Online Courses

Compare 125 online courses from Coursera, edX, Udemy & more — filter by subject, level, provider and price.

“query optimization” × Clear all

125 courses

MySQL From Zero

Pragmatic AI Labs MOOC / Non-credit

SQL Analytics: Aggregation, Subqueries & Query Optimization

SQL Analytics: Aggregation, Subqueries & Query Optimization

LearnKartS MOOC / Non-credit

DevOps and CI/CD for Data Engineering Performance

DevOps and CI/CD for Data Engineering Performance

Coursera MOOC / Non-credit

Microsoft 70-762 developing SQL Databases Practice Test

Microsoft 70-762 developing SQL Databases Practice Test

(Ken Cen出品)Generative AI第9部掌握 Llama-Index 開啟數據檢索新篇章

(Ken Cen出品)Generative AI第9部掌握 Llama-Index 開啟數據檢索新篇章

Database Indexing Preparation Practice Tests

Database Indexing Preparation Practice Tests

MOOC / Non-credit

SQL Masterclass: Beginner to Expert

SQL Masterclass: Beginner to Expert

SQL for Data Analytics

SQL for Data Analytics

【MySQL8対応】データベースをとことん扱ってみよう【初心者〜中級者対応】【わかりやすさ重視】【解説資料たっぷり】

【MySQL8対応】データベースをとことん扱ってみよう【初心者〜中級者対応】【わかりやすさ重視】【解説資料たっぷり】

[JUL-2026 UPDATED] - SnowProCore Snowflake - Practice Exams

[JUL-2026 UPDATED] - SnowProCore Snowflake - Practice Exams

MOOC / Non-credit

SQL Interview/Exam Questions With Details Explanation : 2025

SQL Interview/Exam Questions With Details Explanation : 2025

MOOC / Non-credit

Advanced SQL Mastery: Optimizing Queries for Large Datasets

Advanced SQL Mastery: Optimizing Queries for Large Datasets

GCP Certification Data Engineer :Mastering the Essentials

GCP Certification Data Engineer :Mastering the Essentials

Snowflake Snowpro Core: Practice Test for All

Snowflake Snowpro Core: Practice Test for All

MOOC / Non-credit

1Z0-184-25: Oracle AI Vector Search 2025 Certified Pro

1Z0-184-25: Oracle AI Vector Search 2025 Certified Pro

Complete Oracle 12c SQL Certification Course

Complete Oracle 12c SQL Certification Course

Practice tests Microsoft Azure Cosmos DB Developer DP-420

Practice tests Microsoft Azure Cosmos DB Developer DP-420

[JUL-2026 UPDATED] - SnowProCore Snowflake - Practice Exams

[JUL-2026 UPDATED] - SnowProCore Snowflake - Practice Exams

Snowflake SnowPro Advanced Data Engineer (DEA-C02)

Snowflake SnowPro Advanced Data Engineer (DEA-C02)

COF-C03 - Snowflake SnowPro Core

COF-C03 - Snowflake SnowPro Core

DP-300 Azure SQL Database Administrator Exam – Unofficial

DP-300 Azure SQL Database Administrator Exam – Unofficial

【最新!! 詳細解説】ServiceNOW CAD 模擬試験問題集

【最新!! 詳細解説】ServiceNOW CAD 模擬試験問題集

SnowPro Advanced Architect Practice Test 2025

SnowPro Advanced Architect Practice Test 2025

Snowflake SnowPro Core Certification (COF-C03) Practice Exam

Snowflake SnowPro Core Certification (COF-C03) Practice Exam