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Tag: sql

Combine rows by consecutive timestamp

I have an input table as below: name time price one 2022-11-22 19:00:00 UTC 12 one 2022-11-23 7:00:00 UTC 24 one 2022-11-23 19:00:00 UTC 10 one 2022-11-24 7:00:00 UTC 20 My expected output is: name time price one 2022-11-22 36 one 2022-11-23 30 Explanation: I have to group-by 2 consecutive timestamps, the prev date 19:00:00 UTC and the next date

how join laravel tables to get non intersected data

in my Laravel app I have 3 tables : users, documents and type_documents, the user have multiple documents and document have one type_document I want select the types that are not used in documents table for the current user with eloquent I try with this, but it give me the used type_documents : I use Laravel version 8 Answer Have

Update statement with inner join on Oracle ORA-01427

ORA-01427: single-row subquery returns more than one row ORA-06512: at “SYS.DBMS_SQL”, line 1721 I need to do update with inner join in ORACLE Answer The script you provided above is going to update all rows in the table because you do not have a where clause. If you really want to update all rows in the table, then this should

SQL: Flattening multiple rows in ugly data

I’m working on a fairly odd scenario in which I’ve got to compensate for a client’s database that isn’t very well-ordered. The data (example below) concerns some products that have a main serial number (serial) and between 0 and 4 additional alternate serials (alt_serial). Unfortunately, neither of these columns is a primary key, and each alternate serial number produces an

Alter Table Foreign Key

I’m trying to add barista_grade_id to the baristas table as a foreign key and I’ve looked every where on what syntax to use and it seems to be unanimous that this is the correct way. I did it before this and it worked. but because of some mistakes I deleted it and redo it again, but for whatever reason it

How to add ‘all’ CASE when group by CASES in SQL

I have a query like this: Which gives the result: How can I add a row for ‘all’ requests in CASES? If we add a when sp.provider=’prv1′ with no more detailed condition then all cases become one ‘all’ case because and other cases are ignored. Answer You can’t do that inside the CASE, as it behaves like a series of

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