Question

我尝试像这样执行简单的LINQ查询

var images = context.IMAGES;
images = from img in images
         join imt in context.IMAGE_TAG on img.ID equals imt.ID_IMAGE
         where tags.Any(tag => imt.TAGS.NAME.Contains(tag))
         select img;

当firebird适配器转换为SQL查询时，它会尝试将我的西里尔文本转换为utf-8，如下所示

CAST(_UTF8'тату' AS VARCHAR(8191)) AS "C1"

我得到了

＆＃34;动态SQL错误\ r \ nSQL错误代码= -104 \ r \ n已形成字符串＆＃34;

更新： 生成的查询：

SELECT "C"."ID" AS "ID", "C"."GUID" AS "GUID", "C"."EXT" AS "EXT", "C"."ID_USER" AS "ID_USER", "C"."IS_NEW" AS "IS_NEW"FROM  "IMAGES" AS "C"INNER JOIN "IMAGE_TAG" AS "D" ON "C"."ID" = "D"."ID_IMAGE"WHERE  EXISTS (SELECT     1 AS "C1"   FROM   (SELECT      CAST(_UTF8'тату' AS VARCHAR(8191)) AS "C1"      FROM  ( SELECT 1 AS X FROM RDB$DATABASE) AS "G" UNION ALL       SELECT      CAST(_UTF8'tatuir' AS VARCHAR(8191)) AS "C1"        FROM  ( SELECT 1 AS X FROM RDB$DATABASE) AS "H") AS "I" LEFT OUTER JOIN  (SELECT        "K"."ID" AS "ID",       "K"."NAME" AS "NAME"        
FROM "TAGS" AS "K"      
WHERE "D"."ID_TAG" = "K"."ID" ) AS "L" ON CAST(1 AS SMALLINT) = CAST(1 AS SMALLINT) WHERE (POSITION("I"."C1", "L"."NAME")) > 0)

标签简单表：

CREATE TABLE TAGS (
    ID    INTEGER NOT NULL,
    NAME  VARCHAR(50) NOT NULL
);

＆＃34; NAME＆＃34;列有WIN1251字符集。

Answer 1

您似乎使用了一些非UTF8字符集进行连接。用户UTF8作为连接字符集，你很好。

格式错误的字符串异常Firebird + linq

1 个答案: