Okay, so let's say I have two tables in Excel. I want to create a third table that looks up data from the other two and combines them. I'll explain what I mean
Here is my first table:
It has a number, which is like a primary key, and a corresponding name for each entry.
I also have a second table:
This one just contains some random info, and there's numerous entries. The Client Name is not listed here, but it does have the key for the client that each entry corresponds to.
I want to create a third table that shows me all the Client Info data, but replaces the key with the actual client name. So basically, wherever it sees a key of "1", it'll look that up from the first table and find "Comet" instead.
The desired table would look like this:
What kind of formula would I need to pull data from one table based on a value? Note that all my tables are in different worksheets.
Assuming that the three tables are in Sheet1, Sheet2, Sheet3, this is the formula you need in Sheet3, cell A2
=vlookup(Sheet2!A2,Sheet1!$A2$b$6,2,false)
Copy down as many rows as there are rows in Sheet2
If you need the client info from Sheet2, use this in Sheet3, cell B2 and copy down
=sheet2!B2
As you put an "SQL" tag, I assume that you are also looking for an SQL based answer. So in addition to #teylyn suggestion, you can use the following SQL query if you are working with SQL databases:
SELECT table1.Client_Name, table2.Client_Info
FROM table1
RIGHT JOIN table2 ON table1.ID_Number = table2.ID_Number
Here is what this query does:
The RIGHT JOIN will return all rows from the right table (here table2), with the matching rows in the left table (here table1) according to the condition specified by the ON clause (here, if the ID Number is the same). Then, the SELECT clause will return a table with ONLY the columns specified after the keyword SELECT.
Related
Trying to create relationships (joins) between tables in power pivot.
Got 2 tables I wold like to join together, connected with a common column = CustomerID.
One is a Fact Table the other Dim table (look up).
I have run the "remove duplicates" on both tables without any problem.
But I still get an error saying : "the relationship cannot be created because each column contains duplicate values. Select at least one column that contains only unique values".
The Fact Table contains duplicates (as it should?) and the Dim Table do not, why do I get this error?
Help much appreciated
Created an appended table with both columns "CustomerID". After the columns where appended together I could "remove duplicates" and connect the tables together through the newly created appended table.
Don't know if this causes another problem later however.
You can also check for duplicate id values in a column by using the group by feature.
Remove all columns except ID, add a column that consists only of the number 1.
Group by ID, summing the content of the added column and filter out IDs whose total equals 1. What's left are duplicated IDs.
I have a table of data in Excel. Column A contains Names, Column B contains their interest. Each interest has a separate row. I want to take the data from this table and have a single row with the name of the customer and a column for each of their interests. IE RAW Data:
I am looking to take the 4000 row table and grouping by the name. I am unsure how many times each name appears in the list (Once or Fifty times) but I want the interests placed on a single row with each interest in a separate column EG Desired Data:
I have tried the standard transpose....html table....and pivot tables but it will put the interests all in a row along the top regardless if the customer is interested or not and using a record count T/F that means the data sheet in harder to understand then if I leave it as one block and sort by name
Sure I am not alone with this but all searches for the past 2 hrs keep returning pivot/transpose or duplicate items. Any is appreciated
If you don't want to use VBA, you could first add a column, for instance in column C, with the title "InterestNum."
In C2, just put 1.
In C3, put =COUNTIF($A$2:$A2, $A3) + 1. This will find the number interest it is for the person.
Make a lookup column, for instance in column D. In D2, put =A2&C2
Then, make a list of all the people. I assume that you put this list starting in cell A2 of a new sheet. Then put headers starting in B1 so that B1 contains the title "1" and C1 contains the title "2" standing for the interest number and as many columns as you wish.
Then in Cell B2, put the formula =IF(ISNA(MATCH($A2&B$1,data!$D$2:$D$5,0)),"",INDEX(data!$B$2:$B$5,MATCH($A2&B$1,data!$D$2:$D$5,0)))
This assumes that your original data is in the data tab. I only tested with 4 rows, so you would need to change $D$2:$D$5 to have as many rows as you do. This works by looking up a combination of the name and interest number. It first checks to see if that combination exists in the data. If not, it leaves that interest blank. If so, it finds the actual interest by going to the same row of the lookup.
First remove duplicates using standard excel functionality to prevent having the same interest twice for a person.
Now, you could of course use VBA and perform exactly what you need.
However, I suggest that you use the pivot table.
If your data looks something like this...
... just use "Insert | Pivot table" and insert a pivot table to a new worksheet.
Then, configure the columns as follows:
Et voilà, there you have all your interests listed only once and if a person shares an interest, there is a "1".
If you would rather use VBA, just comment and I will edit my answer.
I have two large Hive tables, say TableA and TableB (which get loaded from different sources).
These two tables have almost identical table structure / columns with same partition column, a date stored as string.
I need to filter records from each table based on certain (identical) filter criteria.
These tables have some columns containing "codes", which need to be looked up to get its corresponding "values".
There are eight to ten such lookup tables, say, LookupA, LookupB, LookupC, etc.,
Now, I need to:
do a union of those filtered records from TableA and TableB.
do a lookup into the lookup tables and replace those "codes" from the filtered records with their respective "values". If a "code" or "value" is unavailable in the filtered records or lookup table respectively, I need to substitute it with zero or an empty string
transform the dates in the filtered records from one format to another
I am a beginner in Hive. Please let know how I can do it. Thanks.
Note: I can manage till union of the tables. Need some guidance on lookup and transformation.
To basically do a lookup Please follow these steps below,
You have to create a custom User Defined function(UDF) which basically does the look up work,meaning you have to create a Java Program internally for looking up, jar it and add it to Hive something like below:
ADD JAR /home/ubuntu/lookup.jar
You then have to add lookup file containing keyvalue pair as follows:
ADD FILE /home/ubuntu/lookupA;
You then have to create a temporary lookup function such as
CREATE TEMPORARY FUNCTION getLookupValueA AS 'com.LookupA';
Finally you have to call this lookup function in the Select query which will basically populate lookup value for the given lookup key.
Same thing can be achieved using JOIN but that will take a hit on the performance.
Taking a join approach you can very well join by the lookupcode for source and lookup tables something like
select a.key,b.lookupvalue
table a join lookuptable b
where a.key=b.lookupKey
Now for Date Transformation, you can use Date functions in Hive.
For the above problem follow the following steps:
Use union schema to union two tables(schema must be same).
For the above scenario you can try pig script.
script would look like(jn table A and tableB with lookup table and generate the appropriate columns):
a = join TableA by codesA left outer, lookupA by codesA.
b = join a by codesB left outer, lookupB by codesB.
Similarly for Table B.
Suppose some value of codesA does not have a value in the lookup table, then:
z = foreach b generate codesA as codesA, valueA is null ? '0' as valuesA.
(will replace all null values from value with 0).
If you are using Pig 0.12 or later, you can use ToString(CurrentTime(),'yyyy-MM-dd')
I hope it will solve your problem. Let me know in case of any concern.
Good afternoon,
I am still quite a novice with VBA but am trying to create a loop that will be able to sift through a long list of data within a given column (in my case, both tables have one common identifier, the system ID) and if a system ID is matched in one column with a column from the other table, then a new sheet is created that combines all of the rows associated with both sets of data into one row.
For example, if my data looked like this:
Table 1
Column A, Column B, Column C |
ID, Name, Birthday
Table 2
Column A, Column B, Column C|
Purchase, Amount, ID
And I had the same ID in both Tables 1 and 2, for each match, I would like to have all rows associated with the match joined together.
This would really enable me to speed things up with organizing information, so I was not sure if it would be possible... Any Ideas are welcome!
since excel is not a database program like access, you can not use sql-like joins natively. you would have to program your own join function:
(Since i do not have MS Office installed, i can only give you pseudo-code)
for each-loop going through IDs of Table1
for each-loop going through IDs of Table2
if(Table1.ID = Table2.ID) then
copy data of Table1 into a new sheet
copy data of Table2 into the same sheet, next to Table1 data
PS: i assume you use excel because of the vocabulary (column, worksheet,..)
I have a exported Excel sheet from SQL with records for insurance policies held by vendors that visit our office. There are two separate tables that identify the Insurer and the Vendor by a code. The table with the records of all the policies just has the codes for both of them.
Is there a formula that can look at another sheet for a value, and pull in another column from that sheet? Basically there is a key code for each vendor, and I need to replace that code with their actual name from another excel sheet.
Or if there is a simpler way to do this in SQL I could try that too.
In SQL you can JOIN the tables together:
SELECT i.col1,i.col2,v.col1
FROM Insurer i
JOIN Vendor v
ON i.key_code = v.key_code
Adjusting which columns you return as needed, without sample data it's unclear if there needs to be additional criteria in the JOIN.
In Excel you can use VLOOUKUP(), but I prefer INDEX() and MATCH(), below would try to match the value in B1 to a value on Sheet2 in B1:B20, and return the value from the corresponding row from Sheet2 A1:A20:
=INDEX(Sheet2!$A$1:$A$20,MATCH(B1,Sheet2!$B$1:$B$20,0))
There are numerous illustrated examples of either excel method that will be easy to follow.