This question already has answers here:
MSAccess Binding a Pulldown combobox to a sub-form
(1 answer)
Setting Filter in Subform
(2 answers)
Closed 6 months ago.
I have two tables: tbl_Volumes and tblContracts with VolumeID being a primary key in tbl_Volumes and a foreign key in tblContracts. They have a 1 to many relationship. I would like that the default VolumeID is dependent on the Volume selected from the main form as shown here. As you can see the ID is being shown on the second row not on the one currently being updated. I have set a default value like this:
=[Forms]![frm_VallettaShops]![cmbVolume]
How can I make it show on the currently inputted row?
Related
This question already has answers here:
How do I alter the position of a column in a PostgreSQL database table?
(10 answers)
Change column order in table of postgres
(1 answer)
How to change the position of column in postgresql without dumping
(1 answer)
Closed 2 years ago.
When a new column is added to a current table, this appears in the last column. eg:
added AGE columns to Students table
SELECT * FROM Students; "would show the AGE column right at the end.
Question: is it possible to change the order of these columns when such commands are executed?
If you have an existing table, you could create a VIEW with the columns reorganized, then of course, you could also type out the columns. You could also create a new table.
This question already has answers here:
oracle constraints datatype
(2 answers)
Closed 2 years ago.
I am making a naive ratings platform db and I want to restrict a rating to be whole numbers from 1 to 5. To clarify I do not want to round or truncate, I want it to show a constraint violation if anything except 1,2,3,4,5 is entered.
The data type I'm using is smallint for rating. If I input 2.7, say, it truncates to 2 and proceeds to add the relation instance to the table. Which I don't want. How can I add a constraint to prevent this?
This is what the CHECK keyword is for (https://www.w3schools.com/sql/sql_check.asp)
If you had a table
CREATE TABLE Reviews (
Rating smallint CHECK (Rating IN (1,2,3,4,5)
);
This question already has answers here:
How to get the identity of an inserted row?
(15 answers)
Closed 5 years ago.
Here's what I'm trying to do: I add a record to the table. This record receives its unique ID number (identity). Then I want to use this ID in my code. How can I find out which ID number has just received a newly added record in my SQL Server database table?
Add an output parameter to your insert statement and return scope_identity(). If this isn't sufficient just search my answer, it will be in here a bunch.
This question already has answers here:
Insert distinct data into Combobox List
(2 answers)
Closed 8 years ago.
I just want to ask if how could i insert distinct values created by my query into a combobox?. I have an employee database that consist of 100 records and 5 different departments.
For the RowSource of your combo box, just add the word "DISTINCT" to your SQL string.
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Entering data in a table using a text box in a form
This question is similar to my last but in this case I want to be able to remove certain amounts from a table using a text box in a form.
Same scenario, the user inputs the data they want to remove from the table.
For example;
The user has taken out 15 MEC-0004 from stock and wants to update the table. They open the (Stock In/Out) form, select the part (using a combo box) and then alter the amount in the table by typing in 15 into the text box and pressing save or enter.
The SQL code for the last question is something like this:
UPDATE table_to_update
SET column_to_update=value_to_enter
WHERE criteria_column=criteria_value
I could also try VBA if someone pointed me in the right direction
Thanks
You can reference the value itself in the set clause. So a query to change the amount of stock by a relative value would look like:
UPDATE stock_table
SET amount = amount - #Amount
WHERE stock_id = #StockId