组合插入查询

Question

我有以下使用相同 table 的不同列的插入查询：

insert into TABLE1(ID,RECORD_ID,V_ID,NUM,V_TYPE,V_Number,table,SP,row)
select '||V_SEQ||'.nextval,b.RECORD_ID,111,1,51,a.CMN,'TABLE3',''||SP||'',b.row
from TABLE2 B join TABLE3 A on B.row=A.row where B.table='TABLE3';
commit;

insert into TABLE1(ID,RECORD_ID,V_ID,NUM,V_TYPE,V_Number,table,SP,row)
select '||V_SEQ||'.nextval,b.RECORD_ID,112,1,51,a.CLN,'TABLE3',''||SP||'',b.row
from TABLE2 B join TABLE3 A on B.row=A.row where B.table='TABLE3';
commit;

insert into TABLE1(ID,RECORD_ID,V_ID,NUM,V_TYPE,V_Number,table,SP,row)
select '||V_SEQ||'.nextval,b.RECORD_ID,113,1,51,a.CLM_TYPE,'TABLE3',''||SP||'',b.row
from TABLE2 B join TABLE3 A on B.row=A.row where B.table='TABLE3';
commit;

insert into TABLE1(ID,RECORD_ID,V_ID,NUM,V_TYPE,V_Number,table,SP,row)
select '||V_SEQ||'.nextval,b.RECORD_ID,114,1,50,a.REV_CNTR,'TABLE3',''||SP||'',b.row
from TABLE2 B join TABLE3 A on B.row=A.row where B.table='TABLE3';
commit;

insert into TABLE1(ID,RECORD_ID,V_ID,NUM,V_TYPE,V_Number,table,SP,row)
select '||V_SEQ||'.nextval,b.RECORD_ID,115,1,50,a.HCPCS_CD,'TABLE3',''||SP||'',b.row
from TABLE2 B join TABLE3 A on B.row=A.row where B.table='TABLE3';
commit;

V_ID 取决于我使用的列。有没有一种方法可以将所有这些组合成一个插入查询。

如果我不这样做，我必须一个接一个地执行它，它会多次扫描 table。

Answer 1

insert into TABLE1(ID,RECORD_ID,V_ID,NUM,V_TYPE,V_Number,table,SP,row)
    select '||V_SEQ||'.nextval, b.RECORD_ID,
           x.col1, 1, x.col3,
           (case when x.col1 = 111 then a.CMN
                 when x.col1 = 112 then a.CLN
                 when x.col1 = 113 then a.CLM_TYPE
                 when x.col1 = 114 then a.REV_CNTR
                 when x.col1 = 115 then a.HCPCS_CD
            end), 
           'TABLE3', ''||SP||'', b.row
    from TABLE2 B join
         TABLE3 A
         on B.row = A.row CROSS JOIN
         ((select 111 as col1, 51 as col3 from dual) union all
          (select 112 as col1, 51 as col3 from dual) union all
          (select 113 as col1, 51 as col3 from dual) union all
          (select 114 as col1, 50 as col3 from dual) union all
          (select 115 as col1, 50 as col3 from dual)
         ) x         
    where B.table = 'TABLE3';

组合插入查询

Combine insert queries

sql

oracle

insert