Sql 如何删除db2中的所有表

我希望使用foregin键删除db2数据库中的所有表，而不删除和重新创建。

如果您在Linux或Unix环境中

#!/bin/ksh

## load profile of your instance owner

db2 "connect to <db_name">
db2 -x "select tabschema,tabname from syscat.tables where type='T' and tabschema not like 'SYS%' with ur"|while read a b

do
   db2 "load from /dev/null of del replace into $a.$b nonrecoverable"
done

return 0

#/bin/ksh
##实例所有者的加载配置文件
db2“连接到”
删除文件的第一行和最后一行，并使用

db2 -tvf filename.

这样，我们还可以保存已删除的表的日志

PS：确保一次，文件中只存在您想要的表。不要搞错，删除一些系统表。
如果您还想删除所有视图、索引、外键等：

select 'drop index "' || TRIM(INDSCHEMA) || '"."' || TRIM(INDNAME) || '";'
  from SYSCAT.INDEXES
  where UNIQUERULE = 'D'
  and INDSCHEMA = (select current schema from SYSIBM.SYSDUMMY1);

select 'alter table "' || TRIM(TABSCHEMA) || '"."' || TRIM(TABNAME) || '" drop foreign key "' || TRIM(CONSTNAME) || '";'
  from SYSCAT.TABCONST
  where TYPE = 'F'
  and TABSCHEMA = (select current schema from SYSIBM.SYSDUMMY1)

select 'alter table "' || TRIM(TABSCHEMA) || '"."' || TRIM(TABNAME) || '" drop unique "' || TRIM(INDNAME) || '";'
  from SYSCAT.INDEXES
  where UNIQUERULE = 'U'
  and INDSCHEMA = (select current schema from SYSIBM.SYSDUMMY1);

select 'alter table "' || TRIM(TABSCHEMA) || '"."' || TRIM(TABNAME) || '" drop primary key;'
  from SYSCAT.INDEXES
  where UNIQUERULE = 'P'
  and INDSCHEMA = (select current schema from SYSIBM.SYSDUMMY1);

select 'drop table "' || TRIM(TABSCHEMA) || '"."' || TRIM(TABNAME) || '";'
  from SYSCAT.TABLES
  where TYPE = 'T'
  and TABSCHEMA = (select current schema from SYSIBM.SYSDUMMY1);

select 'drop view "' || TRIM(TABSCHEMA) || '"."' || TRIM(TABNAME) || '";'
  from SYSCAT.TABLES
  where TYPE = 'V'
  and TABSCHEMA = (select current schema from SYSIBM.SYSDUMMY1);

好吧，大概和你之前3次的投票方式一样，再加上接受更多的答案（如果他们帮助了你）。
select 'drop index "' || TRIM(INDSCHEMA) || '"."' || TRIM(INDNAME) || '";'
  from SYSCAT.INDEXES
  where UNIQUERULE = 'D'
  and INDSCHEMA = (select current schema from SYSIBM.SYSDUMMY1);

select 'alter table "' || TRIM(TABSCHEMA) || '"."' || TRIM(TABNAME) || '" drop foreign key "' || TRIM(CONSTNAME) || '";'
  from SYSCAT.TABCONST
  where TYPE = 'F'
  and TABSCHEMA = (select current schema from SYSIBM.SYSDUMMY1)

select 'alter table "' || TRIM(TABSCHEMA) || '"."' || TRIM(TABNAME) || '" drop unique "' || TRIM(INDNAME) || '";'
  from SYSCAT.INDEXES
  where UNIQUERULE = 'U'
  and INDSCHEMA = (select current schema from SYSIBM.SYSDUMMY1);

select 'alter table "' || TRIM(TABSCHEMA) || '"."' || TRIM(TABNAME) || '" drop primary key;'
  from SYSCAT.INDEXES
  where UNIQUERULE = 'P'
  and INDSCHEMA = (select current schema from SYSIBM.SYSDUMMY1);

select 'drop table "' || TRIM(TABSCHEMA) || '"."' || TRIM(TABNAME) || '";'
  from SYSCAT.TABLES
  where TYPE = 'T'
  and TABSCHEMA = (select current schema from SYSIBM.SYSDUMMY1);

select 'drop view "' || TRIM(TABSCHEMA) || '"."' || TRIM(TABNAME) || '";'
  from SYSCAT.TABLES
  where TYPE = 'V'
  and TABSCHEMA = (select current schema from SYSIBM.SYSDUMMY1);