sql - SQL Server 2012 中的索引碎片整理

Question

我正在运行来自 SQLFOOL 和 SQL Authorities 等的不同脚本，但是当我检查数据库时，我根本看不到任何碎片整理。我写了一些代码不起作用，你能帮帮我吗？

Declare @table_name Varchar (70);

Declare table_cursor Cursor for 
     select OBJECT_SCHEMA_NAME([OBJECT_ID])+'.' + NAME AS Tablenamee 
     from sys.tables

open table_cursor
Fetch next from table_cursor into @table_name

While @@fetch_status = 0
begin
    Alter index all on @table_name
      REBUILD WITH (FILLFACTOR=80, ONLINE=ON) 

    fetch next from table_cursor into @table_name
end 

Close table_cursor
deallocate table_cursor

得到错误

@table_name 附近的语法不正确

Answer 1

您肯定需要考虑一个有效的解决方案，然后编写自己的查询。更好的解决方案是使用此https://ola.hallengren.com/sql-server-index-and-statistics-maintenance.html

Declare @table_name as Varchar(70);
declare @sql as nvarchar(max);
DECLARE @ParmDefinition NVARCHAR(100);

Declare table_cursor Cursor for 
     select top 10 OBJECT_SCHEMA_NAME([OBJECT_ID])+'.' + NAME AS Tablenamee 
     from sys.tables

open table_cursor
Fetch next from table_cursor into @table_name

While @@fetch_status = 0
begin
    set @sql = N'Alter index all on ' + @table_name +'
      REBUILD WITH (FILLFACTOR=80, ONLINE=ON)';

      SET @ParmDefinition = N'@table_name varchar(70)';

      EXECUTE sp_executesql @sql, 
                              @ParmDefinition, 
                              @table_name = @table_name;

    fetch next from table_cursor into @table_name
end 

Close table_cursor
deallocate table_cursor