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# Lazy {#lazy}
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2020-02-03 15:12:03 +00:00
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Keeps tables in RAM only `expiration_time_in_seconds` seconds after last access. Can be used only with \*Log tables.
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It’s optimized for storing many small \*Log tables, for which there is a long time interval between accesses.
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## Creating a Database {#creating-a-database}
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CREATE DATABASE testlazy ENGINE = Lazy(expiration_time_in_seconds);
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2020-01-30 10:34:55 +00:00
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[Original article](https://clickhouse.tech/docs/en/database_engines/lazy/) <!--hide-->
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