SQL/MX 3.x Installation and Management Guide (H06.22+, J06.11+)

Querying SQL/MX Metadata
HP NonStop SQL/MX Installation and Management Guide—640325-001
8-56
Displaying All Columns in a NOT NULL Constraint
Displaying All Columns in a NOT NULL Constraint
This example displays all columns with NOT NULL constraints for the table
SAMDBCAT.SALES.ODETAIL:
>>set schema samdbcat.definition_schema_version_3000;
>> select substring(c.column_name, 1, 15) as column_name,
c.column_number as col_num,
case o2.object_type
when 'CC' then 'CHECK'
when 'NN' then 'NOT NULL'
when 'RC' then 'FOREIGN KEY'
when 'PK' then 'PRIMARY KEY'
when 'UC' then 'UNIQUE'
else 'UNKNOWN'
end as type,
substring(o2.object_name , 1, 24) as constraint_name
from cols c,
objects o1,
objects o2,
ck_col_usage k,
tbl_constraints t
where c.object_uid = t.table_uid
and k.constraint_uid = t.constraint_uid
and k.column_number = c.column_number
and t.table_uid = o1.object_uid
and o1.object_name = 'ODETAIL'
and o2.object_uid = t.constraint_uid
and o1.schema_uid =
(select schema_uid from
nonstop_sqlmx_dmr15.system_schema.schemata s
where s.schema_name = 'SALES' and
s.cat_uid =
(select cat_uid from
nonstop_sqlmx_dmr15.system_schema.catsys c
where c.cat_name = 'SAMDBCAT' and
schema_version = 3000
)
)
for read uncommitted access;
COLUMN_NAME COL_NUM TYPE CONSTRAINT_NAME
------------- ---------- ----------- ----------------------
ORDERNUM 0 NOT NULL ODETAIL_793765672_5188
PARTNUM 1 NOT NULL ODETAIL_793765672_5188
UNIT_PRICE 2 NOT NULL ODETAIL_793765672_5188
QTY_ORDERED 3 NOT NULL ODETAIL_793765672_5188
Displaying All Columns in a Referential Integrity Constraint
This example displays all columns with referential integrity constraints for the table
SAMDBCAT.SALES.ODETAIL:
>> alter table samdbcat.sales.odetail add constraint p1
foreign key (partnum)
references samdbcat.sales.parts(partnum);
>> set schema samdbcat.definition_schema_version_3000;