I have a temporary table #allocations
which has the following fields
DAllocationId DAllocationName FundCode DSplitTotal DDisabled DistAlloc AAllocationId AAllocationName ASplitTotal ADisabled
I have another table TRAN_POST_PTN which also has these columns along with other columns.
So for asplit id and dsplit id we just have the same column name which is "posting number" in TRAN_POST_PTN.
What i need to do is insert into my allocations table all the rows from TRAN_POST_PTN where the
posting_number is not in (select DAllocationId from #allocations)
and posting_number not in (select AAllocationId from #allocations)
I do not want to use Not in here.
Can some one please suggest me a better way of writing this query.
I tried writing it using union,but that did not work.
There are a couple alternatives to NOT IN. Here's one using NOT EXISTS:
SELECT fields
FROM TRAN_POST_PTN tpp
WHERE NOT EXISTS (
SELECT 1
FROM #allocations a
WHERE tpp.posting_number IN (a.DAllocationId, a.AAllocationId))
Another common way is to use LEFT JOIN with NULL checks, but I believe you'll see a better performance with NOT EXISTS.
SELECT fields
FROM TRAN_POST_PTN tpp
LEFT JOIN #allocations a ON tpp.posting_number = a.DAllocationId
OR tpp.posting_number = a.AAllocationId
WHERE a.DAllocationId IS NULL
Related
I am having some problem when trying to perform a SQLite query to get the records which does not exist from another table. Basically I have two database tables:
My exercise table stored all the exercises available whereas the bookedExercise table store the exercises booked by each users. What I am trying to do is, for example if the exercise does exist in the bookedExercise, it should be filtered out.
Here is the SQLite query which I used:
SELECT exercise.exerciseID, exercise.exerciseType, exercise.amout FROM exercise LEFT JOIN bookedExercise WHERE exercise.exerciseID = bookedExercise.exerciseID AND bookedExercise.exerciseID IS NULL
However, it returned me empty records. Any ideas?
Thanks in advance.
If you're fine with not using joins you could use
SELECT * FROM exercise WHERE exerciseID not in (SELECT exerciseID FROM bookedExercise)
When you are using LEFT JOIN, you must put the join condition into the ON clause:
SELECT exercise.exerciseID,
exercise.exerciseType,
exercise.amout
FROM exercise /* !! */
LEFT JOIN bookedExercise ON exercise.exerciseID = bookedExercise.exerciseID
WHERE bookedExercise.exerciseID IS NULL
Your SQL looked okay... I think the problem might be you have a datatype mismatch. You have exercise ID as an integer in one table and text in another.
Also, if you have huge data volumes, you may want to consider an anti-join:
select
e.*
from
exercise e
where not exists (
select 1
from bookedExercise be
where
e.excerciseId = be.exerciseID
)
-- edit --
On second glance, your SQL was not okay. You had your join condition in the where clause. This little change would fix your existing SQL:
SELECT exercise.excerciseId , exercise.exerciseType , exercise.amout
FROM exercise LEFT JOIN bookedExercise on
exercise.excerciseId = bookedExercise.exerciseID
WHERE bookedExercise.exerciseID IS NULL
I am trying to deduplicate a large table where values are present but broken into several rows.
For example:
Table 1: Client_Code,Account#, First and last names, address.
Table 2: Client_Code,Account#, First and last names, address, TAX_ID.
Now what I want to do may seem pretty obvious at this point.
I want my results to pull from Table 1 into a new table and the query to be "Select From Table 1 where client code and account# from table 1 match client code and account# from table 2." TAble 2 has all values populated, Table 1 has everyone except TAX ID.
The code i tried looked like this.
CREATE TABLE Dedupe_1 AS SELECT * FROM `TABLE 1`
WHERE `TABLE 1`.`Client_Code`=`TABLE 2`.`Client_Code`
AND
WHERE `TABLE 1`.`account#`=`TABLE 2`.`account#`
ORDER BY `TABLE 2`.`account#`
I keep getting a syntax error. I am very new to this programming language so I apologize if this question is hard to understand.
I was just under the impression that I could call to a field from another table by simply using the 'WHERE' statement.
I think you want to use an exists clause:
CREATE TABLE Dedupe_1 AS
SELECT *
FROM `TABLE 1` t1
WHERE EXISTS (select 1
from table2 t2
where t2.Client_Code = t1.Client_Code and t2.`account#` = t1.`account#`
);
You may want to use Join to connect two tables. You can make use of common column among two tables for Join statement. Common syntax goes like
SELECT table1.column1, table2.column 2 and as many you want in common table
FROM table1 name
INNER JOIN table2 name
ON table1.commoncolumn=table2.Common column;
You may learn more about joins here.
I am using the below query to get the customer detail. But it's not working please help me. I am new for SQL.
select cu.fld_cust_id,ord.* from test1 where fld_order_id ord in (select * from tbl_customer cu where cu.fld_status=1);
You can't select columns from subquery used in WHERE clause, becaused they are not joined to this query. You are just using value range returned from this subquery
Your subquery should return only one column here.
You should try something like this.
SELECT cu.fld_cust_id,ord.*
FROM test1
JOIN tbl_customer cu ON cu.fld_status=1 AND fld_order_id = cu.fld_cust_id
Not sure what's in your tbl_customer, but seems like you are matching the fld_order_id to *. You should match with the order_id in your customer table.
select cu.fld_cust_id,ord.*
from test1
where fld_order_id ord in (
select *ORDERID* from tbl_customer cu where cu.fld_status=1
);
In a query you also need to be aware that you can only see the fields in the current scope. So in the main query you only use FROM TEST1, therefore you can only see the fields from that table. ord.* and the use of cu will give an error. If you need other fields from that table use a JOIN. The TEST1 table should contain a foreign key that links to TBL_CUSTOMER, if not you need either a path using other other tables or redesign your database. If you have that foreign key, that's what you use around the IN operator:
select fld_cust_id from test1 where fld_cust_id in (select id from tbl_customer cu where cu.fld_status=1);
This is the table I'm working with:
I would like to identify only the ReviewIDs that have duplicate deduction IDs for different parameters.
For example, in the image above, ReviewID 114 has two different parameter IDs, but both records have the same deduction ID.
For my purposes, this record (ReviewID 114) has an error. There should not be two or more unique parameter IDs that have the same deduction ID for a single ReviewID.
I would like write a query to identify these types of records, but my SQL skills aren't there yet. Help?
Thanks!
Update 1: I'm using TSQL (SQL Server 2008) if that helps
Update 2: The output that I'm looking for would be the same as the image above, minus any records that do not match the criteria I've described.
Cheers!
SELECT * FROM table t1 INNER JOIN (
SELECT review_id, deduction_id FROM table
GROUP BY review_id, deduction_id
HAVING COUNT(parameter_id) > 1
) t2 ON t1.review_id = t2.review_id AND t1.deduction_id = t2.deduction_id;
http://www.sqlfiddle.com/#!3/d858f/3
If it is possible to have exact duplicates and that is ok, you can modify the HAVING clause to COUNT(DISTINCT parameter_id).
Select ReviewID, deduction_ID from Table
Group By ReviewID, deduction_ID
Having count(ReviewID) > 1
http://www.sqlfiddle.com/#!3/6e113/3 has an example
If I understand the criteria: For each combination of ReviewID and deduction_id you can have only one parameter_id and you want a query that produces a result without the ReviewIDs that break those rules (rather than identifying those rows that do). This will do that:
;WITH review_errors AS (
SELECT ReviewID
FROM test
GROUP BY ReviewID,deduction_ID
HAVING COUNT(DISTINCT parameter_id) > 1
)
SELECT t.*
FROM test t
LEFT JOIN review_errors r
ON t.ReviewID = r.ReviewID
WHERE r.ReviewID IS NULL
To explain: review_errors is a common table expression (think of it as a named sub-query that doesn't clutter up the main query). It selects the ReviewIDs that break the criteria. When you left join on it, it selects all rows from the left table regardless of whether they match the right table and only the rows from the right table that match the left table. Rows that do not match will have nulls in the columns for the right-hand table. By specifying WHERE r.ReviewID IS NULL you eliminate the rows from the left hand table that match the right hand table.
SQL Fiddle
I have a table in my database that has 1.1MM records. I have another table in my database that has about 2000 records under the field name, "NAME". What I want to do is do a search from Table 1 using the smaller table and pull the records where they match the smaller tables record. For example Table 1 has First Name, Last Name. Table 2 has Name, I want to find every record in Table 1 that contains any of Table 2 Names in either the first name field or the second name field. I tried just making an access query but my computer just froze. Any thoughts would be appreaciated.
have you considered the following:
Select Table1.FirstName, Table1.LastName
from Table1
where EXISTS(Select * from Table2 WHERE Name = Table1.FirstName)
or EXISTS(Select * from Table2 WHERE Name = Table1.LastName)
I have found before that on large tables this might work better than an inner join.
Be sure to create indexes on Table1.first_name, Table1.last_name, and Table2.name. They will dramatically speed up your query.
Edit: For Microsoft Access 2007, see CREATE INDEX.
See above previous notes about indexes, but I believe from your description, you want something like:
select table1.* from table1
inner join
table2 on (table1.first_name = table2.name OR table1.last_name = table2.name);
It should go something like this,
Select Table1.FirstName, Table1.LastName
from Table1
where Table1.FirstName IN (Select Distinct Name from Table2)
or Table1.LastName IN (Select Distinct Name from Table2)
And there are various other ways to run this same query, i would suggest you see execution plan for each of these queries to find out which one is the fastest. In addition creating indexes on the column which is used in a "where" condition will also speed up the query.
i agree with astander. based on my experience, using EXIST instead of IN is a lot faster.