如何检查 Decimal 数组中的任何值是否存在于 table 的 decimal 字段中？

Question

让我有一个十进制数组 BOOK_NO[]。我有这样的现有查询：

PrintOrderList = (
    from t1 in db.DIS_SET_PRINT_REQ
    join t2 in db.RND_BOOK on t1.F_BOOK_NO equals t2.BOOK_NO into first_joined
    where (t1.IS_EXIST == 1 && 
        t1.F_COMPANY_NO == Company_No &&  
        @book_no.(t1.F_BOOK_NO))
    from dept_data in first_joined.DefaultIfEmpty()
    select new DIS_SET_PRINT_REQ_R_SINGLE_MODEL
    {
        BOOK_NO = dept_data.BOOK_NO,
        BOOK_NAME = dept_data.BOOK_NAME,
        EDITION_NAME = dept_data.RND_SET_BOOK_EDITION.BOOK_EDITION_NAME,
        FISCAL_YEAR = t1.SNS_SET_FISCAL_YEAR.FISCAL_YEAR_NAME,
        ACADEMIC_LEVEL = dept_data.RND_SET_BOOK_ACA_LEVEL.BOOK_ACA_LEVEL_NAME,
        PRINT_QUANTITY = t1.BOOK_QTY,
        PRINT_REQ_NO = t1.PRINT_REQ_NO,
        PRINT_SEQ = (db.DIS_SET_PRINT_REQ_DTL.Where(x => x.F_PRINT_REQ_NO == t1.PRINT_REQ_NO)
                                             .Where(x => x.IS_EXIST == 1)
                                             .OrderBy(x => x.PRINT_REQ_DTL_NO)),
        FISCAL_YEAR_NO = t1.F_FISCAL_YEAR_NO,
        EDITION_NO = t1.RND_BOOK.F_BOOK_EDITION_NO,
        ACADEMIC_LEVEL_NO = dept_data.RND_SET_BOOK_ACA_LEVEL.BOOK_ACA_LEVEL_NO,
        CATEGORY_NO = dept_data.F_BOOK_CATEGORY_NO
    }).ToList();

这里我需要放一个条件BOOK_NO[]包含任何t1.F_BOOK_NO

Answer 1

在 BOOK_NO[] 上使用 .Contains 检查 t1.BOOK_NO 是否在其中

PrintOrderList = (
    from t1 in db.DIS_SET_PRINT_REQ
    join t2 in db.RND_BOOK on t1.F_BOOK_NO equals t2.BOOK_NO into first_joined
    where t1.IS_EXIST == 1 && 
        t1.F_COMPANY_NO == Company_No &&  
        book_no.Contains(t1.F_BOOK_NO)
    from dept_data in first_joined.DefaultIfEmpty()
    select new DIS_SET_PRINT_REQ_R_SINGLE_MODEL
    {
        BOOK_NO = dept_data.BOOK_NO,
        BOOK_NAME = dept_data.BOOK_NAME,
        EDITION_NAME = dept_data.RND_SET_BOOK_EDITION.BOOK_EDITION_NAME,
        FISCAL_YEAR = t1.SNS_SET_FISCAL_YEAR.FISCAL_YEAR_NAME,
        ACADEMIC_LEVEL = dept_data.RND_SET_BOOK_ACA_LEVEL.BOOK_ACA_LEVEL_NAME,
        PRINT_QUANTITY = t1.BOOK_QTY,
        PRINT_REQ_NO = t1.PRINT_REQ_NO,
        PRINT_SEQ = (db.DIS_SET_PRINT_REQ_DTL.Where(x => x.F_PRINT_REQ_NO == t1.PRINT_REQ_NO)
                                             .Where(x => x.IS_EXIST == 1)
                                             .OrderBy(x => x.PRINT_REQ_DTL_NO)),
        FISCAL_YEAR_NO = t1.F_FISCAL_YEAR_NO,
        EDITION_NO = t1.RND_BOOK.F_BOOK_EDITION_NO,
        ACADEMIC_LEVEL_NO = dept_data.RND_SET_BOOK_ACA_LEVEL.BOOK_ACA_LEVEL_NO,
        CATEGORY_NO = dept_data.F_BOOK_CATEGORY_NO
    }).ToList();

如何检查 Decimal 数组中的任何值是否存在于 table 的 decimal 字段中？

How to check any value from Decimal array exist in a decimal field of a table?

c#

linq-to-sql