简洁的语句，清晰了我们的感情。
这样的DECLARE语句也意味着代码更加简洁。
Such DECLARE statements also mean code that is more concise.
db 2 expln和db2exfmt命令用更简洁的方式提供了广泛的信息，在需要针对性能频繁分析sql语句时，通常使用这两个命令。
The db2expln and db2exfmt commands provide comprehensive information in a more concise manner and are generally used by those frequently analyzing SQL statements for performance.
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