For a general sample how to call UseMySql(), see Services Configuration.
As of version 5.0, there are 2 mandatory parameters you need to supply to your UseMySql() call.
Provide a connection string for the database you want to connect to.
We use MySqlConnector underneath for all communication between Pomelo.EntityFrameworkCore.MySql and MySQL. For a complete list of all connection string options, see MySQL .NET Connection String Options.
Pomelo.EntityFrameworkCore.MySql is compatible with a variety of MySQL compatible database server implementations over multiple versions. To choose the right syntax and available feature set for the server implementation at hand, specify the exact server version you are running.
Either set the server version directly using the MySqlServerVersion and MariaDbServerVersion classes, or indirectly by calling the static ServerVersion.AutoDetect() or ServerVersion.Parse() methods.
The following settings can be used on demand, by calling their respective extension method in the UseMySql() call.
Configures the context to use the default retrying IExecutionStrategy.
Configures string escaping in SQL query generation to ignore backslashes, and assumes that sql_mode has been set to NO_BACKSLASH_ESCAPES. This applies to both constant and parameter values (i. e. user input, potentially).
When true, implicitly executes a SET SESSION sql_mode statement after opening a connection to the database server, adding the modes enabled by other options. When false, the sql_mode is not being set by the provider and has to be manually handled by the caller, to synchronize it with other options that have been set.
Skip replacing \r and \n with CHAR() calls in strings inside queries.
Configures default mappings between specific CLR and MySQL types.
TinyInt1)DATETIME precision supported by the current database server)TIME precision supported by the current database server)Configures the behavior for cases when a schema has been set for an entity. Because MySQL does not support the EF Core concept of schemas, the default is to throw an exception.
EnableIndexOptimizedBooleanColumnsConfigures the context to optimize System.Boolean mapped columns for index usage, by translating e.BoolColumn to BoolColumn = TRUE and !e.BoolColumn to BoolColumn = FALSE.
Configures the context to automatically limit the length of System.String mapped columns, that have not explicitly mapped to a store type (e.g. varchar(1024)), to ensure that at least two indexed columns will be allowed on a given table (this is the default if you don't configure this option). If you intend to use HasPrefixLength() for those kind of columns, set this option to false.
Configures the context to translate string related methods, containing a parameter of type StringComparison, to their SQL equivalent, even though MySQL might not be able to use indexes when executing the query, resulting in decreased performance. Whether MySQL is able to use indexes for the query, depends on the StringComparison option, the underlying collation and the scenario. It is also possible to just use EF.Functions.Collate(), possibly in addition to string.ToUpper() if needed, to achieve the same result but with full control over the SQL generation.
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