I'm trying to write a stored proc (SP) in Sybase.
The SP takes 5 varchar parameters.
Based on the parameters passed, I want to construct the column names to be selected from a particular table.
The below works:
DECLARE #TEST VARCHAR(50)
SELECT #TEST = "country"
--print #TEST
execute("SELECT DISTINCT id_country AS id_level, Country AS nm_level
FROM tempdb..tbl_books INNER JOIN
(tbl_ch2_bespoke_report INNER JOIN tbl_ch2_bespoke_rpt_mapping
ON tbl_ch2_bespoke_report.id_report = tbl_ch2_bespoke_rpt_mapping.id_report)
ON id_" + #TEST + "= tbl_ch2_bespoke_rpt_mapping.id_pnl_level
WHERE tbl_ch2_bespoke_report.id_report = 14")
but gives me multiple results:
1 1 row(s) affected.
id_level nm_level
1 4376 XYZ
2 4340 ABC
I would like to however only obtain the 2nd result.
Do I need to necessarily use dynamic SQL to achieve this?
Many thanks for your help.
--Chapax
If I'm understanding you correctly, you'd like to eliminate the "1 row(s) affected." line. If so, the "set nocount on/off" option should do the trick:
declare #something int
declare #query varchar(2000)
set nocount on
select #something=30
select #query = "SELECT * FROM a_table where id_row = " + convert(varchar(10),#something)
set nocount off
exec (#query)
or
declare #something int
declare #query varchar(2000)
set nocount on
select #something=30
set nocount off
SELECT * FROM a_table where id_row = #something
SET NOCOUNT {ON|OFF} to turn off row count messages.
Yes, you need to you dynamic SQL to change the structure or content of the result set (either the column list or the WHERE clause).
Related
Using PostgreSQL I can have multiple rows of json objects.
select (select ROW_TO_JSON(_) from (select c.name, c.age) as _) as jsonresult from employee as c
This gives me this result:
{"age":65,"name":"NAME"}
{"age":21,"name":"SURNAME"}
But in SqlServer when I use the FOR JSON AUTO clause it gives me an array of json objects instead of multiple rows.
select c.name, c.age from customer c FOR JSON AUTO
[{"age":65,"name":"NAME"},{"age":21,"name":"SURNAME"}]
How to get the same result format in SqlServer ?
By constructing separate JSON in each individual row:
SELECT (SELECT [age], [name] FOR JSON PATH, WITHOUT_ARRAY_WRAPPER)
FROM customer
There is an alternative form that doesn't require you to know the table structure (but likely has worse performance because it may generate a large intermediate JSON):
SELECT [value] FROM OPENJSON(
(SELECT * FROM customer FOR JSON PATH)
)
no structure better performance
SELECT c.id, jdata.*
FROM customer c
cross apply
(SELECT * FROM customer jc where jc.id = c.id FOR JSON PATH , WITHOUT_ARRAY_WRAPPER) jdata (jdata)
Same as Barak Yellin but more lazy:
1-Create this proc
CREATE PROC PRC_SELECT_JSON(#TBL VARCHAR(100), #COLS VARCHAR(1000)='D.*') AS BEGIN
EXEC('
SELECT X.O FROM ' + #TBL + ' D
CROSS APPLY (
SELECT ' + #COLS + '
FOR JSON PATH, WITHOUT_ARRAY_WRAPPER
) X (O)
')
END
2-Can use either all columns or specific columns:
CREATE TABLE #TEST ( X INT, Y VARCHAR(10), Z DATE )
INSERT #TEST VALUES (123, 'TEST1', GETDATE())
INSERT #TEST VALUES (124, 'TEST2', GETDATE())
EXEC PRC_SELECT_JSON #TEST
EXEC PRC_SELECT_JSON #TEST, 'X, Y'
If you're using PHP add SET NOCOUNT ON; in the first row (why?).
Need help in writing u-sql query to fetch me top n percentage of rows.I have one dataset from which need to take total count of rows and take top 3% rows from dataset based on col1. Code which I have written is :
#count = SELECT Convert.ToInt32(COUNT(*)) AS cnt FROM #telData;
#count1=SELECT cnt/100 AS cnt1 FROM #count;
DECLARE #cnt int=SELECT Convert.ToInt32(cnt1*3) FROM #count1;
#EngineFailureData=
SELECT vin,accelerator_pedal_position,enginefailure=1
FROM #telData
ORDER BY accelerator_pedal_position DESC
FETCH #cnt ROWS;
#telData is my basic dataset.Thanks for help.
Some comments first:
FETCH currently only takes literals as arguments (https://msdn.microsoft.com/en-us/library/azure/mt621321.aspx)
#var = SELECT ... will assign the name #var to the rowset expression that starts with the SELECT. U-SQL (currently) does not provide you with stateful scalar variable assignment from query results. Instead you would use a CROSS JOIN or other JOIN to join the scalar value in.
Now to the solution:
To get the percentage, take a look at the ROW_NUMBER() and PERCENT_RANK() functions. For example, the following shows you how to use either to answer your question. Given the simpler code for PERCENT_RANK() (no need for the MAX() and CROSS JOIN), I would suggest that solution.
DECLARE #percentage double = 0.25; // 25%
#data = SELECT *
FROM (VALUES(1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(11),(12),(13),(14),(15),(16),(17),(18),(19),(20)
) AS T(pos);
#data =
SELECT PERCENT_RANK() OVER(ORDER BY pos) AS p_rank,
ROW_NUMBER() OVER(ORDER BY pos) AS r_no,
pos
FROM #data;
#cut_off =
SELECT ((double) MAX(r_no)) * (1.0 - #percentage) AS max_r
FROM #data;
#r1 =
SELECT *
FROM #data CROSS JOIN #cut_off
WHERE ((double) r_no) > max_r;
#r2 =
SELECT *
FROM #data
WHERE p_rank >= 1.0 - #percentage;
OUTPUT #r1
TO "/output/top_perc1.csv"
ORDER BY p_rank DESC
USING Outputters.Csv();
OUTPUT #r2
TO "/output/top_perc2.csv"
ORDER BY p_rank DESC
USING Outputters.Csv();
I have a problem with string.
I have a variable #Rights which looks like 'ASD,ZXC,QWE,IOP,JKL'
What I need to do is use this string in
SELECT * FROM dbo.Example
WHERE Rights IN (#Rights)
Problem is that I need to convert:
'ASD,ZXC,QWE,IOP,JKL'
to:
'ASD','ZXC','QWE','IOP','JKL'
How can I do this?
you can create a split function
CREATE FUNCTION [dbo].[Split]
(
#String NVARCHAR(4000),
#Delimiter NCHAR(1)
)
RETURNS TABLE
AS
RETURN
(
WITH Split(stpos,endpos)
AS(
SELECT 0 AS stpos, CHARINDEX(#Delimiter,#String) AS endpos
UNION ALL
SELECT endpos+1, CHARINDEX(#Delimiter,#String,endpos+1)
FROM Split
WHERE endpos > 0
)
SELECT 'Id' = ROW_NUMBER() OVER (ORDER BY (SELECT 1)),
'Data' = SUBSTRING(#String,stpos,COALESCE(NULLIF(endpos,0),LEN(#String)+1)-stpos)
FROM Split
)
GO
and after you can convert the string in a temp table
DECLARE #Rights NVARCHAR(128)
SET #Rights = 'ASD,ZXC,QWE,IOP,JKL'
SELECT *
INTO #Temp
FROM dbo.Split(#Rights , ',')
and after you can use it in your query like this
SELECT * FROM dbo.Example
WHERE Rights IN (SELECT Data FROM #Temp)
You can try like this:
DECLARE #xml xml, #str varchar(100), #delimiter varchar(10)
SET #str = 'ASD,ZXC,QWE,IOP,JKL'
SET #delimiter = ','
SET #xml = cast(('<X>'+replace(#str, #delimiter, '</X><X>')+'</X>') as xml)
SELECT C.value('.', 'varchar(10)') as value FROM #xml.nodes('X') as X(C)
SQL DEMO
You can use Dynamic SQL:
LiveDemo
-- sample data
CREATE TABLE #Example(ID INT IDENTITY(1,1), Rights VARCHAR(100));
INSERT INTO #Example VALUES ('ASD'), ('ABC'), ('IOP');
DECLARE #Rights NVARCHAR(MAX) = 'ASD,ZXC,QWE,IOP,JKL';
DECLARE #sql NVARCHAR(MAX) =
N'SELECT *
FROM #Example
WHERE Rights IN (''<placeholder>'')';
SET #sql = REPLACE(#sql, '<placeholder>', REPLACE(#Rights, ',', ''','''));
-- SELECT #sql; -- for debug
EXEC dbo.sp_executesql
#sql;
But you should reconsider using Table Valued Parameter instead.
How do I increment field of table using varchar. Here an example of what I want to have:
Mark 00001
Mark 00002
Mark 00003
Jaques 00001
Jaques 00002
Jaques 00003
Here is my example It can be useful for other people thanks to those who have helped me a lot thank you
The table is
`CREATE TABLE [dbo].[TAG_Sinistre](
[ID] [int] IDENTITY(1,1) NOT NULL,
[ref_ag] [varchar](7) NULL,
[ref_sinistre] [varchar](7) NULL,
)`
The stored procedure is
create PROC [dbo].[sp_Add_AgSinistre]
#ref_ag varchar (7)
AS BEGIN
declare #id int
DECLARE #ref_sin VARCHAR
SET #id = (SELECT ISNULL(MAX(CAST(ID AS INT)), 0) + 1
FROM TAG_Sinistre where ref_ag=#ref_ag
)
select #ref_sin=right('000000'+CAST(#ref_sin AS VARCHAR(6)),6)
BEGIN
INSERT into TAG_Sinistre(ref_ag,ref_sinistre)
VALUES (#ref_ag,#ref_sin)
Assuming the CompanyName field is UNIQUE, you could get the MAX added value, and increment that?
DECLARE #CurrentSequence INT
SET #CurrentSequence = (SELECT MAX(SequenceId)
FROM TableName WHERE CompanyName = #CompanyName)
INSERT INTO TableName
(CompanyName, SequenceId)
VALUES
(#CompanyName, #CurrentSequence+1)
Your StoredProc would pass in the Company Name as #CompanyName. Obviously, this is a naive approach, and I'm not including what would happen if multiple attempts to update the company would happen simultaneously, but there's no mention of that ion the question.
EDIT: Based on comments
DECLARE #maxSeq INT
SET #maxSeq = (SELECT ISNULL(MAX(CAST(SequenceId AS INT)), 0) + 1 FROM
TableName WHERE CompanyName = #CompanyName)
INSERT INTO TableName
(CompanyName, SequenceId)
VALUES
(#CompanyName, right('000000'+CAST(#maxSeq AS VARCHAR(7)),7))
As I said, I would look to use an INT, and get the UI to present the sequence as you want, instead of casting etc in the DB.
EDIT 2: Added Fiddle
SQL Fiddle
Assuming that your columns always look like those specified above.
DB Trigger (MS-SQL) --> Pseudocode/Untested:
CREATE TRIGGER [dbo].[YourTrigger]
ON [dbo].[YourTable]
INSTEAD OF INSERT
AS
BEGIN
DECLARE #maxVal int
-- PSEUDOCODE!!!
SELECT #maxVal = MAX(CAST(dbo.RegexReplace( '.*?(\d+)', myColumn, '$1') AS INT ))
FROM YourTable
INSERT INTO YourTable
SELECT myColumn + ' ' + #maxVal FROM inserted
END
Use insert now like this:
INSERT INTO YourTable values('Jaques')
I'm looking for a SAS Code that works just like "VLOOKUP" function in Excel.
I have two tables:
table_1 has an ID column with some other columns in it with 10 rows. Table_2 has two columns: ID and Definition with 50 rows. I want to define a new variable "Definition " in table_1 and lookup the ID values from table_2.
I haven't really tried anything other than merge. but merge keeps all the extra 40 variables from table_2 and that's not what I like.
Thanks, SE
The simplest way is to use the keep option on your merge statement.
data result;
merge table_1 (in=a) table_2 (in=b keep=id definition);
by id;
if a;
run;
An alternative that means you don't have to sort your datasets is to use proc sql.
proc sql;
create table result as
select a.*,
b.definition
from table_1 a
left join table_2 b on a.id = b.id;
quit;
Finally, there is the hash table option if table_2 is small:
data result;
if _n_ = 1 then do;
declare hash b(dataset:'table_2');
b.definekey('id');
b.definedata('definition');
b.definedone();
call missing(definition);
end;
set table_1;
b.find();
run;
Here is one very useful (and often very fast) method specifically for 1:1 matching, which is what VLOOKUP does. You create a Format or Informat with the match-variable and the lookup-result, and put or input the match-variable in the master table.
data class_income;
set sashelp.class(keep=name);
income = ceil(12*ranuni(7));
run;
data for_format;
set class_income end=eof;
retain fmtname 'INCOMEI';
start=name;
label=income;
type='i'; *i=informat numeric, j=informat character, n=format numeric, c=format character;
output;
if eof then do;
hlo='o'; *hlo contains some flags, o means OTHER for nonmatching records;
start=' ';
label=.;
output;
end;
run;
proc format cntlin=for_format;
quit;
data class;
set sashelp.class;
income = input(name,INCOMEI.);
run;