Question

我想在MySql中转换以下内容：

`DROP TABLE IF EXISTS `concepts_snapshot`;
CREATE TABLE IF NOT EXISTS `concepts_snapshot` (
  `id` bigint(18) NOT NULL,
  `effectivetime` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
  `active` int(1) NOT NULL,
  `moduleid` bigint(18) NOT NULL,
  `definitionstatusid` bigint(18) NOT NULL,
  PRIMARY KEY  (`id`,`effectivetime`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

DROP TABLE IF EXISTS `descriptions_snapshot`;
CREATE TABLE IF NOT EXISTS `descriptions_snapshot` (
  `id` bigint(18) NOT NULL,
  `effectivetime` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
  `active` int(1) NOT NULL,
  `moduleid` bigint(18) NOT NULL,
  `conceptid` bigint(18) NOT NULL,
  `languagecode` varchar(10) collate utf8_unicode_ci NOT NULL,
  `typeid` bigint(18) NOT NULL,
  `term` varchar(2048) collate utf8_unicode_ci NOT NULL,
  `casesignificanceid` bigint(18) NOT NULL,
  PRIMARY KEY  (`id`,`effectivetime`),
  CONSTRAINT FOREIGN KEY (conceptid) REFERENCES concepts_snapshot(id) ON DELETE CASCADE,
  CONSTRAINT FOREIGN KEY (moduleid) REFERENCES concepts_snapshot(id) ON DELETE CASCADE,
  CONSTRAINT FOREIGN KEY (typeid) REFERENCES concepts_snapshot(id) ON DELETE CASCADE
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;`

到MS Sql Server。到目前为止，我有以下内容：

DROP TABLE IF EXISTS [concepts_snapshot]
GO

CREATE TABLE [concepts_snapshot] (
  [id] bigint NOT NULL,
  [effectivetime] datetimeoffset NOT NULL default CURRENT_TIMESTAMP,
  [active] int NOT NULL,
  [moduleid] bigint NOT NULL,
  [definitionstatusid] bigint NOT NULL,
  CONSTRAINT PK_ConceptsSnapshot PRIMARY KEY ([id], [effectivetime])
)
GO

DROP TABLE IF EXISTS [descriptions_snapshot]
GO

CREATE TABLE [descriptions_snapshot] (
  [id] bigint NOT NULL,
  [effectivetime] datetimeoffset NOT NULL default CURRENT_TIMESTAMP, 
  [active] int NOT NULL,
  [moduleid] bigint NOT NULL,
  [conceptid] bigint NOT NULL,
  [languagecode] nvarchar(10) NOT NULL,
  [typeid] bigint NOT NULL,
  [term] nvarchar(2048) NOT NULL,
  [casesignificanceid] bigint NOT NULL
  CONSTRAINT PK_DescriptionsSnapshot PRIMARY KEY ([id],[effectivetime]),
  CONSTRAINT FK_ConceptsSnapshot_DescriptionsSnapshot_ConceptId FOREIGN KEY (conceptid) REFERENCES concepts_snapshot(id) ON DELETE CASCADE,
  CONSTRAINT FK_ConceptsSnapshot_DescriptionsSnapshot_ModuleId FOREIGN KEY (moduleid) REFERENCES concepts_snapshot(id) ON DELETE CASCADE,
  CONSTRAINT FK_ConceptsSnapshot_DescriptionsSnapshot_TypeId FOREIGN KEY (typeid) REFERENCES concepts_snapshot(id) ON DELETE CASCADE
)
GO

但是，我遇到了外键约束问题，并收到以下错误消息。

在引用表'concepts_snapshot'中没有与外键'FK_ConceptsSnapshot_DescriptionsSnapshot_ConceptId'中的引用列列表匹配的主键或候选键。

我该如何解决？

干杯

将MySql中的FK约束转换为Sql Sever

0 个答案: