I'm building system, in which I decided to use GUIDs as primary keys in many tables. I took this decision in order to be able to develop tool for integration te
I'm trying to understand how Oracle processes SQL's to study ways of optimizing complex SQL's. Consider the test function below: CREATE OR REPLACE FUNCTION FCN_
I found something weird while executing query today and i want to know how this happens. Below is my query: select sum(price) as total from table_a where test
I´m with an issue where hibernate generates the following query on an existing view. select count(proclistvw0_.proc_id) as col_0_0_ from proc_list_vw
I'm trying to run the following query but it keeps throwing this error after it keeps running for around 1 to 2 hours An internal error occurred and the reques
I have two tables exchange_rate (100 Thousand Rows) and paid_date_t (9 million rows) with below structure. "exchange_rate"
I'm trying to update two columns in an archaic Oracle database, but the query simply doesn't finish and nothing is updated. Any ideas to improve the query or so
I am using PostgreSQL 13 and has intermediate level experience with PostgreSQL. I have a table named tbl_employee. it stores employee details for number of cust
Update on 2022-05-15 After running vacuum analyze, the query plans are below. For A query Nested Loop Left Join (cost=45913.11..496597.16 rows=10 width=128) (a
I am trying to fetch 1000 rows using the Hibernate createNativeQuery. The query contains two joins. When I execute the same in SQL developer I see that response
Using sys.dm_os_wait_stats I have identified what I believe is a locking problem wait type waittime pct running ptc LCK_M_RS_S 2238.54 22.14