/// <summary>
/// Get the SQL string to drop this Constraint in the database.
/// </summary>
/// <param name="dialect">The <see cref="Dialect.Dialect"/> to use for SQL rules.</param>
/// <param name="defaultSchema"></param>
/// <param name="defaultCatalog"></param>
/// <returns>
/// A string that contains the SQL to drop this Constraint.
/// </returns>
public override string SqlDropString(Dialect.Dialect dialect, string defaultCatalog, string defaultSchema)
{
string ifExists = dialect.GetIfExistsDropConstraint(Table, Name);
string drop = string.Format("alter table {0} {1}", Table.GetQualifiedName(dialect, defaultCatalog, defaultSchema),
dialect.GetDropForeignKeyConstraintString(Name));
string end = dialect.GetIfExistsDropConstraintEnd(Table, Name);
return(ifExists + System.Environment.NewLine + drop + System.Environment.NewLine + end);
}
/// <summary>
/// Get the SQL string to drop this Constraint in the database.
/// </summary>
/// <param name="dialect">The <see cref="Dialect.Dialect"/> to use for SQL rules.</param>
/// <param name="defaultSchema"></param>
/// <param name="defaultCatalog"></param>
/// <returns>
/// A string that contains the SQL to drop this Constraint.
/// </returns>
public override string SqlDropString(Dialect.Dialect dialect, string defaultCatalog, string defaultSchema)
{
var catalog = Table.GetQuotedCatalog(dialect, defaultCatalog);
var schema = Table.GetQuotedSchema(dialect, defaultSchema);
var quotedName = Table.GetQuotedName(dialect);
return(new StringBuilder()
.AppendLine(dialect.GetIfExistsDropConstraint(catalog, schema, quotedName, Name))
.AppendFormat("alter table ")
.Append(Table.GetQualifiedName(dialect, defaultCatalog, defaultSchema))
.Append(" ")
.AppendLine(dialect.GetDropForeignKeyConstraintString(Name))
.Append(dialect.GetIfExistsDropConstraintEnd(catalog, schema, quotedName, Name))
.ToString());
}
