When returning SETOF record the output columns are not typed and not named. Thus this form can’t be used directly in a FROM clause as if it was a subquery or a table. That is, when issuing: SELECT * from events_by_type_2(‘social’); we get this error: ERROR: a column definition list is required for functions returning … Read more
The DataType Attribute is a Validation Attribute. You need to do that using the ModelBuilder. public class MyContext : DbContext { public DbSet<MyClass> MyClass; protected override void OnModelCreating(DbModelBuilder modelBuilder) { modelBuilder.Entity<MyClass>().Property(x => x.SnachCount).HasPrecision(16, 3); modelBuilder.Entity<MyClass>().Property(x => x.MinimumStock).HasPrecision(16, 3); modelBuilder.Entity<MyClass>().Property(x => x.MaximumStock).HasPrecision(16, 3); } }
The VARCHAR(MAX) type is a replacement for TEXT. The basic difference is that a TEXT type will always store the data in a blob whereas the VARCHAR(MAX) type will attempt to store the data directly in the row unless it exceeds the 8k limitation and at that point it stores it in a blob. Using … Read more
It depends on how you format the Guid: Guid.NewGuid().ToString() = 36 characters (Hyphenated) outputs: 12345678-1234-1234-1234-123456789abc Guid.NewGuid().ToString(“D”) = 36 characters (Hyphenated, same as ToString()) outputs: 12345678-1234-1234-1234-123456789abc Guid.NewGuid().ToString(“N”) = 32 characters (Digits only) outputs: 12345678123412341234123456789abc Guid.NewGuid().ToString(“B”) = 38 characters (Braces) outputs: {12345678-1234-1234-1234-123456789abc} Guid.NewGuid().ToString(“P”) = 38 characters (Parentheses) outputs: (12345678-1234-1234-1234-123456789abc) Guid.NewGuid().ToString(“X”) = 68 characters (Hexadecimal) outputs: {0x12345678,0x1234,0x1234,{0x12,0x34,0x12,0x34,0x56,0x78,0x9a,0xbc}}