方法一:工具
1，把EXCEL文件另存为CSV文件，（直接用EXCEL文件，好像数据不太容易导入，具体原因不明）
2，打开EMS PostgreSQL Manager 工具，选中import data选中导入文件类型选中CSV
3：注意，导入的数据库的编码格式为：SQL_ASCII
方法儿：用命令
COPY tablename [ ( column [, ...] ) ]
FROM { 'filename' | STDIN }
[ [ WITH ]
[ BINARY ]
[ OIDS ]
[ DELIMITER [ AS ] 'delimiter' ]
[ NULL [ AS ] 'null string' ]
[ CSV [ QUOTE [ AS ] 'quote' ]
[ ESCAPE [ AS ] 'escape' ]
[ FORCE NOT NULL column [, ...] ]
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