does this query get all values including nulls,where the parameter not available in Table.
select name,display_value
from v$spparameter where nvl(name,'null') in(
'memory_target','sga_target','pga_aggregate_target','pga_aggregate_limit','db_cache_size',
'shared_pool_size','large_pool_size','result_cache_max_size','processes',
'session_cached_cursors','open_cursors','db_securefile','cpu_count',
'parallel_max_servers','job_queue_processes','log_buffer','_b_tree_bitmap_plans',
'use_large_pages','audit_trail','nls_sort','plsql_code_type','resource_manager_plan',
'shared_servers','max_shared_servers','dispatchers','event','undo_retention',
'_highthreshold_undoretention','parallel_adaptive_multi_user','parallel_force_local',
'db_files','db_performance_profile','_srvntfn_max_concurrent_jobs',
'_optimizer_use_feedback','optimizer_dsdir_usage_control',
'_sql_plan_directive_mgmt_control','_fix_control','global_txn_processes',
'_disable_autotune_gtx', '_ges_server_processes','sga_max_size',
'_securefiles_concurrency_estimate','streams_pool_size')
order by name;
You can try to add OR name is null in where caluse.
Because SQL NULL isn't a value. you need to use IS NULL to get it.
select name,display_value
from v$spparameter
where
name in('memory_target','sga_target','pga_aggregate_target','pga_aggregate_limit','db_cache_size','shared_pool_size','large_pool_size','result_cache_max_size','processes','session_cached_cursors','open_cursors','db_securefile','cpu_count','parallel_max_servers','job_queue_processes','log_buffer','_b_tree_bitmap_plans','use_large_pages','audit_trail','nls_sort','plsql_code_type','resource_manager_plan','shared_servers','max_shared_servers','dispatchers','event','undo_retention','_highthreshold_undoretention','parallel_adaptive_multi_user','parallel_force_local','db_files','db_performance_profile','_srvntfn_max_concurrent_jobs','_optimizer_use_feedback','_optimizer_dsdir_usage_control','_sql_plan_directive_mgmt_control','_fix_control','global_txn_processes','_disable_autotune_gtx', '_ges_server_processes','sga_max_size','_securefiles_concurrency_estimate','streams_pool_size')
OR
name is null
order by name;
Almost. You're converting the null value into the string 'null', but you forgot to include it in the "in" list. Just add 'null' to list.
select name,display_value
from v$spparameter where nvl(name,'null') in('null',
'memory_target','sga_target','pga_aggregate_target','pga_aggregate_limit','db_cache_size',
'shared_pool_size','large_pool_size','result_cache_max_size','processes',
'session_cached_cursors','open_cursors','db_securefile','cpu_count',
'parallel_max_servers','job_queue_processes','log_buffer','_b_tree_bitmap_plans',
'use_large_pages','audit_trail','nls_sort','plsql_code_type','resource_manager_plan',
'shared_servers','max_shared_servers','dispatchers','event','undo_retention',
'_highthreshold_undoretention','parallel_adaptive_multi_user','parallel_force_local',
'db_files','db_performance_profile','_srvntfn_max_concurrent_jobs',
'_optimizer_use_feedback','optimizer_dsdir_usage_control',
'_sql_plan_directive_mgmt_control','_fix_control','global_txn_processes',
'_disable_autotune_gtx', '_ges_server_processes','sga_max_size',
'_securefiles_concurrency_estimate','streams_pool_size')
order by name;
Related
I have a table I want to filter data from. I tried the following query
SELECT
SIS, COUNT(*)
FROM DL_SQ_DEV_INT.SMRY_DAILY_TRAILER_REPORT
GROUP BY 1;
Result:
BL,17386
EQ,3242
FIFO,5747
GR,15655
HOLD,13035
LT BL,20566
LT GR,14615
LT OR,14190
LT PU,13877
LT YE,13683
null,223376
OR,15727
PI,3563
PU,16105
RW,200
TA,6
tbd,25302
WH,1945
YE,14510
Now when I add a WHERE clause in it, it filters out the null values. The query is a not equal to (<>). How can I avoid that and still have the null values in my result? Changing null to blank or space?
SELECT
SIS, COUNT(*)
FROM DL_SQ_DEV_INT.SMRY_DAILY_TRAILER_REPORT
WHERE UPPER(TRIM(SIS)) <> 'EQ'
GROUP BY 1;
Result:
BL,17386
FIFO,5747
GR,15655
HOLD,13035
LT BL,20566
LT GR,14615
LT OR,14190
LT PU,13877
LT YE,13683
OR,15727
PI,3563
PU,16105
RW,200
TA,6
tbd,25302
WH,1945
YE,14510
Neither "not equal" nor "equal" will select a value that is NULL.
SQL uses "three-way logic" where an expression can be true or false or unknown. NULL is the absence of any value at all so it cannot be equal to something, and if it cannot be equal to a compared value it also cannot be "not equal", instead it is unknown.
To overcome this you need to treat NULL explicitly in your where clause, to include NULLs use OR SIS IS NULL
SELECT
SIS, COUNT(*)
FROM DL_SQ_DEV_INT.SMRY_DAILY_TRAILER_REPORT
WHERE UPPER(TRIM(SIS)) <> 'EQ' OR SIS IS NULL
GROUP BY 1;
You should use this:
SELECT
SIS, COUNT(*)
FROM DL_SQ_DEV_INT.SMRY_DAILY_TRAILER_REPORT
WHERE TRIM(SIS) IS NULL OR UPPER(TRIM(SIS)) <> 'EQ'
GROUP BY 1;
Why does your WHERE clause removes null values from the result: NULL value means the absence of value or value is unknown, so that you can't compare NULL value using scalar value operator, <> 'EQ' will return unknown or not true.
You could refer more post about NULL value in sql in sof, eg this link or search in gg
select
case when concat('ACC','-',NVL(trim(bvmo.booking),''),'-',NVL(trim(bvmo.org),''),'-',NVL(trim(bvma.sparm),''),'-',NVL(trim(bvmo.id),'') like 'ACC--%' then
NULL ELSE concatconcat('ACC','-',NVL(trim(bvmo.booking),''),'-',NVL(trim(bvmo.org),''),'-',NVL(trim(bvma.sparm),''),'-',NVL(trim(bvmo.id),'') END AS Parent_id
from bvmo
output:
Parent-id
:----------:
ACC-1123-1344--
ACC-4567-6528--
ACC-7890-9827--
ACC-1143-8079--
ACC-1883-8944--
am expecting as the below output where i can remove the "-" in above case condition in which the values are not appearing in respective columns
Expected output:
Parent-id
:----------:
ACC-1123-1344
ACC-4567-6528
ACC-7890-9827
ACC-1143-8079
ACC-1883-8944
Use concat_ws. It should take care of nulls in the way you wanted.
select
concat_ws('-', 'ACC', trim(bvmo.booking), trim(bvmo.org), trim(bvma.sparm), trim(bvmo.id)) AS Parent_id
from bvmo
Running a UNION query in an access database. I've defined every variable as a int since there was a data type mismatch error prompt. This has not resolved the issue. Each of the variables have values of either 1 or 0 and no nulls. Any ideas?
SELECT
CInt(qryGB.BM∞) AS [BM∞],
CInt(qryGB.PM∞) AS [PM∞],
CInt(qryGB.P∞) AS [P∞],
CInt(qryGB.[RAG_B<0]) AS [RAG_B<0],
CInt(qryGB.[RAG_P<0]) AS [RAG_P<0],
CInt(qryGB.[RAG_C<0]) AS [RAG_C<0],
CInt(qryGB.[B<0]) AS [B<0],
CInt(qryGB.[P<0]) AS [P<0],
CInt(qryGB.[C<0]) AS [C<0],
CInt(qryGB.[P-1]) AS [P-1],
CInt(qryGB.[C-1]) AS [C-1],
CInt(qryGB.P0) AS [P0],
CInt(qryGB.C0) AS [C0],
CInt(qryGB.[P+1]) AS [P+1],
CInt(qryGB.[P+2]) AS [P+2],
CInt(qryGB.[P+3]) AS [P+3]
FROM qryGB
UNION ALL SELECT
CInt(qryTMD.BM∞) AS [BM∞],
CInt(qryTMD.PM∞) AS [PM∞],
CInt(qryTMD.P∞) AS [P∞],
CInt(qryTMD.[RAG_B<0]) AS [RAG_B<0],
CInt(qryTMD.[RAG_P<0]) AS [RAG_P<0],
CInt(qryTMD.[RAG_C<0]) AS [RAG_C<0],
CInt(qryTMD.[B<0]) AS [B<0],
CInt(qryTMD.[P<0]) AS [P<0],
CInt(qryTMD.[C<0]) AS [C<0],
CInt(qryTMD.[P-1]) AS [P-1],
CInt(qryTMD.[C-1]) AS [C-1],
CInt(qryTMD.P0) AS [P0],
CInt(qryTMD.C0) AS [C0],
CInt(qryTMD.[P+1]) AS [P+1],
CInt(qryTMD.[P+2]) AS [P+2],
CInt(qryTMD.[P+3]) AS [P+3]
FROM qryTMD;
Check you don't have any nulls in any of the columns.
Access SQL is a little strange when it comes to nulls (noting that Standard SQL nulls are strange to begin with!). For example you can't cast a null to a data type:
SELECT DISTINCT CINT( NULL ) AS null_cast_to_int FROM AnyPopulatedTable;
errors with "Invalid use of Null".
So all Access SQL nulls are of the same type but what type?:
SELECT DISTINCT TYPENAME ( NULL ) AS type_name FROM AnyPopulatedTable;
does not error and returns 'Null' !!
The one thing I can think of is that doing the CInt() conversion during the UNION may be screwing things up. I'd try doing the conversion in subqueries before doing the UNION. Something like:
SELECT
a.[BM∞],
a.[PM∞],
a.[P∞],
a.[RAG_B<0],
a.[RAG_P<0],
a.[RAG_C<0],
a.[B<0],
a.[P<0],
a.[C<0],
a.[P-1],
a.[C-1],
a.[P0],
a.[C0],
a.[P+1],
a.[P+2],
a.[P+3]
FROM
(SELECT
CInt(qryGB.[BM∞]) AS [BM∞],
CInt(qryGB.[PM∞]) AS [PM∞],
CInt(qryGB.[P∞]) AS [P∞],
CInt(qryGB.[RAG_B<0]) AS [RAG_B<0],
CInt(qryGB.[RAG_P<0]) AS [RAG_P<0],
CInt(qryGB.[RAG_C<0]) AS [RAG_C<0],
CInt(qryGB.[B<0]) AS [B<0],
CInt(qryGB.[P<0]) AS [P<0],
CInt(qryGB.[C<0]) AS [C<0],
CInt(qryGB.[P-1]) AS [P-1],
CInt(qryGB.[C-1]) AS [C-1],
CInt(qryGB.[P0]) AS [P0],
CInt(qryGB.[C0]) AS [C0],
CInt(qryGB.[P+1]) AS [P+1],
CInt(qryGB.[P+2]) AS [P+2],
CInt(qryGB.[P+3]) AS [P+3]
FROM qryGB) as a
UNION ALL SELECT
b.[BM∞],
b.[PM∞],
b.[P∞],
b.[RAG_B<0],
b.[RAG_P<0],
b.[RAG_C<0],
b.[B<0],
b.[P<0],
b.[C<0],
b.[P-1],
b.[C-1],
b.[P0],
b.[C0],
b.[P+1],
b.[P+2],
b.[P+3]
FROM
(SELECT
CInt(qryTMD.[BM∞]) AS [BM∞],
CInt(qryTMD.[PM∞]) AS [PM∞],
CInt(qryTMD.[P∞]) AS [P∞],
CInt(qryTMD.[RAG_B<0]) AS [RAG_B<0],
CInt(qryTMD.[RAG_P<0]) AS [RAG_P<0],
CInt(qryTMD.[RAG_C<0]) AS [RAG_C<0],
CInt(qryTMD.[B<0]) AS [B<0],
CInt(qryTMD.[P<0]) AS [P<0],
CInt(qryTMD.[C<0]) AS [C<0],
CInt(qryTMD.[P-1]) AS [P-1],
CInt(qryTMD.[C-1]) AS [C-1],
CInt(qryTMD.[P0]) AS [P0],
CInt(qryTMD.[C0]) AS [C0],
CInt(qryTMD.[P+1]) AS [P+1],
CInt(qryTMD.[P+2]) AS [P+2],
CInt(qryTMD.[P+3]) AS [P+3]
FROM qryTMD) as b
In Oracle 11g, I came across an error for a query and cannot figure why it is erroring on me. Here is the query:
select
main_data.issue_number,
main_data.transaction_number
from
(
select
p1.payment_date,
p1.media_number,
p1.payment_amount,
p1.issue_number,
p1.advice_na_number,
name.name_address_line_1,
name.name_address_line_2,
name.name_address_line_3,
name.name_address_line_4,
name.name_address_line_5,
name.name_address_line_6,
name.name_address_line_7,
name.name_address_city,
name.state_code,
name.address_country_code,
name.zip_code,
name.tax_id_number,
p1.output_tx_number_prin,
p1.output_tx_number_int,
'' as "transaction_number",
p1header.check_account_number
from
p1
left join name on p1.name_address_number = name.name_address_number
left join p1header on p1.issue_number = p1header.issue_number
UNION ALL
select
check.date_of_payment,
check.media_number,
check.payment_amount,
check.issue_number,
check.payee_na_number,
name.name_address_line_1,
name.name_address_line_2,
name.name_address_line_3,
name.name_address_line_4,
name.name_address_line_5,
name.name_address_line_6,
name.name_address_line_7,
name.name_address_city,
name.state_code,
name.address_country_code,
name.zip_code,
name.tax_id_number,
'' as "output_tx_number_prin",
'' as "output_tx_number_int",
check.transaction_number,
check.dda_number as "check_account_number"
from check
left join name on check.payee_na_number = name.name_address_number
) main_data
Selecting individual fields like above will give me an "invalid identifier error". If I do select * then it gives me back the data without any error. What am I doing wrong here? Thank you.
The old quoted identifier problem... see point 9 in the database object naming documentation, and note that Oracle does not recommend using quoted identifiers.
You've put your column alias as lower case inside double-quotes. That means that any references to it also have to be quoted and exactly match the case. So this would work:
select
main_data.issue_number,
main_data."transaction_number"
from
...
But unless you have a burning need to have that alias like that - and I doubt you do as all the identifier names from the actual table columns are not quoted - it would be simpler to remove the double quotes from the inner selects:
select
main_data.issue_number,
main_data.transaction_number
from
(
select
...
'' as transaction_number,
p1header.check_account_number
...
UNION ALL
select
...
'' as output_tx_number_prin,
'' as output_tx_number_int,
check.transaction_number,
check.dda_number as check_account_number
...
You don't actually need to alias the columns in the second branch of the union; the column identifiers will all be taken from the first branch.
In MySQL, is there a way to set the "total" fields to zero if they are NULL?
Here is what I have:
SELECT uo.order_id, uo.order_total, uo.order_status,
(SELECT SUM(uop.price * uop.qty)
FROM uc_order_products uop
WHERE uo.order_id = uop.order_id
) AS products_subtotal,
(SELECT SUM(upr.amount)
FROM uc_payment_receipts upr
WHERE uo.order_id = upr.order_id
) AS payment_received,
(SELECT SUM(uoli.amount)
FROM uc_order_line_items uoli
WHERE uo.order_id = uoli.order_id
) AS line_item_subtotal
FROM uc_orders uo
WHERE uo.order_status NOT IN ("future", "canceled")
AND uo.uid = 4172;
The data comes out fine, except the NULL fields should be 0.
How can I return 0 for NULL in MySQL?
Use IFNULL:
IFNULL(expr1, 0)
From the documentation:
If expr1 is not NULL, IFNULL() returns expr1; otherwise it returns expr2. IFNULL() returns a numeric or string value, depending on the context in which it is used.
You can use coalesce(column_name,0) instead of just column_name. The coalesce function returns the first non-NULL value in the list.
I should mention that per-row functions like this are usually problematic for scalability. If you think your database may get to be a decent size, it's often better to use extra columns and triggers to move the cost from the select to the insert/update.
This amortises the cost assuming your database is read more often than written (and most of them are).
None of the above answers were complete for me.
If your field is named field, so the selector should be the following one:
IFNULL(`field`,0) AS field
For example in a SELECT query:
SELECT IFNULL(`field`,0) AS field, `otherfield` FROM `mytable`
Hope this can help someone to not waste time.
You can try something like this
IFNULL(NULLIF(X, '' ), 0)
Attribute X is assumed to be empty if it is an empty String, so after that you can declare as a zero instead of last value. In another case, it would remain its original value.
Anyway, just to give another way to do that.
Yes IFNULL function will be working to achieve your desired result.
SELECT uo.order_id, uo.order_total, uo.order_status,
(SELECT IFNULL(SUM(uop.price * uop.qty),0)
FROM uc_order_products uop
WHERE uo.order_id = uop.order_id
) AS products_subtotal,
(SELECT IFNULL(SUM(upr.amount),0)
FROM uc_payment_receipts upr
WHERE uo.order_id = upr.order_id
) AS payment_received,
(SELECT IFNULL(SUM(uoli.amount),0)
FROM uc_order_line_items uoli
WHERE uo.order_id = uoli.order_id
) AS line_item_subtotal
FROM uc_orders uo
WHERE uo.order_status NOT IN ("future", "canceled")
AND uo.uid = 4172;