CREATE OR REPLACE function SMES_C.long_2_varchar (
p_table_owner in DBA_TAB_PARTITIONS.table_owner%type,
p_table_name in DBA_TAB_PARTITIONS.table_name%type,
p_partition_name in DBA_TAB_PARTITIONS.partition_name%type)
return varchar2
as
l_high_value LONG;
begin
select high_value
into l_high_value
from DBA_TAB_PARTITIONS
where table_owner = p_table_owner
and table_name = p_table_name and partition_name = p_partition_name;
return substr( l_high_value, 1, 4000 );
end;
/
select A.TABLE_OWNER,a.table_name,SMES_c.long_2_varchar(TABLE_OWNER,table_name,partition_name) from DBA_TAB_PARTITIONS a
WHERE TABLE_OWNER='SMES_C'
AND TABLE_NAME='H_EQP_TRPA'
p_table_owner in DBA_TAB_PARTITIONS.table_owner%type,
p_table_name in DBA_TAB_PARTITIONS.table_name%type,
p_partition_name in DBA_TAB_PARTITIONS.partition_name%type)
return varchar2
as
l_high_value LONG;
begin
select high_value
into l_high_value
from DBA_TAB_PARTITIONS
where table_owner = p_table_owner
and table_name = p_table_name and partition_name = p_partition_name;
return substr( l_high_value, 1, 4000 );
end;
/
select A.TABLE_OWNER,a.table_name,SMES_c.long_2_varchar(TABLE_OWNER,table_name,partition_name) from DBA_TAB_PARTITIONS a
WHERE TABLE_OWNER='SMES_C'
AND TABLE_NAME='H_EQP_TRPA'
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/25583515/viewspace-2146409/ ，如需转载，请注明出处，否则将追究法律责任。
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