外键约束 foreign key 外键约束的要求： 父表和字表必须使用相同的存储引擎，禁止使用临时表； 数据库...
Refs#30591-- Adjusted table rebuild for non-pk relationship on SQLite. The existing code was only accounting for primary key changes and not all unique key fields that can be referenced. Note:SeeTracTicketsfor help on using tickets. 用其他格式下载: ...
feature is Postgres but it's also supported by Microsoft SQL Server and IBM Db2 with the same syntax. Because of this I think it shouldn't be implemented as a postgres only feature but exposed on BaseDatabaseSchemaEditor to ease the adding of support when/if sqlite or mariadb/mysql get ...
Error meesage 'Exception from HRESULT: 0x800AC472' please help Error mesage when I run a SQLite command - Database is locked. Error MSB3073 The command "copy "E:\Code\EMR\WIControl\Debug\WIControl.dll" "..\..\Install\Setup Files\Compressed Files\Language Independent\Intel 32" :VCEnd"...
Unfortunately that query is self referential, so I have to usealiased, which means I cannot declare that method directly on themixinto be applied to all inheriting tables. However, I can declare it for all tables afterwards usingadd_propertyfrom the inspector. Which upon testing works, however...
sqlite(1) Standard(1) Standards(1) standardthreadinfo(1) STARTING PROBLEM(1) startpoints(1) state(1) STEP(6) step file(1) step files(1) STL export(1) STP(1) STP batch export(1) Stress analysis(2) Stress analysis Invalid shells(1) stretch(%)(1) string(2)...
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这里的具体原理是什么还没搞清楚,上面的也只是猜测,特此记录 如果找到原因再更新! 更新: https://stackoverflow.com/questions/22013511/mysql-error-1215-hy000-cannot-add-foreign-key-constraint 也就是说我上面 的猜测是正确的! 看看对unique的测试:
Note: SQLite doesn’t support index length. Creating an index with a sort order (desc or asc, asc is the default) add_index(:accounts, [:branch_id, :party_id, :surname], order: {branch_id: :desc, party_id: :asc}) generates: CREATE INDEX by_branch_desc_party ON accounts(branch...
Data.SQLite' or one of its dependencies. An attempt was made to load a program with an incorrect format. Could not load file or assembly 'System.Web.Http.WebHost, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the ...