postgresql判斷一個表是否存在:
方法一:
select count(*) from pg_class where relname = 'tablename';
方法二:
select count(*) from information_schema.tables where table_schema='public' and table_type='BASE TABLE' and table_name='tablename';
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作者:野狼楓
來源:CSDN
原文:https://blog.csdn.net/leixiaorong/article/details/7735883
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