spot7.org logo
Home PHP C# C++ Android Java Javascript Python IOS SQL HTML Categories

Update query to fix incorrect references between two tables


There are two parts to this. One is getting the right records to update. I think you can do this with in with a subquery (or using exists). The other is the update. I believe the following will work in SQL Server and Oracle and probably Firebird:

update allocations a
    set task_id = (select min(t.task_id)
                   from task t
                   where t.group_id = a.task_id
and
                         t.planttype = 0
                  )
    where a.task_id in (select t.task_id from task
t where t.planttype = 1);

Categories : SQL

Related to : Update query to fix incorrect references between two tables
Update Query with INNER JOIN between tables?
You have got the format of an update query with a join in it slightly wrong. Try this instead UPDATE p SET Mail_Status = 'Sent' FROM tbl_plan p INNER JOIN tbl_Assignment a ON a.Plan_ID = p.Plan_ID WHERE (DATEDIFF(dd, { fn NOW() }, Date) = 2) AND (Mail_Status IS NULL)

Categories : C#
In sql, can you join to a select statement that references the outer tables in other joins?
How about a CTE approach: ;WITH CTE AS ( SELECT Id, PrimaryKey, ROW_NUMBER() OVER (PARTITION BY Id, ORDER BY Primarykey Desc) AS RN FROM Z ) SELECT X FROM Y LEFT JOIN CTE ON CTE.ID = Y.ID WHERE CTE.RN = 1

Categories : SQL
Remove redundant rows and update foreign references
The below query will keep the latest records for primaryId, secondaryId, employeeId,employeeName combination with mycte as ( select primaryId, secondaryId, employeeId,employeeName,min(timestamp) as mntmstp from tbl group by primaryId, secondaryId, employeeId,employeeName )delete from mycte

Categories : SQL
MySQL Update with derived tables and ORDER BY
You can always use stored procedures or functions: declare a stored function: DELIMITER // CREATE FUNCTION fillGap( gapID INT, verID INT ) RETURNS VARCHAR(255) BEGIN DECLARE gapValue VARCHAR(255); -- gets the value SELECT var0 FROM x1 WHERE id = gapID AND t <= verID AND var0 IS NOT NULL ORDER BY t DESC LIMIT 1 INTO gapValue; RETURN gapValue; END // DELIMITER ; Then

Categories : Mysql
Prototypical inheritance and function references as applied to function references/scopes
I think it's the way you set the closure: function createBound(){ var fn = function(){console.log('this is:',this);} ,i = -1//ret items are set using the value i inside createBound //by the time we call the function the value of i is 2 ,ret = []; for(i = 0; i < 2; i++){ ret.push(function(){ console.log('i is:',i);//says 2 every time fn.call({hello:'world'}); });

Categories : Javascript
Recently Add
Use REGEXP_REPLACE to replace variable number of characters with same number of constant characters
How to subtract a data with nano-second in a same group
listagg alternative in Oracle
How to join 3 tables to a single table in SQL
Postgresql: Trying to Understand the Information Schema Table Constraints Info for a NOT NULL Contstraint
Data Frame in R use like SQL, possibly using sqldf()
How can I group by a table by the date?
Query slows down in Conditional IF
Getting the daily sales report given the date
Retrieve rows with unique values in a column
case sensitive sql search in vb.net
Oracle multi dimensional query
Update column when datediff is greater then other column in the same table
add value from different tables and insert total value into another table
How to prevent transaction locking in sql server for all the connections?
Check the query efficiency
how can I run this select statement inside a select statement without any problems?
Add amount once on duplicate entries
SQL Server 2012 - Unique Priority Column
Query: employees who do not have the same name
Trigger to not allow a member to rent if unpaid balance exceeds $50
Anyway way to change this Oracle SQL statment to use regs?
If you set a field name as an Alias, can you utilize that name within SQL code?
Increment next month with dayOfTheMonth SQL sybase
Update Table Set From is not working as expected
How do I find one matching strings in two txt files
SQL help needed (oracle application express)
How to Roll Up Weekending Data in SQL
How do you call a variable (that is a list of values) in a conditional statement?
Oracle INSTR backward in Oracle SQL
© Copyright 2017 spot7.org Publishing Limited. All rights reserved.