How to clear and shrink Database Log Files

When operating on a database, the program prompts that the data log is too large; open the Directory Check of the data file storage, it is found that the LDF file has reached more than 2 GB. The cleanup method is shown on the Internet. I tried it to achieve the desired effect. After completion, the LDF file is less than MB. Back up data before performing the operation... My operations are inQuery AnalyzerThe operation is completed as follows: 1. dump transaction DataBase_Name WITH NO_LOG 2. backup log DataBase_Name WITH NO_LOG 3. dbcc shrinkdatabase (DataBase_Name) The three steps are as follows: 1:Clear logs 2:Truncation transaction logs 3:Shrink Database The operations in the first two steps are fast, and the third part takes a lot of time.