Removing duplicate rows in PostgreSQL, Oracle and SQLite
Sometimes you need to remove nasty duplicate on a table, based on a subset of the column. On every big database there
Sometimes you need to remove nasty duplicate on a table, based on a subset of the column. On every big database there
On some environment, on some customers, Oracle connections are drop after some idle time (i.e. 2 minutes). I have found a small
Okey, you know Oracle. A very good database, a very old database, a very solid rock. Not famous for its error messages.
I stumbled upon a very brain-f**k error on Oracle 10g on these days. Context: the following query [sql]SELECT * FROM ( SELECT
Come evitare iniezione SQL: lato SQL Server (SP_EXECUTESQL) In generale va evitato nel modo più assoluto la scrittura di query sql diamiche.