If anyone can help
I have two tables like this:
field.tab1
111
1110
1111
1112
field.tab2
111
I need to update table 2 like this:
field.tab2
1113
Thank you for your quick response and guidance
Yes I'm new here and in sql, access too, I have those two tables that i need to compare and make the field from second table to have unique records because will be appended to the first table, so this is what i've done in access:
SELECT tab2.field, tab1.field, tab1.field1, tab2.field1
FROM tab2 LEFT JOIN tab1 ON tab2.field=tab1.field;
and manualy increase every tab1.field :) until tab2.field and tab2.field1 become null, where field is the number of client and field1 number of order.
The natural answer to this question is:
update field.tab2
set col = 1113
where col = 111;
Related
I'm using SQL Server 2017 and I have a question on how to return specific values (I'm not sure 100% if I should be using joins or subqueries.) I tried to put an example below of what I'm trying to do and hopefully someone can help me out with this.
I have two tables below:
Table 1
Record
Topic
100
History
101
Science
102
Art
103
Music
Table 2
Record
Course
100
Intro
100
Intermediate
101
Intermediate
101
Advanced
102
Intro
102
Intermediate
103
Intermediate
103
Advanced
I want to join the two tables together, but only bring back the columns 'Record' and 'Topic' ONLY where the Record DOES NOT have an 'Intro' course attached to it.
So I would want to bring back the following results (since both Courses do not have an Intro class):
Record
Topic
101
Science
103
Music
So far I've had no luck and am bringing back more records than I should so any help or guidance would be appreciated. Thank you in advance.
You could use exists logic here:
SELECT Record, Topic
FROM Table1 t1
WHERE NOT EXISTS (
SELECT 1
FROM Table2 t2
WHRE t2.Record = t1.Record AND
t2.Course = 'Intro'
);
I am trying to work with two tables on BigQuery. From table1 I want to find the accession ID of all records that are "World", and then from each of those accession numbers I want to create a column with every name in a separate row. Unfortunately, when I run this:
Select name
From `table2`
Where acc IN (Select acc
From `table1`
WHERE source = 'World')
Instead of getting something like this:
Acc1
Acc2
Acc3
Jeff
Jeff
Ted
Chris
Ted
Blake
Rob
Jack
Jack
I get something more like this:
row
name
1
Jeff
2
Chris
3
Rob
4
Jack
5
Jeff
6
Jack
7
Ted
8
Blake
Ultimately, I am hoping to download the data and somehow use python or something to take each name and count the number of times it shows up with each other name at a given accession number, and furthermore measure the degree to which each pairing is also found with third names in any given column, i.e. the degree to which they share a cohort. So I need to preserve the groupings which exist with each accession number, but I am struggling to find info on how one might do this.
Could anybody point me in the right direct for this, or otherwise is the way I am going about this wise if that is my end goal?
Thanks!
This is not a direct answer to the question you asked. In general, it is easier to handle multiple rows rather than multiple columns.
So, I would recommend that you put each acc value in a separate row and then list the names as an array:
select t2.acc, array_agg(t2.name order by t2.name) as names
from `table2` t2
where t2.acc in (Select t1.acc
From `table1` t1
where t1.source = 'World'
)
group by t2.acc;
Otherwise, you are going to have a challenge just naming the columns in your result set.
Here I am trying to get the record for my products where the # swab location in Main table matches the count of swab locations in swab Table and Users can checked off the Y/N to verify that the description of the locations are correct.
Here is the example of my 2 tables.
tblMainEquipment
Asset_ID EquipmentName Num_SwapLocations Verified
234 Saijimon 2 N
235 Pasquale 3 N
tblMainSwapLocations
Asset_ID Swap_location
234 Particle Cannon
234 RailGun
235 Particle Cannon
I use the following query to count the number of records, i avoided using a having query to combine both tables since it is not updatable.
qryMainSwapLocationCount
SELECT MSL.Asset_ID, Count(Asset_ID) AS [Count]
FROM tblMainSwapLocation AS MSL
GROUP BY MSL.Asset_ID;
This will give me the result of
qryMainSwapLocationCount
Asset_ID count
234 2
234 1
I used the following as a record source for my form to allow users to verify the inputs.
SELECT MEQ.Asset_ID, MEQ.Equipment_Name,MEQ.Num_swapLocations MEQ.Verified
FROM tblMainEquipment AS MEQ, qryMainSwapLocationCount AS MSLC
WHERE (((MEQ.Asset_ID)=[MSLC].[Asset_ID]) AND ((MEQ.Num_SwapLocations)=[MSLC].[Count]);
This result would be
tblMainEquipment
Asset_ID EquipmentName Num_SwapLocations Verified
234 Saijimon 2 N
However this record set is not editable. Is there any reasons for this?
I think you should put your table tblMainEquipment as your recordsource and bring all the fields from that on to your form:
Then insert an unbound textbox (perhaps close to your Num_SwapLocations field for easy comparison):
Then in this new textbox, put the following in the ControlSource:
=DCount("ASSET_ID","tblMainSwapLocations","ASSET_ID=" & [Asset_ID])
Then open your form and it should count the number of records in table tblMainSwapLocations that have the same Asset_ID as the record currently showing:
You'll then be able to update the Verified field in your tblMainEquipment table.
I have got the following 3 fields in a file: person_ows person_is_owed amount
Example content:
Bob John 100
John Bob 110
What does a SQL look like that produces:
Bob John 100 110
John Bob 110 100
Sorry if this is a trivial question, but I am just trying to learn SQL and I find it really like HELL!
So, what you need is to be able to JOIN two rows. In this case you'll probably want an OUTER JOIN assuming that there isn't always a match of each owing the other. Now you just need to come up with your JOIN criteria, which in this case is going to be based on the names (person_owes and person_is_owed):
SELECT
T1.person_owes,
T1.person_is_owed,
T1.amount AS owes_amount,
COALESCE(T2.amount, 0) AS is_owed_amount
FROM
My_Table T1
LEFT OUTER JOIN My_Table T2 ON T2.person_is_owed = T1.person_owes
The COALESCE is just to make sure that when there is no match that you get a value of 0 instead of NULL.
Also, this assumes that there is only going to be one of each combination of person_owes and person_is_owed. If you might have two rows showing that John owes Bill two different amounts of money then you would have to adjust the SQL above and it would be a bit more complex.
If you plan to use SQL much then you should invest the time in reading one (or preferably more) beginning books on the subject.
Assuming that the combination of (person_ows, person_is_owed) is unique
select person_ows,
person_is_owed,
amount,
(select t2.amount
from the_table t2
where (t2.person_ows, t2.person_is_owed) = (t1.person_is_owed, t1.person_ows))
from the_table t1
I have two tables, one contains user data and the other contains user ranking information (points needed for the promotion)
Let's say that the user table looks like this:
login | ArticlePoints | PhotoPoints | StageId
and the user ranking information table looks like this:
StageId | StageName | MinimumPoints
and the user information table might contain data like this:
1 | Beginner | 100
2 | Advanced | 200
3 | Expert | 300
What I would like to have is a procedure which does add user points and check whether it is enough for the ranking promotion. Right now I do it like this:
I do have a function which does check "manually" whether the user points is between 100 and 200 and then it does set the user stage = 2, id it's more it check whether it's between 200 and 300 etc.
Stored procedure which does update users set stage = MYFUNCTION from the point 1.
The thing is that it's not a good solution, right now it is not ready for the easy updates(I can't just add Super Expert with minimum 400 points, I'd need to edit the function).
I am trying to prepare a better solution for this problem but I have no idea how to "connect" both tables.
Write an UPDATE query that returns the StageID for the calculated values, something like:
UPDATE t1
SET t1.StageID =
(SELECT TOP 1 StageID
FROM [RANKING_TABLE] t2
WHERE t1.ArticlePoints + t1.PhotoPoints >= t2.MinimumPoints
ORDER BY t2.MinimumPoints DESC)
FROM [USER_TABLE] t1
So if the USER has 250 points in total, Beginner and Advanced would be achieved, using the TOP 1 and the ORDER BY t2.MinimumPoints DESC, would select the highest Stage.