I have a where condition which I want to run over a set of tables in my Azure Data Explorer DB. I found "Find in ()" operator in Kusto query quite useful, works fine when I pass list of tables as intended.
find withsource=DataType in (AppServiceFileAuditLogs,AzureDiagnostics)
where TimeGenerated > ago(31d)
project _ResourceId, _BilledSize, _IsBillable
| where _IsBillable == true
| summarize BillableDataBytes = sum(_BilledSize) by _ResourceId, DataType | sort by BillableDataBytes nulls last
However, in my scenario, I would like to decide the list of tables at run time using another query.
Usage
| where TimeGenerated > ago(32d)
| where StartTime >= startofday(ago(31d)) and EndTime < startofday(now())
| where IsBillable == true
| summarize BillableDataGB = sum(Quantity) / 1000 by DataType
| sort by BillableDataGB desc
|project DataType
find withsource=DataType in (<pass resulting table expression from above query here as comma separated list of tables>)
where TimeGenerated > ago(31d)
project _ResourceId, _BilledSize, _IsBillable
| where _IsBillable == true
| summarize BillableDataBytes = sum(_BilledSize) by _ResourceId, DataType | sort by BillableDataBytes nulls last
Found some examples of passing all tables in a database or cluster using wildcards but that does not fit my scenario. Can somebody help me here.
Here is one way to achieve this:
let Tables = toscalar(Usage
| where TimeGenerated > ago(32d)
| where StartTime >= startofday(ago(31d)) and EndTime < startofday(now())
| where IsBillable == true
| summarize by DataType);
union withsource=T *
| where T in (Tables)
| count
Note that there is a significance to the toscalar expression, it precalculates the list of tables and optimizes the filter on the union expression. I also updated your query to avoid unnecessary work.
I need help creating a single SELECT statement as part of a CREAT VIEW statement that contains multiple, separate filtering or grouping requirements.
I am working on an SQLite database to track usage of our local food pantry, where we have two types of visitors, “Scheduled” or “Drop-In”, visiting on different days. One of the central tables is the “visit_log” table that tracks each visit by date, time, type of visit, and people in the household.
I’m trying to create a VIEW that summarizes that “visit_log” grouped by the visit_date, and for both number of records and SUM of household size, displaying the number of “Drop-Ins”, the number of “Scheduled” and the total of the two types.
Here is the “visit_log”
CREATE TABLE "visit_log" ("visit_date" DATE, "visit_time" TIME, "client_relation" TEXT, "household_size" INTEGER)
Here is a sample of the “visit_log” table’s content. (We have not started recording the visit_time yet, so those values are blank).
"visit_date","visit_time","client_relation","household_size"
"6/9/20","","Scheduled","1"
"6/9/20","","Scheduled","1"
"6/9/20","","Drop-In","2"
"6/9/20","","Drop-In","3"
"6/9/20","","Drop-In","8"
"6/9/20","","Drop-In","5"
"6/16/2020","","Scheduled","1"
"6/16/2020","","Scheduled","1"
"6/16/2020","","Drop-In","4"
"6/16/2020","","Drop-In","5"
"6/16/2020","","Drop-In","2"
"6/16/2020","","Drop-In","2"
"6/16/2020","","Drop-In","5"
"6/16/2020","","Drop-In","1"
I can create three separate VIEW, one for each type and one for the two combined. But my goal is to have the results of these three VIEWs in one.
Here are the three VIEWs. First is for the two client types combined.
CREATE VIEW "visit_summary" AS SELECT
visit_date,
COUNT (*) AS households_total,
SUM (household_size) AS individuals_total
FROM
"visit_log"
GROUP By visit_date
This yields
"visit_date","households_total","individuals_total"
"06/09/2020","12","44"
"06/16/2020","8","21"
"06/23/2020","7","20"
"06/30/2020","10","22"
"07/07/2020","7","18"
Next is the VIEW for the Drop-Ins
CREATE VIEW "visit_summary_dropin" AS SELECT
visit_date,
COUNT (*) AS households_dropin,
SUM (household_size) AS individuals_dropin
FROM
"visit_log"
WHERE client_relation = "Drop-In"
GROUP By visit_date
This yields
"visit_date","households_dropin","individuals_dropin"
"06/09/2020","10","42"
"06/16/2020","6","19"
"06/23/2020","4","13"
"06/30/2020","6","12"
"07/07/2020","6","16"
Finally is the VIEW for the Scheduled
CREATE VIEW "visit_summary_scheduled" AS SELECT
visit_date,
COUNT (*) AS households_schedualed,
SUM (household_size) AS individuals_scheduled
FROM
"visit_log"
WHERE client_relation = "Scheduled"
GROUP By visit_date
This yields
"visit_date","households_schedualed","individuals_scheduled"
"06/09/2020","2","2"
"06/16/2020","2","2"
"06/23/2020","3","7"
"06/30/2020","4","10"
"07/07/2020","1","2"
What I'm hoping to create is a single VIEW that yields
"visit_date","households_total","individuals_total","households_dropin","individuals_dropin","households_schedualed","individuals_scheduled"
"06/09/2020","12","44","10","42","2","2"
etc…
So my ultimate question, finally, is how to create a single VIEW containing something like multiple WHERE classes to define different columns?
You can do it with conditional aggregation:
CREATE VIEW visit_summary_scheduled_all AS
SELECT visit_date,
COUNT(*) households_total,
SUM(household_size) individuals_total,
SUM(client_relation = 'Drop-In') households_dropin,
SUM(CASE WHEN client_relation = 'Drop-In' THEN household_size END) individuals_dropin,
SUM(client_relation = 'Scheduled') households_scheduled,
SUM(CASE WHEN client_relation = 'Scheduled' THEN household_size END) individuals_scheduled
FROM visit_log
GROUP By visit_date
See the demo.
Results:
| visit_date | households_total | individuals_total | households_dropin | individuals_dropin | households_scheduled | individuals_scheduled |
| ---------- | ---------------- | ----------------- | ----------------- | ------------------ | -------------------- | --------------------- |
| 6/16/2020 | 8 | 21 | 6 | 19 | 2 | 2 |
| 6/9/20 | 6 | 20 | 4 | 18 | 2 | 2 |
Consider that my SQLite table has the following schema,
|'''''''''''''''''''''''''''''''''''''
| unique_id(TXT) | object_data(BLOB) |
|'''''''''''''''''''''''''''''''''''''
| | |
| | |
| | |
''''''''''''''''''''''''''''''''''''''
Assume that the row_id property is enabled, and so my question is, for a given unique_id, is it possible to fetch the next 50 records from the table,
using a single SQL query? (Using the row_id property)
Try getting result through this method.
Select * from table_name [WHERE conditions] Limit 50 offset (Select row_id from table_name where unique_id = x);
I have a table with this structure:
id | IDs | Name | Type
1 | 10 | A | 1
2 | 11 | B | 1
3 | 12 | C | 2
4 | 13 | D | 3
except id nothing else is a FOREIGN or PRIMARY KEY. I want to select a row based on it's column values that are not PRIMARY KEY. I have tried the following syntax but it yields no results.
SELECT * FROM MyTable WHERE Name = 'A', Type = 1;
what am I doing wrong? What is exactly returned by a SELECT statement? I'm totally new to Data Base and I'm currently experimenting and trying to learn it. so far my search has not yield any results regarding this case.
Use and to add multiple conditions to your query
SELECT *
FROM MyTable
WHERE Name = 'A'
AND Type = 1;
I have select query like this
SELECT * FROM ACTITIVY WHERE CODE in ('L','D')
Instead of hardcording the values in IN PARAMETER I have created a PARAM table. The param table has the below values
CODE | CODE_VAL | ACTIVE
TRIGGER_XM | 'L','D' | Y
so when i rewrite the query as below
select * from ops_ACTITIVY WHERE CODE IN (
SELECT CODE_VAL FROM OPS_CONFIG_PARAMETER
WHERE CODE='TRIGGER_XML' AND ACTIVE='Y')
It doesn't work any idea how to resolve this??
You may try like this:
select * from ops_ACTITIVY t1
WHERE t1.CODE IN ( SELECT CODE_VAL FROM OPS_CONFIG_PARAMETER t2
WHERE t2.CODE='TRIGGER_XML' AND t2.ACTIVE='Y' )
As you are checking for the existence of a string inside another string you could try something like this:
select * from activity a where (
select instr(b.code_val, a.code)
from param b
where b.code = 'TRIGGER_XM'
AND active = 'Y'
) > 0;
But it will most likely only work as long as as you have singlechar codes.
Worked for me at: SQL Fiddle
which table are you really using? ACTITIVY or ops_ACTITIVY?
Assuming that those tables are the same, i would suggest that your PARAMETERS Table have the below values:
| CODE | CODE_VAL | ACTIVE |
| ----------- ----------- -------------
| TRIGGER_XM | L | Y |
| TRIGGER_XM | D | Y |
It is much more manageable, and i think makes much more sense to separate the Code Values of L and D in case you only need to select one of them.
Now, the query below would surely fetch both Codes with 'L' and 'D' values from the ops_ACTITIVY table:
select *
from ops_ACTITIVY
WHERE CODE IN (SELECT CODE_VAL
FROM OPS_CONFIG_PARAMETER
WHERE CODE ='TRIGGER_XML'
AND ACTIVE = 'Y');