On a blog I’m coding I want admins to be able to edit a comment. This works just fine, but there’s a problem with writing a new comment because of two fields in the table that should be empty then. …
Can you perform more than operation in a T-SQL MERGE section?
I’ve been fairly successful with my attempts I need to identify and solidify the OUTPUT columns ( # thereof) and what part of the MERGE statement that #of columns truly correlates to. I am simply …
Using Python, how to return just one value instead of an entire row in an SQL query
I have a SQL database file which contains a multitude of columns, two of which are ‘GEO_ID’ and ‘MED_INCOME’. I am trying to retrieve just the ‘MED_INCOME’ column data using the associated ‘GEO_ID’. …
Setting commission for employees based on position
I just started to learn some sql and I am using oracle database 11g. The question I have is that I have a staff table where I am trying to update the commission for each staff based on the position of …
sort list by lastname then first
I am trying to sort a list generated by wordpress but a bit more custom. global $wpdb; $orderby = ” SUBSTRING_INDEX( {$wpdb->posts}.post_title, ‘ ‘, -1 ) ASC” In wordpress what this is …
How do I write a Django ORM query for the reverse relationship in a one-to-many relationship?
I’m using Django and Python 3.7. I have the following two models in my models.py file … class Article(models.Model): created_on = models.DateTimeField(default=datetime.now) … class …
SQL – Select column with certain value in it and other random values
Let me say i have a table called test with the following data +———+—————–+ | id | t_number | +———+—————–+ | 1 | 864291100247345 | | 2 | …
How to query list of objects with paramteres that might not be entered?
I’m trying to query list of objects filtered by parameters that might not get entered by the user at all. @Query(value = “SELECT * ” + “FROM project ” + “WHERE CASE WHEN (:location …
Prohibit users from updating a column if another column is null?
I have mytable which has 3 integer fields: id, status, project_id. I’ve told people that they should not progress status past 4 before assigning it a project_id value. Naturally people don’t listen …
Apache Calcite throws error when using COALESCE with untyped nulls only
When runnning SELECT COALESCE(NULL, NULL); on Apache Calcite I get an error which tells that ELSE clause or at least one THEN clause must be non-NULL This happens because COALESCE function is transformed to CASE expression and the latter is validated for whether at least one THEN or ELSE operand is not null. …