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Sample AWS Lambda Function to Monitor Oracle Databases
I wrote a very simple AWS Lambda function to demonstrate how to connect an Oracle database, gather the tablespace usage information, and send these metrics to CloudWatch. First, I wrote this lambda...
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Amazon QLDB and the Missing Command Line Client
Amazon Quantum Ledger Database is is a fully managed ledger database which tracks all changes of user data and maintains a verifiable history of changes over time. It was announced at AWS re:Invent...
View ArticleHow To Find Storage Occupied by Each Internal Stage in Snowflake?
The account usage view has two views related to stages: STAGES and STAGE_STORAGE_USAGE_HISTORY. The STAGES view helps list all the stages defined in your account but does not show how much storage each...
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How to Disable Caching in Snowflake for Testing Query Performance?
It’s a common question to ask how to disable caching in Snowflake for testing. Although it’s a very straightforward question, the answer is a bit complicated, and we need to understand the cache layers...
View ArticleHow To Recover The Weblogic Administrator Password Of The Enterprise Manager?
As you know, Weblogic is a part of the Enterprise Manager Cloud Control environment, and it’s automatically installed and configured by the EM installer. The Enterprise Manager asks you to enter a...
View ArticleOracle Enterprise Manager Cloud Control: Write Powerful Scripts With EMCLI
Last week, I attended the Oracle Open World and gave a presentation about writing scripts with EMCLI. If you’re unfamiliar with EMCLI, it’s the command line interface for Oracle Enterprise Manager...
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How to Build A Cassandra Cluster On Docker?
In this blog post, I’ll show how to build a three-node Cassandra cluster on Docker for testing. I’ll use official Cassandra images instead of creating my images, so all processes will take only a few...
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PySpark Examples
This post contains some sample PySpark scripts. During my “Spark with Python” presentation, I said I would share example codes (with detailed explanations). I posted them separately earlier but decided...
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The Future of Data Warehousing: Snowflake vs. Traditional Solutions
When it comes to managing and analyzing large amounts of data, traditional data warehouses have been the go-to solution for decades. But in recent years, a new challenger has emerged: Snowflake. So,...
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Boosting Performance in Snowflake: The Power of Automatic Clustering
When it comes to managing large data sets in Snowflake, Automatic Clustering is one of the key features that can help improve performance. But before we dive into how it works, let’s first take a look...
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