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  • Style guide

    289 2022-06-23 《Deno v1.23.0 Manual》
    Deno Style Guide Copyright Headers Use underscores, not dashes in filenames. Add tests for new features. TODO Comments Meta-programming is discouraged. Including the use of Pro...
  • Style guide

    247 2022-06-23 《Deno v1.21.1 Manual》
    Deno Style Guide Copyright Headers Use underscores, not dashes in filenames. Add tests for new features. TODO Comments Meta-programming is discouraged. Including the use of Pro...
  • Optimizing storage

    Optimizing storage Available persistent storage options Recommended configurable storage technology Specific application storage recommendations Registry Scaled registry Metrics...
  • DESCRIBE 语句

    DESCRIBE 语句 执行 DESCRIBE 语句 语法 DESCRIBE 语句 DESCRIBE 语句用来描述一张表或者视图的 Schema。 执行 DESCRIBE 语句 DESCRIBE 语句可以通过 TableEnvironment 的 executeSql() 执行。 若 DESCRIBE 操作执行成功,executeSql...
  • Sanic Support

    Sanic Support Work with Sanic Sanic Support Sanic Support THIS IS A WIP Work with Sanic Using the Sanic extension, the request handler acquires a lazy connection on each ...
  • 字符串运算符

    字符串运算符 示例 + CONTAINS (NOT) IN (NOT) STARTS WITH (NOT) ENDS WITH 正则表达式 字符串运算符 Nebula Graph支持使用字符串运算符进行连接、搜索、匹配运算。支持的运算符如下。 名称 说明 + 连接字符串。 CONTAINS 在字符串中执行搜索。 (NOT) I...
  • DESCRIBE Statements

    DESCRIBE Statements Run a DESCRIBE statement Syntax DESCRIBE Statements DESCRIBE statements are used to describe the schema of a table or a view. Run a DESCRIBE statement J...
  • Query operators

    Query operators Query operators The following types of comparisons are supported by peewee: Comparison Meaning == x equals y < x is less than y <= x is less than or equal...
  • Zero-downtime migrations

    Zero-downtime PostgreSQL migrations Avoid long-running transactions Split long-running queries into smaller batches Update rows in a consistent order Don’t add columns with NOT ...
  • TRUNCATE

    Synopsis Description Parameters Notes Examples Compatibility See Also Empties a table of all rows. Note Greenplum Database does not enforce referential integrity syntax ...