SQL 서버 - The transaction log for database '...' is full due to 'LOG_BACKUP'.

.ldf 파일의 사이즈가 너무 커져서 하드 디스크 용량 부족으로 SQL 쿼리 실행시 오류가 발생했습니다.

The transaction log for database '...' is full due to 'LOG_BACKUP'
  Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

 Exception Details: System.Data.SqlClient.SqlException: The transaction log for database '...' is full due to 'LOG_BACKUP'. 

Source Error: 

Line 277:                command.Parameters.Add(new SqlParameter("@Name", nameText));
Line 278:                command.Parameters.Add(new SqlParameter("@Password", Guid.NewGuid().ToString()));
Line 279:                int affected = command.ExecuteNonQuery();
Line 280:
Line 281:                command.Parameters.Clear();
  

 Source File:  d:\UnitTest\Net20Test\Default.aspx.cs    Line:  279 

Stack Trace: 

[SqlException (0x80131904): The transaction log for database '...' is full due to 'LOG_BACKUP'. ]
   System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +117
   System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +87
   ...[생략]...
   System.Data.SqlClient.SqlCommand.ExecuteNonQuery() +323
   Net20Test._Default.Page_Load(Object sender, EventArgs e) in d:\UnitTest\Net20Test\Default.aspx.cs:279
   ...[생략]...
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3418

USE my_test_db_78f5aac8-e0a6-44ef-be4b-f2d158fb61b9
GO

ALTER DATABASE my_test_db_78f5aac8-e0a6-44ef-be4b-f2d158fb61b9
SET RECOVERY SIMPLE;
GO

DBCC SHRINKFILE (my_test_db_78f5aac8-e0a6-44ef-be4b-f2d158fb61b9_log, 7);
GO

ALTER DATABASE my_test_db_78f5aac8-e0a6-44ef-be4b-f2d158fb61b9
SET RECOVERY FULL;
GO

Msg 911, Level 16, State 1, Line 1
Database 'my_test_db_78f5aac8' does not exist. Make sure that the name is entered correctly.
Msg 102, Level 15, State 1, Line 3
Incorrect syntax near '-'.

USE "my_test_db_78f5aac8-e0a6-44ef-be4b-f2d158fb61b9"
GO

ALTER DATABASE "my_test_db_78f5aac8-e0a6-44ef-be4b-f2d158fb61b9"
SET RECOVERY SIMPLE;
GO

DBCC SHRINKFILE ("my_test_db_78f5aac8-e0a6-44ef-be4b-f2d158fb61b9_log", 7);
GO

ALTER DATABASE "my_test_db_78f5aac8-e0a6-44ef-be4b-f2d158fb61b9"
SET RECOVERY FULL;
GO