In this post, I am sharing SQL Server Database Administrator script for rebuilding all Indexes of a Database.

To Rebuild or Reorganize the Indexes is a very common task for DBA.
If Index fragmentation is increasing, periodically it requires executing Rebuild Index for better performance.

If we want to Rebuild all Indexes of a Database, we should build and generate the script because using default command we can only perform Rebuild operation on table level.

SQL Server: Script to find Index Average Fragmentation in Percentage

In below script, I commented Fill Factor related changes, and If anyone wants, they uncomment it.
Please SELECT your database and execute the below script.

Note: Database REBUILD INDEX is a very costly operation and It requires an exclusive lock on table so please aware yourself before executing it.

DECLARE @DatabaseName SYSNAME   = DB_NAME()
DECLARE @TableName VARCHAR(256) 
--DECLARE @FILLFACTOR INT = 85
DECLARE @SQL NVARCHAR(MAX) =

 'DECLARE curAllIndex CURSOR FOR SELECT TABLE_SCHEMA +
 ''.'' + TABLE_NAME AS TABLENAME  
 FROM ' + @DatabaseName + '.INFORMATION_SCHEMA.TABLES WHERE
 TABLE_TYPE = ''BASE TABLE'''  
 
BEGIN 
  EXEC sp_executeSQL @SQL  
  OPEN curAllIndex
  FETCH NEXT FROM curAllIndex INTO @TableName  
  WHILE (@@FETCH_STATUS = 0) 
  BEGIN  
       /* -- For using FillFactor setting. 
	   SET @DynamicSQL = 'ALTER INDEX ALL ON ' + @TableName +  
	   ' REBUILD WITH (FILLFACTOR = ' + CONVERT(VARCHAR,@FILLFACTOR) + ')' 
	   */
	   SET @SQL = 'ALTER INDEX ALL ON ' + @TableName +  
	   ' REBUILD ' 
       PRINT @SQL       
       EXEC sp_executeSQL @SQL 
       FETCH NEXT FROM curAllIndex INTO @TableName  
   END   
   CLOSE curAllIndex  
   DEALLOCATE curAllIndex 
END