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Editorial Team
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Asked: 2026-05-28T04:37:48+00:00

I wrote the following query, but it appears to have an error, and I

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I wrote the following query, but it appears to have an error, and I was wondering if anyone could help me find it? I’m sorry about how long it is.

declare @Age int 
declare @Sex varchar(20)

set @Age=20
set @Sex='M'

select
    d.Dep_Name,d.Dep_Code,g.Group_Name,t.Test_Name,t.Test_Unit,(
    case 
        when at1.First_Age>=@Age and @Sex='M' then convert(varchar(10),at1.L_Bound_M_LessThan_1yr)+'-'+convert(varchar(10),at1.U_Bound_M_LessThan_1yr)
        when (at1.First_Age<@Age and at1.Second_Age>=@Age) and @Sex='M' then convert(varchar(10),at1.L_Bound_M_LessThan_20yr)+'-'+convert(varchar(10),at1.U_Bound_M_LessThan_20yr) 
        -- 5 more when statements

    ),
    st.Sub_Test_Name, st.Sub_Test_Unit, p.Result_Type, 
    p.Numeric_Value, p.Paragraph_Value ,p.Result_Normal,p.Sub_Test_ID,
    (
    case 
        when ast.First_Age>=@Age and @Sex='M' then convert(varchar(10),ast.L_Bound_M_LessThan_1yr)+'-'+convert(varchar(10),ast.U_Bound_M_LessThan_1yr) 
        --more WHEN's - mirrors the above case
    )
FROM 
    Patient_Test_3SC p LEFT JOIN
    ((Tests t INNER JOIN 
      Advanced_test_detail at1 on t.test_id=at1.test_id) LEFT JOIN 
     (Sub_Tests st INNER JOIN 
      Advanced_Sub_tests ast on st.sub_test_id=ast.sub_test_id) on t.Test_Code=st.Sub_Tests_Test_Code) 
         ON p.Test_ID=t.Test_ID 
    INNER JOIN Department d on p.Department_Code=d.Dep_Code 
    LEFT JOIN Groups g on p.Group_Code=g.Group_Code 
WHERE p.Patient_ID=@pid

I’ve had some errors in the code, and I’m not entirely sure where they’re from. Could someone please assist me in figuring out why I have an error in this SQL code?

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1 Answer

  1. Editorial Team
    declare @Age int 
declare @Sex varchar(20)
declare @pid varchar(20)

set @Age=20
set @Sex='M'

SELECT
    d.Dep_Name,d.Dep_Code,g.Group_Name,t.Test_Name,t.Test_Unit,
    st.Sub_Test_Name, st.Sub_Test_Unit, p.Result_Type, 
    p.Numeric_Value, p.Paragraph_Value ,p.Result_Normal,p.Sub_Test_ID,
    CASE 
        when at1.First_Age>=@Age and @Sex='M' then convert(varchar(10),at1.L_Bound_M_LessThan_1yr)+'-'+convert(varchar(10),at1.U_Bound_M_LessThan_1yr)
        when (at1.First_Age<@Age and at1.Second_Age>=@Age) and @Sex='M' then convert(varchar(10),at1.L_Bound_M_LessThan_20yr)+'-'+convert(varchar(10),at1.U_Bound_M_LessThan_20yr) 
        -- 5 more when statements
    END as 'var1',
    CASE 
        when ast.First_Age>=@Age and @Sex='M' then convert(varchar(10),ast.L_Bound_M_LessThan_1yr)+'-'+convert(varchar(10),ast.U_Bound_M_LessThan_1yr) 
        --more WHEN's - mirrors the above case
    END as 'var2'
FROM 
    Patient_Test_3SC p LEFT JOIN
    ((Tests t INNER JOIN Advanced_test_detail at1 on t.test_id=at1.test_id) LEFT JOIN 
     (Sub_Tests st INNER JOIN Advanced_Sub_tests ast on st.sub_test_id=ast.sub_test_id) on t.Test_Code=st.Sub_Tests_Test_Code) 
    ON p.Test_ID=t.Test_ID 
    INNER JOIN Department d on p.Department_Code=d.Dep_Code 
    LEFT JOIN Groups g on p.Group_Code=g.Group_Code 
WHERE p.Patient_ID=@pid
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