What is Page?

Both on disk and in memory, database data is stored as a consecutive byte blocks with same size. Each block is called a page. Normal page size are 4KB, 8KB, 16KB bytes. Data I/O operation is performed on the unit of pages. Most of the time, database can't hold all data in the memory, thus it employs a buffer pool to maintain a list of active pages based on LRU. The buffer pool swaps the pages continuously based on the access pattern, a process known as page-in, page-out.

Database schema migration and version control, Database CI/CD, and DevOps for developers and DBAs

Bytebase is an open source, web-based database schema change and version control tool for teams. It offers a web-based collaboration workspace to help DBAs and Developers manage the lifecycle of application database schemas.

  • MySQL
  • PostgreSQL
  • Snowflake
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  • ClickHouse
  • TiDB
  • OceanBase
  • Spanner
  • MariaDB
  • GitLab
  • GitHub
  • Bitbucket
  • Azure DevOps
  • Terraform


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