如何將postgresql數據庫表內數據導出為excel格式(推薦)

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本文主要用於介紹如何使用copy或者\copy命令將postgresql數據庫內表的數據導出為excel格式，方便用戶查看編輯。

copy命令同\copy命令語法上相同，區別在於copy必須使用能夠超級用戶使用,copy … to file 中的文件都是數據庫服務器所在的服務器上的文件，而\copy 一般用戶即可執行且\copy 保存或者讀取的文件是在客戶端所在的服務器。本文主要以copy命令作為介紹重點，使用copy命令將表內數據倒為csv格式文件即為excel格式。
1、copy命令語法

COPY { 表名 [ ( 列名稱 [, ...] ) ] | ( 查詢 ) } 
TO { '文件名' | PROGRAM '命令' | STDOUT } 
 [ [ WITH ] ( 選項 [, ...] ) ]

選項可以是下列內容之一
 FORMAT 格式_名稱 
 FREEZE [ 佈爾 ] 
 DELIMITER '分隔字符' 
 NULL '空字符串' 
 HEADER [ 佈爾 ] 
 QUOTE '引用字符' 
 ESCAPE '轉義字符' 
 FORCE_QUOTE { ( 列名稱 [, ...] ) | * } 
 FORCE_NOT_NULL ( 列名稱 [, ...] ) 
 FORCE_NULL ( 列名稱 [, ...] ) 
 ENCODING 'encoding_name(編碼名)'

2、多場景使用介紹
①查看現有表數據

test=# select * from test;
user_id | user_name | age | gender |     remark     
---------+---------------+-----+--------+----------------------------------------------
  1 | Jackie Chan | 45 | male | "police story","project A","rush hour"
  3 | Brigitte Li | 46 | female | 
  4 | Maggie Cheung | 39 | female | 
  5 | Jet Li  | 41 | male | "Fist of Legend","Once Upon a Time in China"
  2 | Gong Li  | 38 | female | "Farewell My Concubine","Lifetimes Living"
(5 行記錄)

②帶列名導出，默認情況下使用，作為分隔符

test=# copy test to '/tmp/test1.csv' with csv header;
COPY 5
test=# \! cat /tmp/test1.csv
user_id,user_name,age,gender,remark
1,Jackie Chan,45,male,"""police story"",""project A"",""rush hour"""
3,Brigitte Li,46,female,
4,Maggie Cheung,39,female,
5,Jet Li,41,male,"""Fist of Legend"",""Once Upon a Time in China"""
2,Gong Li,38,female,"""Farewell My Concubine"",""Lifetimes Living"

③帶列名導出，指定使用|作為分隔符

test=# copy test to '/tmp/test1.csv' with csv header DELIMITER '|';
COPY 5
test=# \! cat /tmp/test1.csv
user_id|user_name|age|gender|remark
1|Jackie Chan|45|male|"""police story"",""project A"",""rush hour"""
3|Brigitte Li|46|female|
4|Maggie Cheung|39|female|
5|Jet Li|41|male|"""Fist of Legend"",""Once Upon a Time in China"""
2|Gong Li|38|female|"""Farewell My Concubine"",""Lifetimes Living"

④帶列名導出，將空字符替換為指定值導出

test=# copy test to '/tmp/test1.csv' with csv header null 'to be supplemented';
COPY 5
test=# \! cat /tmp/test1.csv
user_id,user_name,age,gender,remark
1,Jackie Chan,45,male,"""police story"",""project A"",""rush hour"""
3,Brigitte Li,46,female,to be supplemented
4,Maggie Cheung,39,female,to be supplemented
5,Jet Li,41,male,"""Fist of Legend"",""Once Upon a Time in China"""
2,Gong Li,38,female,"""Farewell My Concubine"",""Lifetimes Living"

到此這篇關於如何將postgresql數據庫表內數據導出為excel格式的文章就介紹到這瞭,更多相關postgresq表內數據導出excel格式內容請搜索WalkonNet以前的文章或繼續瀏覽下面的相關文章希望大傢以後多多支持WalkonNet！

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