39 lines
914 B
SQL
39 lines
914 B
SQL
\c postgres;
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DO $$
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DECLARE
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view_exists BOOLEAN;
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BEGIN
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-- 检查视图是否已存在
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SELECT EXISTS (
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SELECT 1 FROM information_schema.views
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WHERE table_name = 'user_info_view'
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) INTO view_exists;
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-- 创建或更新视图
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CREATE OR REPLACE VIEW user_info_view AS
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SELECT
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u.id AS user_id,
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ua.account AS account,
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up.password AS password,
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u.deleted AS deleted
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FROM
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"user" u
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JOIN
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account ua ON u.id = ua.user_id
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JOIN
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password up ON u.id = up.user_id
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WHERE
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u.deleted = FALSE;
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-- 根据视图是否已存在输出不同提示
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IF view_exists THEN
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RAISE NOTICE '视图 user_info_view 已更新';
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ELSE
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RAISE NOTICE '视图 user_info_view 已创建';
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END IF;
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EXCEPTION
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WHEN OTHERS THEN
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RAISE NOTICE '处理视图时发生错误: %', SQLERRM;
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END $$;
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