“sql”

MariaDB-specific SQL dialect knowledge — correctness pitfalls (NULL/GROUP BY/collation semantics), performance (optimizer, indexes, EXPLAIN reading)…

SQL that stays fast as data grows — query shape (join fan-out, paginate-first, bounded scans), ORM and query-builder landmines, index and migration safety…

Write correct, performant SQL across all major data warehouse dialects (Snowflake, BigQuery, Databricks, PostgreSQL, etc.).

自然语言生成 SQL 并演示执行；演示版仅打印 SQL，不连接真实数据库

Generate the code the SQL migration manifest decided — ScalarDB SQL, schema, fetch-and-H2 plans, Core API interface and application-side skeletons — as a…

Apply sql queries in reproducible local data workflows with version-aware APIs, explicit assumptions, and validation.

Review SQL files or snippets for correctness, safety, data assumptions, portability, and maintainability without executing against production.

Quick reference for common SQL patterns, CTEs, window functions, and indexing strategies.

Provides BigQuery SQL query optimization techniques, execution best practices, and performance tuning rules for high-efficiency querying.

SQL query style rules for readable and safe database changes.

Master modern SQL with cloud-native databases, OLTP/OLAP optimization, and advanced query techniques.

This skill should be used when the user asks to "test for SQL injection vulnerabilities", "perform SQLi attacks", "bypass authentication using SQL injection"…

**Required reading before writing or running any SQL.** Patterns for Snowflake query performance and chain-specific pitfalls.

Universal SQL performance optimization guidance for query tuning, indexing, execution plans, pagination, batching, and database performance analysis.

Azure Resource Manager SDK for Azure SQL in .NET.

Paste a SQL query and get a plain English explanation of what it does.

Flujo para ejecutar consultas SQL offline con errores en español

Translates SQL queries, DDL schemas, and stored procedures from legacy database dialects (Teradata, Oracle, Redshift, Snowflake, SparkSQL, HiveQL) to BigQuery…

SQL 优化分析技能。分析慢查询、N+1 问题、缺失索引等数据库性能问题，输出优化建议和改写后的 SQL。适用于后端工程师处理数据库性能问题、架构师进行数据库评审。

Use when generating one reviewable DBAPI API bundle from SQL or from a requirement already converted into SQL or View SQL.

Write, optimize, and explain SQL queries and database design

Databricks SQL (DBSQL) advanced features and SQL warehouse capabilities.

Use when asked to format, prettify, or reindent a SQL query, to lay it out with uppercase keywords, one clause per line, and consistent indentation.

为后端开发和数据库设计人员生成建表 DDL SQL 语句。当用户需要建表、设计表结构、生成 CREATE TABLE 语句，或描述业务实体要求输出 SQL 时，必须使用此 skill。支持 ClickHouse 和 MySQL 两种数据库，输出带中文注释的规范 DDL，并按模块/实体组织到 @docs/sql…