Hi, I wanted to create a post series about cloning/duplicating database on the same or remote servers. There are so many options and combinations about this like rman duplicate database with/without target/source db connection, rman restore using backups, ASM to OS or OS to ASM, same server or remote server, OMF or regular file naming
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Pragma UDF & Deterministic
Hello everyone, I wanted to write about something simple and can improve the performance of your sql statements. Unfortunately, many database developers use too much plsql function in their SQL statements. I say too much because if you learn more about the SQL, you will use less plsql. SQL is very capable language to process
ORA-24244: invalid host or port for access control list (ACL) assignment
Hello everyone, So you wanted to migrate your ACLs to another database or you are trying to add a new acl entity but you got ORA-24244. There are many reasons for that error unfortunately. I wish Oracle provides us more detail about what is the error but I wanted to share what I have seen
Which Column has Changed in Every Row?
Hi, Edit: Thanks to Chris Saxon who is from asktom team, checked my code and warned me about a problem. Not to overload the PGA fetch_rows function only fetches 1024 rows at once so every row set chunk size is 1024. In this case for the 1025th row, previous row information is lost because fetch_rows
SQL Macro Part2 column_value = nvl(:param, column_value)
Hi, Since I am working on “SQL Macro”, I am keep testing things. so please see my previous post: http://mustafakalayci.me/2020/10/28/sql-macro-is-finally-here/ as mentioned in previous post, is it possible to get rid of column_value = nvl(:param, column_value) conditions? since they become a huge pain in big and complex queries. I provided a very cumbersome solution in