Highlight Hints in SQL Developer
Introduction In this blog post I explain how you can configure your SQL Developer to highlight hints and distinguish them from ordinary comments. The SQL Language Reference for Oracle Database 19c defines hints as follows: Hints are comments in a SQL statement that pass instructions…
TNS chaos
I like to have my Oracle Net config consistent and without surprises. So for me it is a best practice to have ONE central TNS_ADMIN directory on the database server, which is set in all my shells. But a lot of processes might ignore that…
Formatting SQL Code Blocks in Markdown Files
Introduction Everything Changes. Our Trivadis SQL & PL/SQL Coding Guidelines are no exceptions. We plan to change rule #1 of our coding styles. From “Keywords are written uppercase, names are written in lowercase.” to “Keywords and names are written in lowercase.“. We have 103 Markdown…
Always Free Autonomous JSON Database?
Introduction Oracle just released the Autonomous JSON Database (AJD). This is a special version of the Autonomous Transaction Processing (ATP) database focussing on managing JSON documents via Simple Oracle Document Access (SODA) and SQL. Beda Hammerschmidt shows in this blog post how you can use…
Script to check Data Guard status from SQL
In a previous blog post I have explained how to get the basic configuration from x$drc and display something like: OBJECT_ID DATABASE INTENDED_STATE CONNECT_STRING ENABLED ROLE RECEIVE_FROM SHIP_TO FSFOVALIDITY STATUS ——— ————– —————– —————————- ——- ——– ———— ————– ———— ——- 16842752 toolcdb1_site1 READ-WRITE-XPTON newbox01:1521/TOOLCDB1_SITE1 YES…
Formatting SQL Scripts in a Directory Tree with SQLcl
Introduction Oracle’s SQL Developer can format code in any worksheet and PL/SQL editor. The formatter is highly configurable and the default formatting results are becoming better with every version. Oracle’s SQLcl is a command-line tool. It’s a stripped down version of SQL Developer and known…
Oracle 19c solves ORA-00026 when killing PDB sessions
Oracle Multitenant was a big architectural change for Oracle Database. I guess it was not so easy to introduce it to such a complex system. Unsurprisingly, there were some side effects introduced, but Oracle works hard to correct them. One example is ORA-00026: missing or…
Oracle Critical Patch Update Juli 2020 – Statistiken und Grafiken
Mit 443 Patches im Juli-CPU hat die Gesamtzahl der Patches in den Oracle Critical Patch Updates ein neues Allzeit-Hoch erreicht. Diese Patches verteilen sich auf die gesamte Produktpalette von Oracle und da auch die Anzahl der betroffenen Produkte mit 136 ein neues Maximum erreicht hat,…
Preplugin Backups and the Missing Piece
Subheading 1: Preplugin Backups for non-CDB to PDB Conversions and the RMAN-06054 Subheading 2: PrePlugin Backups and the need for “Trick 17” The following is coming from a customer project. Imagine you have a huge non-CDB database, assume some terabytes. And you want to bring…
Getting the most out of Oracle Database Express Edition (XE) 18c
Express Edition is a nice starter database which comes for free and does not need a license. Well, you do not get support for it either. There where XE databases in 10g and in 11g, but in this blog post I look into current XE…
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