如何在存储过程中创建索引?它抱怨
消息 102,级别 15,状态 1,过程 createIndexModifiedOn,第 12 行
“PRIMARY”附近的语法不正确。
但ON [PRIMARY]
,如果您创建一个新索引并选择Script As New Query
.
如果我删除ON [PRIMARY]
然后它给出了这个错误
消息 102,级别 15,状态 1,过程 createIndexModifiedOn,第 12 行
')' 附近的语法不正确。
这是程序:
create proc [dbo].createIndexModifiedOn
@table char(256)
as begin
declare @idx char(256)
set @idx = 'idx_' + SUBSTRING(@table, 7, len(@table)-1) + '_modified_on';
IF EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(@table) AND name = @idx)
DROP INDEX [@idx] ON [@table]
CREATE NONCLUSTERED INDEX [@idx] ON [@table]
(
[modified_on] ASC
) ON [PRIMARY]
go
这最终成为完整的查询:
create proc [dbo].createIndexModifiedOn
@table varchar(256)
as
declare @idx varchar(256);
declare @sql nvarchar(999);
set @idx = 'idx_' + SUBSTRING(@table, 8, len(@table)-8) + '_modified_on';
set @sql = '
IF EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(''' + @table + ''') AND name = ''' + @idx + ''')
DROP INDEX [' + @idx + '] ON ' + @table + '
CREATE NONCLUSTERED INDEX [' + @idx + '] ON ' + @table + '
(
[modified_on] ASC
) ON [PRIMARY]
';
print @table + ', ' + @idx;
BEGIN TRY
EXEC sp_executesql @sql;
END TRY
BEGIN CATCH
PRINT 'errno: ' + ltrim(str(error_number()))
PRINT 'errmsg: ' + error_message()
END CATCH
GO
EXEC sp_MSforeachtable 'exec createIndexModifiedOn "?"'