使用bash合併多個SQLite數據庫？

Question

我有相同的架構多個SQLite數據庫，我想他們都合併在一起，因爲我有一個唯一的列，有可能是重複的風險，我使用insert or ignore，SQLite中它會很容易：

sqlite3 database.db3 
sqlite> attach './db1.db3' as s1; 
sqlite> attach './db2.db3' as s2; 
sqlite> attach './db3.db3' as s3; 
sqlite> insert or ignore into table (c1, c2, c3) select c1, c2, c3 from s1.table; 
sqlite> insert or ignore into table (c1, c2, c3) select c1, c2, c3 from s2.table; 
sqlite> insert or ignore into table (c1, c2, c3) select c1, c2, c3 from s3.table; 
sqlite> .exit 

我讀了關於轉儲，但我不想合併整個架構，只有一個表，所以我想這個解決方案，現在直到這裏一切都很好，但我需要通過bash運行所有這一切，我嘗試了以下但它不：

sqlite3 database.db3 "attach './db1.db3' as s1;" 
sqlite3 database.db3 "attach './db2.db3' as s2;" 
sqlite3 database.db3 "attach './db3.db3' as s3;" 
sqlite3 database.db3 "select count(*) from s1.table;" 
sqlite3 database.db3 "select count(*) from s2.table;" 
sqlite3 database.db3 "select count(*) from s3.table;" 

它說：Error: no such table: s1.table

我在做什麼錯

Answer 1

使用heredoc如下圖所示：

sqlite3 database.db3 << "EOF" 
attach './db1.db3' as s1; 
attach './db2.db3' as s2; 
attach './db3.db3' as s3; 
insert or ignore into table (c1, c2, c3) select c1, c2, c3 from s1.table; 
insert or ignore into table (c1, c2, c3) select c1, c2, c3 from s2.table; 
insert or ignore into table (c1, c2, c3) select c1, c2, c3 from s3.table; 
.exit 
EOF 

或者，把你的所有命令到一個文件中，並像這樣運行：

sqlite3 database.db3 < commandsFile 

Answer 2

1 ）用你想輸入到sqlite命令行程序的行創建一個文本文件，如下所示：

attach './db1.db3' as s1; 
attach './db2.db3' as s2; 
attach './db3.db3' as s3; 
insert or ignore into table (c1, c2, c3) select c1, c2, c3 from s1.table; 
insert or ignore into table (c1, c2, c3) select c1, c2, c3 from s2.table; 
insert or ignore into table (c1, c2, c3) select c1, c2, c3 from s3.table; 
.exit 

，然後只是調用使用殼

#!/bin/bash 

sqlite3 database.db <<"EOF" 
attach './db1.db3' as s1; 
attach './db2.db3' as s2; 
attach './db3.db3' as s3; 
insert or ignore into table (c1, c2, c3) select c1, c2, c3 from s1.table; 
insert or ignore into table (c1, c2, c3) select c1, c2, c3 from s2.table; 
insert or ignore into table (c1, c2, c3) select c1, c2, c3 from s3.table; 
.exit 
EOF 

sqlite3 database.db < commands.txt

2）