SQL> select tag_name,tp_name,value from ins_dynamic; TAG_NAME TP_NAME VALUE ---------------- --------------- -------------- a NoString 1 b NoString 2
SQL> select (case when value='1' then 'value=1' when value='2' then 'value=2' else 'other value' end) tag_name1 from ins_dynamic;
TAG_NAME1
--------------------
value=1
value=2
SQL> insert into ins_dynamic(tag_name,tp_name) select 'zzzz.'||tag_name,(case when value='1' then 'value=1' when value='2' then 'value=2' else 'other value' end) from ins_dynamic;
已创建2行。
SQL> select tag_name,tp_name,value from ins_dynamic; TAG_NAME TP_NAME VALUE ---------------- --------------- -------------- a NoString 1 b NoString 2 zzz.a value=1 NoString zzz.b value=2 NoString 最后写一个生猛的 DELETE FROM dict_column_info; INSERT INTO dict_column_info(table_name,column_name,data_type,data_length,is_nullable,is_key) SELECT t1.table_name,t1.column_name, (case when t1.data_type='VARCHAR2' then 1 when t1.data_type='DATE' then 2 when t1.data_type='NUMBER' AND t1.data_precision=22 AND t1.data_scale=6 then 3 when t1.data_type='NUMBER' AND t1.data_precision=10 AND t1.data_scale=0 then 4 else 0 end), (case when t1.data_type='VARCHAR2' then t1.data_length when t1.data_type='DATE' then 4 when t1.data_type='NUMBER' AND t1.data_precision=22 AND t1.data_scale=6 then 4 when t1.data_type='NUMBER' AND t1.data_precision=10 AND t1.data_scale=0 then 4 else 0 end), (case when t1.nullable='Y' then 1 when t1.nullable='N' then 0 else -1 end), (case when (t1.table_name,t1.column_name) IN (SELECT t2.table_name,t2.column_name FROM all_cons_columns t2 where t2.owner = 'ISCS' AND t2.constraint_name IN (SELECT t3.constraint_name FROM all_constraints t3 where t3.owner = 'ISCS' AND t3.constraint_type = 'P')) then 1 else 0 end) from user_tab_columns t1;
