Today I received a request from an application owner who wanted to know the size of all the CLOB and BLOB columns in all the non-system tables so that they have a good idea of the size involved for a migration. Tables with BLOB/CLOB columns The SQL to find the tables with the BLOB/CLOB columns … Continue reading Oracle: Find The Total Size Of All Of Your CLOB & BLOB Columns In All Tables
As an Oracle DBA, you are very likely to get requests somewhat like this: Create an account for Sam Hill. The privileges should look exactly like Rob Nixon. If you are not into automating everything, your first instinct would be to fire-up an IDE like Toad or SQL Developer and script out the source user, … Continue reading Oracle: Clone An User With PL/SQL – Tablespace Quotas, Role Grants/Default Role, Object Grants And System Grants
In an Oracle anonymous block based script, how many times do you run into situations where what needs to be done remains a constant but what that logic works with, keeps changing? Parameters are a great way to do it too but in the illustration below, we are going to use PL/SQL table type (collection). … Continue reading Oracle – Simple/Reusable Statement Runner Using PL/SQL Table Type (Collection)
If you are primarily a SQL Server developer and you are moving to Oracle, this is one of the nastiest surprises in store for you. You are so used to rolling back everything including DDL in SQL Server transactions but in Oracle, DDL inside transactions act as COMMIT. Fear not though, there are a ton … Continue reading Oracle Gotcha For The SQL Server Developer – DDL’s COMMIT Transactions Implicitly!