MYSQL插入数据时忽略重复数据_MySQL

1：使用REPLACE INTO (此种方法是利用替换的方法，有点似类于先删除再插入) REPLACE INTO Syntax REPLACE [LOW_PRIORITY | DELAYED] [INTO] tbl_name [(col_name,...)] {VALUES | VALUE} ({expr | DEFAULT},…),(…),… Or: REPLACE [LOW_PRIORITY | DELAYED] [INTO] tbl_name SET col_name={expr | DEFAULT}, … Or: REPLACE [LOW_PRIORITY | DELAYED] [INTO] tbl_name [(col_name,...)] SELECT …2：使用INSERT [IGNORE] INTO (此种方法效率比较高,判断是否存在，存在不插入，否则插入) INSERT [IGNORE] INTO Syntax INSERT [LOW_PRIORITY | DELAYED | HIGH_PRIORITY] [IGNORE] [INTO] tbl_name [(col_name,...)] {VALUES | VALUE} ({expr [...]