题目内容

如何进行强制LOG SWITCH？

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用于网络连接的 2个文件？

解释materialized views 的作用

Question8: How can I list all California authors regardless of
whether they have written a book？
In database pubs, have a table authors and titleauthor , table authors has a
column state, and titleauhtor have books each author written.
CA behalf of california in table authors.

Question9: How can I get a list of the stores that have bought both
'bussiness' and 'mod_cook' type books？
In database pubs, use three table stores,sales and titles to implement this
equestment.
ow I want to get the result as below:
stor_id stor_name
------- ----------------------------------------
...
7896 Fricative Bookshop
...
...
...