的MySQL 5.6.20錯誤ALTER忽略表

我加入這行添加ignore MySQL數據庫：的MySQL 5.6.20錯誤ALTER忽略表

ALTER IGNORE cms_books_author name ADD UNIQUE(name)

，但我得到這個錯誤：

Error 
SQL query: 


ALTER IGNORE cms_books_author name ADD UNIQUE(name) 
MySQL said: Documentation 

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'efcms_books_author name ADD UNIQUE(name)' at line 1

MySQL的版本是：5.6.20

我該如何解決這個錯誤？謝謝。

來源

2015-09-07 Perspolis

缺少表格並調整唯一索引的語法：'ALTER IGNORE表cms_books_author ADD UNIQUE（name）;' – amdixon

@amdixon：你說得對。爲你接受接受答案。 – Perspolis

語法問題

alter ignore missing the table keyword

syntax should only include the name within the unique index not after the tablename

調整

ALTER IGNORE table cms_books_author ADD UNIQUE(name);

sqlfiddle

alter table syntax

ALTER [ONLINE | OFFLINE] [IGNORE] TABLE tbl_name 
    [alter_specification [, alter_specification] ...] 
    [partition_options] 

... 

alter_specification: 
    table_options 
    | ADD [CONSTRAINT [symbol]] 
     UNIQUE [INDEX|KEY] [index_name] 
     [index_type] (index_col_name,...) [index_option] ...

來源

2015-09-07 12:24:23 amdixon

的MySQL 5.6.20錯誤ALTER忽略表

回答

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