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我有一個表阿爾特柱下降指數
CREATE TABLE table1(
[classe] [char](30) NOT NULL,
[code] [char](30) NOT NULL,
[description] [varchar](255) NULL,
[codelangue] [char](2) NULL
) ON [PRIMARY]
與指數
CREATE NONCLUSTERED INDEX [table1_id1] ON [dbo].[table1]
(
[codelangue] ASC,
[classe] ASC,
[code] ASC
)
INCLUDE ([description]) WITH (PAD_INDEX = OFF,
STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF,
IGNORE_DUP_KEY = OFF, DROP_EXISTING = OFF, ONLINE = OFF,
ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
當我做
ALTER TABLE table1
ALTER COLUMN codelangue [char](2) NOT NULL
則丟棄該指數及相關的statistique。
任何想法爲什麼?
的任何版本執行如果重新PAS在NULL列索引和,然後我重新嘗試它傳遞NOT NULL我得到相同錯誤...但不是第一次,我不明白爲什麼...... – Roxana 2009-10-30 10:23:35
燁,同樣在這裏 - 我不能執行該語句來改變表的列 – 2009-10-30 10:24:53