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Q&A Save migration info in separate DB schema

If you want to use a custom entity framework migration table, you can set it when configuring the database context as shown here: // this code belong to the database context class protected overr...

posted 3y ago by Alexei‭  ·  edited 3y ago by Alexei‭

Answer
#4: Post edited by user avatar Alexei‭ · 2021-05-01T15:39:45Z (over 3 years ago)
  • If you want to use a custom entity framework migration table, you can set it when configuring the database context as shown [here](https://docs.microsoft.com/en-us/ef/core/managing-schemas/migrations/history-table):
  • ```
  • // this code belong to the database context class
  • protected override void OnConfiguring(DbContextOptionsBuilder options)
  • => options.UseSqlServer(
  • _connectionString,
  • x => x.MigrationsHistoryTable("TheMigrations", "meta"));
  • ```
  • <hr>
  • <s>You are getting `dbo` schema for the created table, because this is the default schema for your login (used in the database connection string). There are two ways to configure the schema in a code-first project:[]()
  • 1. Using `TableAttribute`: `[Table(Schema="custom")] as indicated [here](https://www.entityframeworktutorial.net/code-first/table-dataannotations-attribute-in-code-first.aspx).
  • 2. Using fluent API: `modelBuilder.HasDefaultSchema("custom");` as indicated [here](https://www.entityframeworktutorial.net/code-first/configure-entity-mappings-using-fluent-api.aspx).
  • Personally, I prefer to use data annotations (attributes) whenever possible (you can easily see the configuration by looking at the model, but not all configurations can be done like this), but some prefer the fluent API because it allows a separation between the schema itself and its configuration (keys, constraints, indexes, etc.).
  • If you want to use a custom entity framework migration table, you can set it when configuring the database context as shown [here](https://docs.microsoft.com/en-us/ef/core/managing-schemas/migrations/history-table):
  • ```
  • // this code belong to the database context class
  • protected override void OnConfiguring(DbContextOptionsBuilder options)
  • => options.UseSqlServer(
  • _connectionString,
  • x => x.MigrationsHistoryTable("TheMigrations", "meta"));
  • ```
  • <hr>
  • <s>You are getting `dbo` schema for the created table, because this is the default schema for your login (used in the database connection string). There are two ways to configure the schema in a code-first project: </s>
  • <s>
  • 1. Using `TableAttribute`: `[Table(Schema="custom")] as indicated [here](https://www.entityframeworktutorial.net/code-first/table-dataannotations-attribute-in-code-first.aspx).
  • 2. Using fluent API: `modelBuilder.HasDefaultSchema("custom");` as indicated [here](https://www.entityframeworktutorial.net/code-first/configure-entity-mappings-using-fluent-api.aspx).
  • </s>
  • <s>
  • Personally, I prefer to use data annotations (attributes) whenever possible (you can easily see the configuration by looking at the model, but not all configurations can be done like this), but some prefer the fluent API because it allows a separation between the schema itself and its configuration (keys, constraints, indexes, etc.).
  • </s>
#3: Post edited by user avatar Alexei‭ · 2021-05-01T15:38:58Z (over 3 years ago)
fixed the old text
  • If you want to use a custom entity framework migration table, you can set it when configuring the database context as shown [here](https://docs.microsoft.com/en-us/ef/core/managing-schemas/migrations/history-table):
  • ```
  • // this code belong to the database context class
  • protected override void OnConfiguring(DbContextOptionsBuilder options)
  • => options.UseSqlServer(
  • _connectionString,
  • x => x.MigrationsHistoryTable("TheMigrations", "meta"));
  • ```
  • <hr>
  • <s>You are getting `dbo` schema for the created table, because this is the default schema for your login (used in the database connection string). There are two ways to configure the schema in a code-first project:
  • 1. Using `TableAttribute`: `[Table(Schema="custom")] as indicated [here](https://www.entityframeworktutorial.net/code-first/table-dataannotations-attribute-in-code-first.aspx).
  • 2. Using fluent API: `modelBuilder.HasDefaultSchema("custom");` as indicated [here](https://www.entityframeworktutorial.net/code-first/configure-entity-mappings-using-fluent-api.aspx).
  • Personally, I prefer to use data annotations (attributes) whenever possible (you can easily see the configuration by looking at the model, but not all configurations can be done like this), but some prefer the fluent API because it allows a separation between the schema itself and its configuration (keys, constraints, indexes, etc.). </s>
  • If you want to use a custom entity framework migration table, you can set it when configuring the database context as shown [here](https://docs.microsoft.com/en-us/ef/core/managing-schemas/migrations/history-table):
  • ```
  • // this code belong to the database context class
  • protected override void OnConfiguring(DbContextOptionsBuilder options)
  • => options.UseSqlServer(
  • _connectionString,
  • x => x.MigrationsHistoryTable("TheMigrations", "meta"));
  • ```
  • <hr>
  • <s>You are getting `dbo` schema for the created table, because this is the default schema for your login (used in the database connection string). There are two ways to configure the schema in a code-first project:[]()
  • 1. Using `TableAttribute`: `[Table(Schema="custom")] as indicated [here](https://www.entityframeworktutorial.net/code-first/table-dataannotations-attribute-in-code-first.aspx).
  • 2. Using fluent API: `modelBuilder.HasDefaultSchema("custom");` as indicated [here](https://www.entityframeworktutorial.net/code-first/configure-entity-mappings-using-fluent-api.aspx).
  • Personally, I prefer to use data annotations (attributes) whenever possible (you can easily see the configuration by looking at the model, but not all configurations can be done like this), but some prefer the fluent API because it allows a separation between the schema itself and its configuration (keys, constraints, indexes, etc.).
#2: Post edited by user avatar Alexei‭ · 2021-05-01T15:38:15Z (over 3 years ago)
added response to the actual question
  • You are getting `dbo` schema for the created table, because this is the default schema for your login (used in the database connection string). There are two ways to configure the schema in a code-first project:
  • 1. Using `TableAttribute`: `[Table(Schema="custom")] as indicated [here](https://www.entityframeworktutorial.net/code-first/table-dataannotations-attribute-in-code-first.aspx).
  • 2. Using fluent API: `modelBuilder.HasDefaultSchema("custom");` as indicated [here](https://www.entityframeworktutorial.net/code-first/configure-entity-mappings-using-fluent-api.aspx).
  • Personally, I prefer to use data annotations (attributes) whenever possible (you can easily see the configuration by looking at the model, but not all configurations can be done like this), but some prefer the fluent API because it allows a separation between the schema itself and its configuration (keys, constraints, indexes, etc.).
  • If you want to use a custom entity framework migration table, you can set it when configuring the database context as shown [here](https://docs.microsoft.com/en-us/ef/core/managing-schemas/migrations/history-table):
  • ```
  • // this code belong to the database context class
  • protected override void OnConfiguring(DbContextOptionsBuilder options)
  • => options.UseSqlServer(
  • _connectionString,
  • x => x.MigrationsHistoryTable("TheMigrations", "meta"));
  • ```
  • <hr>
  • <s>You are getting `dbo` schema for the created table, because this is the default schema for your login (used in the database connection string). There are two ways to configure the schema in a code-first project:
  • 1. Using `TableAttribute`: `[Table(Schema="custom")] as indicated [here](https://www.entityframeworktutorial.net/code-first/table-dataannotations-attribute-in-code-first.aspx).
  • 2. Using fluent API: `modelBuilder.HasDefaultSchema("custom");` as indicated [here](https://www.entityframeworktutorial.net/code-first/configure-entity-mappings-using-fluent-api.aspx).
  • Personally, I prefer to use data annotations (attributes) whenever possible (you can easily see the configuration by looking at the model, but not all configurations can be done like this), but some prefer the fluent API because it allows a separation between the schema itself and its configuration (keys, constraints, indexes, etc.). </s>
#1: Initial revision by user avatar Alexei‭ · 2021-04-30T12:43:02Z (over 3 years ago)
You are getting `dbo` schema for the created table, because this is the default schema for your login (used in the database connection string). There are two ways to configure the schema in a code-first project:

1. Using `TableAttribute`: `[Table(Schema="custom")] as indicated [here](https://www.entityframeworktutorial.net/code-first/table-dataannotations-attribute-in-code-first.aspx).

2. Using fluent API: `modelBuilder.HasDefaultSchema("custom");` as indicated [here](https://www.entityframeworktutorial.net/code-first/configure-entity-mappings-using-fluent-api.aspx).

Personally, I prefer to use data annotations (attributes) whenever possible (you can easily see the configuration by looking at the model, but not all configurations can be done like this), but some prefer the fluent API because it allows a separation between the schema itself and its configuration (keys, constraints, indexes, etc.).