\u3057\u3076\u308a\u3067\u3059\u304c\u3001\u500b\u4eba\u30e1\u30e2\u3002 Transac-SQL\u3067\u6587\u5b57\u304b\u3089\u6570\u5b57\u3078\u5909\u63db\u30c6\u30fc\u30d6\u30eb Testdata(nvarchar)———-01\u30000100003A\u3000B … \u7d9a\u304d\u3092\u8aad\u3080 Transact-SQL\u306b\u5f15\u3063\u304b\u304b\u308b\u3002<\/span>