I have a database table (mytable) with 2 columns x and y as shown below, from which I intend to extract rows with matching diagonal pairs of (x,y) and (y,x) e.g., 4 21 and 21 4 I have tried the accepted code on stackoverflow here (enter link description here) on my mytable which gives me the expected results on Oracle
Tag: database
Copy data on parent and child table
I have two database tables. What I need to do is to copy specific data from one storage to another, but also keep the mapping to the photos. First part I can do easily writing but after that newly inserted items does not have photos. Note, that document_id field is unique for not copied items. Answer Assuming id columns are
list records which do not meet a certain criteria in Oracle SQL
I got 3 tables please see the below. Currently, a car has a unique tag assigned to them. I have employees with multiple roles. There are only 3 roles. 1 = Surveyor, 2 = Admin or 3 = Engineer. A car can be assigned to more than one employee. One car can have a surveyor, admin and engineer using it.
Update Multiple Values in a SQL query based on row values
Is there a possible way only use SQL Update query to update July Data to August data? E.g. The Value of B in July should be updated to 12. Dimension Key is the primary key and Name is the “durable” key. CURSOR is allowed to use but not preferred. Answer You must join the table to itself to set different
SQLite: how to exclude records in a database with join tables?
I have a database with a schema similar to: Say they have the following data in them: Artists: artist_id artist_name 1 Bob 2 Shawn Songs: song_id song_name 1 one song 2 another song song_artist: song artist 1 1 1 2 2 2 Here, both Bob and Shawn are involved in one song, and only Shawn is involved in another song.
Restrict “subcategory” based on other “category” column
I’m creating a SQLite database where I have 3 tables: transactions, categories, sub-categories in the transactions table, there is a column “category” with a foreign key to the categories table in the sub-categories table, there is column “parent-category” with a foreign key to the categories table Now, how can I ensure that the sub-category that I fill in with transactions
Creating a VIEW to remove duplicates from table based on max date
I have a table that appends data each day and records the imported date, however it appends duplicates. My end goal here is to remove the duplicates based on the lowest imported column date. Here would be the initial state of that table: TABLE CLIENTS Name Surname Imported Bob John 18-07-2022 Marta White 18-07-2022 Ryan Max 18-07-2022 Bob John 20-07-2022
What do you call the . syntax in SQL?
In many databases, when writing a SELECT query, you can provide the database name along with the table name in order to resolve any ambiguity the database might encounter in case there are multiple databases with the same table names. For example, let’s say the user currently logged into SQL Server has SELECT privileges on databases DB1 and DB2, and
Create a new double-field based on the existing string-filed
There is an SQL query forming a table. It is necessary to form another double-number field based on one of the string fields in the table. Values of the original string field (BRLOADSTA0): Values of the resulting double-field (BRLOADSTA9): The request which I’ve create: Full snippet: Thanks in advance even for trying to help 🙂 Answer Could you tell us
Update query with join and where clause
I’m currently confused with a (fairly easy) update statement that I’m trying to execute on a table. The two tables are as such: Customer table has the columns Loan table has the columns I would like to update the passworddisabled attribute to true if they are registered via a specific cash register. I’ve made use of the distinct command because