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Help matching fields between two classes


Help matching fields between two classes

By : user3861635
Date : November 20 2020, 07:00 PM
around this issue You're probably better off using a Map rather than a List, you can use the enum as the key and get the values out.
code :


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How to find duplicates in a large table based on matching and non matching fields?

How to find duplicates in a large table based on matching and non matching fields?


By : Kezzel
Date : March 29 2020, 07:55 AM
should help you out A less expensive way to run this query is to use exists and dispense with the distinct:
code :
SELECT li.[LineItemId]
FROM [dbo].[LineItem] li
WHERE EXISTS (SELECT 1
              FROM [dbo].[LineItem] as li2 on 
              WHERE li2.InvoiceDate = li.InvoiceDate and 
                    LEFT(li2.VendorName, 4) = LEFT(li.VendorName, 4) and 
                    li2.InvoiceId <> li.InvoiceId and  -- Invoice ID column not matching
                    li2.DocumentCurrencyAmount = li.DocumentCurrencyAmount and
                    li2.LineItemId <> li.LineItemId and
                    li2.ProjectId = li.ProjectId
WHERE MainTable.ProjectId = 1125;
How to find sets of rows with one or more fields matching and assign a set id for each matching set?

How to find sets of rows with one or more fields matching and assign a set id for each matching set?


By : user2622114
Date : March 29 2020, 07:55 AM
With these it helps I believe this will give you your desired result. A little explanation is in the comments, let me know if more is needed.
code :
with relations 
--Get all single relationships between vendors.
as (
    select t1.vendorId firstId,
        t2.vendorId secondId
    from VendorMaster  t1
    inner join VendorMaster  t2 on t1.vendorId < t2.vendorId and(
            t1.Phone = t2.Phone
            or t1.address = t2.address
            or t1.Fax = t2.Fax
            )
    ),
recurseLinks
--Recurse the relationships
as (
    select r.*, CAST(',' + CAST(r.firstId AS VARCHAR) + ',' AS VARCHAR) tree
    from relations r

    union all

    select r.firstId,
        l.secondId,
        cast(r.Tree + CAST(l.secondId AS varchar) + ',' as varchar)
    from relations l
    inner join recurseLinks r on r.secondId = l.firstId and r.tree not like '%' + cast(l.secondId as varchar) + ',%'

    union all

    select r.firstId,
        l.firstId,
        cast(r.Tree + CAST(l.firstId AS varchar) + ',' as varchar)
    from relations l
    inner join recurseLinks r on r.secondId = l.secondId and r.tree not like '%' + cast(l.firstId as varchar) + ',%'
    ),
removeInvalid
--Removed invalid relationships.
as (
    select l1.firstId, l1.secondId
    from recurseLinks l1
    where l1.firstId < l1.secondId
    ),
removeIntermediate
--Removed intermediate relationships.
as (
    select distinct l1.*
    from removeInvalid l1
    left join removeInvalid l2 on l2.secondId = l1.firstId
    where l2.firstId is null
    )
select result.secondId,
    dense_rank() over(order by result.firstId) SetId
from (
    select firstId,
        secondId
    from removeIntermediate 

    union all

    select distinct firstId,
        firstId
    from removeIntermediate 
    ) result;
Pull all fields with annotation (including fields inside an object in another and fields in inner classes)

Pull all fields with annotation (including fields inside an object in another and fields in inner classes)


By : vispen
Date : March 29 2020, 07:55 AM
should help you out The following classes implement the AnnotatedElement interface:
AccessibleObject Class Constructor Field Method Package
code :
<object>.isAnnotationPresent(Class<? extends Annotation> annotationClass)
<object>.isAnnotationPresent(ExcelColumn.class)
public void doMagicToFields(Object someObject){
    // Get all declared fields.
    Field[] fields = someObject.getClass().getDeclaredFields();
    for(Field field: fields){
        // If the field is annotated by @ExcelColumn
        if(field.isAnnotationPresent(ExcelColumn.class){
            // If the field is a String (add more checks as needed)
            if(String.class.equals(field.getType()){
                // Set the fields value to "myValue" in case of String.
                field.set(someObject, "myValue");
            }
            // Recursive call to check the nested fields of this field object.
            doMagicToFields(
                // We actually get the field object here.
                field.get(someObject)
            );
        }

    }
}
Awk: matching ranges of fields and making matching exceptions

Awk: matching ranges of fields and making matching exceptions


By : clebeg
Date : March 29 2020, 07:55 AM
I wish this help you A subset of my file looks like this:
code :
$ awk 'BEGIN{a[2];a[3];a[4];a[5];a[21]} {for (i in a) if ($i!="./.") b[$i]; print $1,(length(b)==1); delete b}' test.txt 
row1 0
row2 1
row3 0
row4 0
row5 1
awk '
  BEGIN{
    a[2];a[3];a[4];a[5];a[21]
  }

  {
    for (i in a)
      if ($i!="./.")
        b[$i]
    print $1,(length(b)==1)
    delete b
  }' test.txt 
a[2];a[3];a[4];a[5];a[21]
for (i in a) if ($i!="./.") b[$i]`
print $1,(length(b)==1)
delete b
$ awk -v x='2 3 4 5 21' 'BEGIN{split(x,a)} {for (i in a) if ($a[i]!="./.") b[$a[i]]; print $1,(length(b)==1); delete b}' test.txt 
row1 0
row2 1
row3 0
row4 0
row5 1
How can I compare two tables and delete on matching fields (not matching records)

How can I compare two tables and delete on matching fields (not matching records)


By : user3761315
Date : March 29 2020, 07:55 AM
I wish this help you Scenario: A sampling survey needs to be performed on membership of 20,000 individuals. Survey sample size is 3500 of the total 20000 members. All membership individuals are in table tblMember. Same survey was performed the previous year and members whom were surveyed are in tblSurvey08. Membership data can change over the year (e.g. new email address, etc.) but the MemberID data stays the same.
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