Скачать или смотреть How to Achieve the Desired Output with Oracle 11g SQL Queries

Learn how to transform your Oracle 11g table data into the desired output format using SQL queries in this comprehensive guide.
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Transforming Oracle 11g Table Data with SQL

If you’re working with Oracle 11g and struggling with your table output format, you’re not alone. Many users encounter issues when trying to manipulate and display data in a desired format. In this guide, we will explore a solution to transform a given table structure into a more organized and clear format using SQL.

The Problem

You have a table in your Oracle 11g XE database that currently looks like the following:

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Your desired output format should look like this:

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The Solution

Let’s break down the solution into organized sections. In this implementation, we will use Common Table Expressions (CTEs) and SQL joins to achieve the desired output.

Step 1: Create an Initial CTE

The first step is to create a CTE that prepares the table layout. This includes defining columns and unifying the legacy ID.

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Step 2: Define Another CTE for Row Spanning

Next, we’ll create another CTE to handle the row span for the second column.

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Step 3: Main SQL Query

Finally, we will combine the results from both CTEs to generate the desired output format.

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Conclusion

By implementing the above SQL queries using CTEs, you can efficiently transform your Oracle 11g table data into a more organized output format. This method not only structures your data clearly but also enhances readability for any subsequent analysis.

Feel free to reach out for further clarifications or if you need additional assistance with your Oracle SQL queries!