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Spring Boot-mybatis Three kinds of dynamic SQL (5)

Script SQLXML Configuration Dynamic SQL I will not talk about, I am interested to understand, the following is a @Select ("") publicObviously, writing XML in Java is poor in readability and maintainability, especially when SQL is long, which is painful to write.It is not possible to write implementations in the Sqldao interface constructed in the method, so the internal classes are borrowed to generate dynamic SQL. There are also corresponding @insertprovider, @UpdateProvider, @DeleteProvider

Entity Framework 6 Code First series: Enables Sqlite.codefirst to support Dropcreatedatabaseifmodelchanges and rowversion

=Sqlitedatabasecreator.getsql (); varOldsql =""; Oldsql= System.Text.Encoding.UTF8.GetString (context. Set(). Asnotracking (). FirstOrDefault (). Model); Context. Database.Connection.Close (); Gc. Collect (); if(Oldsql = =newsql) { return; } for(inti =0; I Ten; i++) { Try{file.delete (Databasefilepath); Break; }

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