SQLAlchemy.exc部分错误总结

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class ArgumentError(SQLAlchemyError):"""原文：Raised when an invalid or conflicting function argument is supplied.This error generally corresponds to construction time state errors.提供无效或冲突的函数参数时引发。此错误通常与施工时间状态错误相对应。实践：常见于创建实例的时候，参数传递不对索引发，如：非空字段，外键等"""class ObjectNotExecutableError(ArgumentError):   # 对象不可执行错误"""Raised when an object is passed to .execute() that can't be executed as SQL.当对象传递给.execute（）时引发作为SQL执行。"""class NoSuchModuleError(ArgumentError):   # 没有这样的模块"""Raised when a dynamically-loaded module (usually a database dialect)of a particular name cannot be located.当动态加载模块（通常是数据库方言）时引发无法找到特定名称的。"""class NoForeignKeysError(ArgumentError):   # 没有外键"""Raised when no foreign keys can be located between two selectablesduring a join.当两个可选择项之间没有外键时引发在加入时。"""class AmbiguousForeignKeysError(ArgumentError):   # 外键混乱"""Raised when more than one foreign key matching can be locatedbetween two selectables during a join.当可以找到多个外键匹配时引发在连接期间在两个可选择项之间。"""class IdentifierError(SQLAlchemyError):  # 标识符错误"""Raised when a schema name is beyond the max character limit当架构名称超过最大字符限制时引发"""class TimeoutError(SQLAlchemyError):  # 超时"""Raised when a connection pool times out on getting a connection."""class InvalidRequestError(SQLAlchemyError):   # 无效请求"""SQLAlchemy was asked to do something it can't do.This error generally corresponds to runtime state errors.SQLAlchemy被要求做一些它不能做的事情。此错误通常对应于运行时状态错误。"""class ResourceClosedError(InvalidRequestError):"""An operation was requested from a connection, cursor, or otherobject that's in a closed state.从连接、游标或其他对象请求操作处于关闭状态的对象。"""class NoSuchColumnError(KeyError, InvalidRequestError):"""A nonexistent column is requested from a ``RowProxy``."""class NoSuchTableError(InvalidRequestError):"""Table does not exist or is not visible to a connection."""

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SQLAlchemy.exc部分错误总结

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