Update 02-database.md
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@ -142,10 +142,10 @@ SHOW CREATE DATABASE db_name;
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### 查看数据库参数
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```sql
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select * from information_schema.ins_databases \G;
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SELECT * FROM INFORMATION_SCHEMA.INS_DATABASES WHERE NAME='DBNAME' \G;
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```
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会列出系统中所有数据库的配置参数,并且每行只显示一个参数。
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会列出指定数据库的配置参数,并且每行只显示一个参数。
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## 删除过期数据
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