使用Service Stack OrmLite时,如何准确插入标识值?
例如,在SQL Server中为表启用Identity_Insert时,将严格按照指定插入标识值,而不会自动生成。
答案 0 :(得分:1)
例如:
public void InsertAll(IEnumerable<TTable> set)
{
const string identity = "SET IDENTITY_INSERT {0} {1}";
var schema = typeof(TTable).FirstAttribute<SchemaAttribute>();
var tableName = typeof(TTable).FirstAttribute<AliasAttribute>();
var qualified = (schema == null ? "dbo" : schema.Name) + "." +
(tableName == null ? typeof(TTable).Name : tableName.Name);
using (var db = _dbConnectionFactory.OpenDbConnection())
{
try
{
db.ExecuteSql(string.Format(identity, qualified, "ON"));
db.InsertAll(set);
}
finally
{
db.ExecuteSql(string.Format(identity, qualified, "OFF"));
}
});
}