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    Added Overview of Oracle architecture and performance tuning. Part 2.

    CHAPTER 6. "Hints" and CHAPTER 7. "Reading execution plan" have been added to Overview of Oracle architecture and performance tuning. Part 2.

    Category: News
    Last Updated: 14 December 2024
    Hits: 192

    Website updated

    Website updated (security patches, bug fixes, etc.).

    Category: News
    Last Updated: 07 December 2024
    Hits: 190

    New chapter added to Overview of Oracle architecture and performance tuning. Part 1.

    CHAPTER 5. "Join methods and types" have been added to Overview of Oracle architecture and performance tuning. Part 1.

    Category: News
    Last Updated: 01 October 2024
    Hits: 567

    Added new info to Overview of Oracle architecture and performance tuning. Part 1.

    CHAPTER 3. "Tuning. Statistics. Execution plan." and CHAPTER 4. "Table and index scan" have been added to Overview of Oracle architecture and performance tuning. Part 1.

    Category: News
    Last Updated: 21 September 2024
    Hits: 591

    New overview about Oracle architecture and performance tuning. Part1.

    Short overview about most popular topics as "task-answer" format:

    Overview of Oracle architecture and performance tuning. Part 1.

    Category: News
    Last Updated: 13 September 2024
    Hits: 632

    Minor updates for Oracle articles

    All Oracle articles from https://ddanil/index.php/programming/sql have been updated.

    New information has been added and some errors have been fixed.

    Category: News
    Last Updated: 07 September 2024
    Hits: 264

    Website updated

    Website updated (new PHP version, security patches, bug fixes, etc.).

    Category: News
    Last Updated: 31 August 2024
    Hits: 248

    Minor update for all Oracle articles

    Added to Oracle articles: some new info (difference between NVL and COALESCE, etc.), fixed errors, ... To Overview of group, analytical, and hierarchical queries added new functions (FIRST, LAST, NTILE).

    Category: News
    Last Updated: 13 March 2024
    Hits: 259

    Added overview about group, analytical, and hierarchical queries

    In SQL added Overview of group, analytical, and hierarchical queries.

    Some examples helps understand it quickly.

    Try to solve it.

    Category: News
    Last Updated: 08 August 2022
    Hits: 312

    Site description

    Welcome to new version of ddanil.com

    Imroved style and perfomance.

    Now site have topics about:

    1) Training examples for Oracle exams 1z0-071, 1z0-149 and some materials about Oracle Database;

    2) VBA connection info to Oracle Database and some materials about VBA and Excel;

    3) Info about accounting entries and rules with examples (according to Federal Law about Accounting in Russian Federation №402).

    Category: News
    Last Updated: 06 August 2022
    Hits: 277

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    • New chapter added to Overview of Oracle architecture and performance tuning. Part 1.
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    • Overview of Oracle group, analytical and hierarchical queries

    Latest Posts

    • Added Overview of Oracle architecture and performance tuning. Part 2.
    • Website updated
    • New chapter added to Overview of Oracle architecture and performance tuning. Part 1.
    • Added new info to Overview of Oracle architecture and performance tuning. Part 1.
    • New overview about Oracle architecture and performance tuning. Part1.
    • Minor updates for Oracle articles
    • Website updated
    • Minor update for all Oracle articles
    • Added overview about group, analytical, and hierarchical queries
    • Site description

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