02 2025 档案
摘要:CREATE PROCEDURE DELETE_Data()BEGIN delete FROM `new_energy_plc` where INPUTTIME<date_add(now(),interval-6 day); delete from cd_ret_well_collect where
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摘要:-- 定义要查询的表名DECLARE v_table_name VARCHAR2(100) := 'YOUR_TABLE_NAME'; v_sql VARCHAR2(4000); v_column_list VARCHAR2(4000);BEGIN -- 初始化列列表 v_column_list :
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摘要:模式切换//查询当前模式SELECT SYS_CONTEXT ('userenv', 'current_schema') FROM DUAL;//设置当前登录用户的默认模式SET SCHEMA SMARTWELL; create tablespace "smartwell" datafile 'D:
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