So i’m working on a university project but i have a problem that’s really starting to bother me. I am trying to update my database several times with different values, except that only the last value will be taken into account : they’re overwriting themselves. My code : And my SQL method is like this : So for example if
Tag: sql-update
How to update USING sum and subquery
I have a SQL Server table similar to this: InkitemNo CapacityUnit NewInk OldInk ReturnInk ProdQty Description UsedInk 204 Machine1 5 2 0 4000 Next ? 223 machine2 4 3 1 8000 NULL ? 204 Machine2 0 0 0 5000 Next ? 224 Machine2 4 0 2 3000 Next ? I’m trying to write a query with this formula: Example to
Update and renew data based on data in other tables
There are 3 tables student, course, and takes as following tot_cred column data in the student table now is assigned with random values (not correct), I want to perform the query that updates and renews those data based on the course’s grade each student has taken. For those students who received F grade will be excluded and those who didn’t
Update a a column in some specific items of a table, with values from a column in another table
I have 3 tables. I want to update all Image rows from table 1, with local image from table 3. Table 1 is liked with table 2 by ID. Table 2 and 3 are linked by itemRef. As an example of what I want: is that ID 1 from table 1, gets image A. Because ID from table 1, is
Update to replace specific value with another except when it already exists
I have a table with values like this: There’s also a UNIQUE constraint on both columns I want to change all ‘poo’ to ‘woo’, as long as it doesn’t violate the constraint, and then delete the remaining ‘poo’, in order to obtain this table: My attempts to far for the first step: Result: UNIQUE constraint failed: [..] Result: [..] 0
Postgres giving relation does not exist error for alias
Above query is working fine in MS Sql but showing this error when running it in postgres Answer In MS Sql Server it’s possible to update the CTE. In Postgresql you can link to a CTE for an update. For example: However, such update assumes that the id in that table is unique. But, to mark the newest duplicates it
When I update the same row in a table in SQL more than once, it gives an ORA-00001: unique constraint error
I am trying to update a row in a table in SQL back to back and am getting an error when running the second update statement. I’m getting an error in the second update statement. ORA-00001: unique constraint (ADMIN.JHIST_EMP_ID_ST_DATE_PK) violated ORA-06512: at “ADMIN.ADD_JOB_HISTORY”, line 10 ORA-06512: at “ADMIN.UPDATE_JOB_HISTORY”, line 2 ORA-04088: error during execution of trigger ‘ADMIN.UPDATE_JOB_HISTORY’ I was expecting
SQL UPDATE on with data from same table
I have a next situation with a table, Need to update rows from rows in same table, as you see here: TABLE ID SN FID 1 12345 1 2 1122 2 3 12345-RG NULL 4 1122-RG NULL I need to UPDATE row 3 from row 1 Column FID(Same SN, different ending only on the end -RG) Update row 4 FROM
How to select a row, lock it, update it, then select again?
I have a table with these 3 columns: task (string) status (string) date (datetime) I want to write a query that does the following: Selects the first row WHERE status != “In-Progress” Sorted by Date (oldest first), and Locks it – so other computers running this query concurrently can’t read it. Updates the Status column so status = “In-Progress”. Return
how to update and append values to array in google spanner
I have a column with data type Array(String) in spanner. How can I append value to an array for update queries I’m able to update the values using this command But the problem with this update is it overrides the previous values. I want to append these values to the ones that are already present. Is there any command that