An easy to use interface for Oracle Compression Advisor (DBMS_COMPRESSION). The COMPRESSION_ADVISOR package invokes Oracle Compression Advisor to gather compression-related information within a ...

Solutions to LeetCode's SQL 50 Study Plan, organized by SQL concept and difficulty. Each solution includes the approach, alternative queries where interesting, and MySQL dialect notes. Actively in ...

Hello there! 👋 I'm Luca, a BI Developer with a passion for all things data, Proficient in Python, SQL and Power BI ...

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects simply to a non-technical, business audience. Over… SQL is a programming ...

MySQL and PostgreSQL are two of the most used open source SQL databases, and both fulfill the role of a general-purpose database well. How do you choose which one to use for a project? Let's look at ...

In the world of relational databases, managing hierarchical data can be challenging. However, Oracle SQL's recursive queries provide a powerful tool to simplify this task. In this blog post, we'll ...

As data analytics has become an important application for modern data management systems, a new category of data management system has appeared recently: the scalable linear algebra system. We argue ...

859 859 859 TABLE ACCESS BY INDEX ROWID ICX_CAT_ITEMS_CTX_HDRS_TLP (cr=1792 pr=0 pw=0 time=8976 us cost=3 size=229 card=1) 859 859 859 INDEX UNIQUE SCAN ICX_CAT_ITEMS_CTX_HDRS_TLP_PK (cr=933 pr=0 pw=0 ...

Hierarchical query is a type of SQL query that is commonly leveraged to produce meaningful results from hierarchical data. Hierarchical data is defined as a set of data items that are related to each ...

12 hard parse (sharing criteria) elapsed time 96.27 13 hard parse (bind mismatch) elapsed time 2.44 14 failed parse elapsed time 8.17 15 failed parse (out of shared memory) elapsed time 0 16 PL/SQL ...