In my code, query is not executed.
PreparedStatement ps1 =cn.prepareStatement("select
count(OperatorName),sum(Numberofbuses) from REDBUS_OPERATOR ");
rs = ps1.executeQuery();
while(rs.next())
{
int count_operators=rs.getInt(1);
int Nob=rs.getInt(2);
}
Here is my table defination.
Name Null Type
TRAVELDIRECTORYNAMES VARCHAR2(100)
URL_LINKS VARCHAR2(100)
OPERATORNAME VARCHAR2(100)
BUSTYPE VARCHAR2(100)
NUMBEROFBUSES VARCHAR2(2000)
NUMBEROFROUTES VARCHAR2(2000)
ADDRESS VARCHAR2(4000)
this is my fields my table name is REDBUS_OPERATOR.
Related
I have two snowflake tables as below
TEST1
create OR REPLACE table TEST1 (
id varchar(100),
name varchar(100),
org VARCHAR(64)
);
INSERT INTO TEST1 values (100, 'ABC', null);
INSERT INTO TEST1 values (200, 'XYZ', null);
INSERT INTO TEST1 values (300, 'VBN', null);
CONTROL
create OR REPLACE table CONTROL (
KEY_COLUMNS VARCHAR,
TABLE_NAME VARCHAR,
org VARCHAR
);
INSERT INTO CONTROL values ('id,name, address','TEST1','Z');
INSERT INTO CONTROL values ('id,name, address','TEST2','T');
I have created a stored procedure which updates column 'org' in TEST1 table with the values from CONTROL table (column org) where table name is TEST1.
CREATE OR REPLACE PROCEDURE TEST(source_tbl VARCHAR)
RETURNS string
LANGUAGE SQL
AS
$$
DECLARE
query1 STRING;
BEGIN
QUERY1 := 'update TEST1 set ORG = (select org from CONTROL WHERE TABLE_NAME = ''source_tbl'');';
EXECUTE IMMEDIATE :QUERY1;
RETURN :QUERY1;
END;
$$;
call TEST((select TABLE_NAME from CONTROL WHERE TABLE_NAME = 'TEST1'));
expected output
My output
The parameter should be bound variable instead of passing as the string constant ''source_tbl'':
CREATE OR REPLACE PROCEDURE TEST(source_tbl VARCHAR)
RETURNS string
LANGUAGE SQL
AS
$$
DECLARE
query1 STRING;
BEGIN
QUERY1 := 'update TEST1 set ORG = (select org from CONTROL WHERE TABLE_NAME = ?);';
EXECUTE IMMEDIATE :QUERY1 USING (SOURCE_TBL);
RETURN :QUERY1;
END;
$$
Related: EXECUTE IMMEDIATE:
EXECUTE IMMEDIATE '<string_literal>'
[ USING (bind_variable_1 [, bind_variable_2 ...] ) ] ;
I have created one macro in Teradata, now wish to call that macro through Stored Procedure (in Teradata only). The SQL part belongs to macro.
I wrote this procedure in case if execution of macro is not possible through procedure.
Kindly suggest both the option.
CREATE PROCEDURE MDM_STAGE.match_sqls_proc
(
in fname VARCHAR(30),
in match_frst_name VARCHAR (100),
in lname VARCHAR(30),
in match_last_name VARCHAR (100),
in addr1 VARCHAR(1000),
in zip_cd_base varchar(10),
in email VARCHAR(30),
in phone VARCHAR(30),
out msgs VARCHAR(10)
-- INOUT errstr VARCHAR(30)
)
begin
DECLARE SQLTEXT2 VARCHAR (10) ;
DECLARE TBL_COUNT INT ;
select count (*) into :TBL_COUNT from
(
SELECT
CUST.CUST_ID,
CUST.FRST_NAME,
CUST.MATCH_FRST_NAME,
CUST.LAST_NAME,
CUST.MATCH_LAST_NAME,
CUST.GNDR_TYPE_CD,
STREET_ADDR.ADDR_LN_1_TXT,
STREET_ADDR.ADDR_LN_2_TXT,
STREET_ADDR.ADDR_LN_3_TXT,
cast (coalesce (STREET_ADDR.ADDR_LN_1_TXT,'') || ' ' || coalesce
(STREET_ADDR.ADDR_LN_2_TXT,'' ) as varchar (1000)) as addr,
STREET_ADDR.CITY_NAME,
STREET_ADDR.POSTL_CD,
STREET_ADDR.STREET_ADDR_ID,
STREET_ADDR.ADDR_SBTYPE_CD,
ELCTRNC_ADDR.ELCTRNC_ADDR_ID,
ELCTRNC_ADDR.ELCTRNC_ADDR_SBTYPE_CD,
ELCTRNC_ADDR.ELCTRNC_ADDR_TXT,
TLPHN_NUM.TLPHN_LN_NUM,
TLPHN_NUM.TLPHN_NUM_ID
FROM
MDM_STAGE.REF_CUST_V CUST
LEFT OUTER JOIN
MDM_STAGE.REF_STREET_ADDR_V STREET_ADDR
ON
CUST.CUST_ID = STREET_ADDR.CUST_ID
AND
--RDM_ADDRSIM (STREET_ADDR.ADDR_LN_1_TXT ,'2285Main Street' ) =1
RDM_ADDRSIM ( cast (coalesce (STREET_ADDR.ADDR_LN_1_TXT,'') || ' ' ||
coalesce (STREET_ADDR.ADDR_LN_2_TXT,'' ) as varchar (1000)) ,:addr1) =1
AND
SUBSTR(STREET_ADDR.POSTL_CD,0,6) = (:zip_cd_base)
LEFT OUTER JOIN
MDM_STAGE.REF_ELCTRNC_ADDR_V ELCTRNC_ADDR
ON
CUST.CUST_ID = ELCTRNC_ADDR.CUST_ID
/*AND
STREET_ADDR.ADDR_SBTYPE_CD = ELCTRNC_ADDR.ELCTRNC_ADDR_SBTYPE_CD*/
AND
ELCTRNC_ADDR.ELCTRNC_ADDR_TXT= (:email)
LEFT OUTER JOIN
MDM_STAGE.REF_TLPHN_NUM_V TLPHN_NUM
ON
CUST.CUST_ID = TLPHN_NUM.CUST_ID
/*AND
STREET_ADDR.ADDR_SBTYPE_CD = TLPHN_NUM.ADDR_SBTYPE_CD*/
AND
TLPHN_NUM.TLPHN_LN_NUM = (:phone)
WHERE
(RDM_sndx(COALESCE(CUST.Match_FRST_NAME,CUST.CUST_ID))=RDM_sndx(:match_frst_name)
AND
RDM_sndx(COALESCE(STRTOK(CUST.Match_LAST_NAME,' ',1),CUST.CUST_ID))=RDM_SNDX(:match_last_name)
)
AND
(
TLPHN_NUM.CUST_ID IS NOT NULL
OR
ELCTRNC_ADDR.CUST_ID IS NOT NULL
OR
STREET_ADDR.CUST_ID IS NOT NULL
) A
;
IF ( TBL_COUNT > 0 ) THEN SET SQLTEXT2 = 'Match' ;
ELSE
SET Msgs = 'Non-Match' ;
END IF;
end;
Error message -
SPL1027:E(L88), Missing/Invalid SQL statement'E(3707):Syntax error, expected something like an 'EXCEPT' keyword or an 'UNION' keyword or a 'MINUS' keyword between ')' and the word 'A'.'.
No idea, what to add between the word 'A' and ')'. Tried all the possibility but not successful. Not sure how to pass the value of SQL into the 'count' as later call procedure condition is based on that count only.
I have an int[] and pass it as parameter to a procedure, when the method is called, no error is reported but nothing is updated in the database. There may be something wrong in my Add() since the Stored Procedure is written by another programmer. I cannot modify this stored procedure so everything must be solved in the Add().
FYI, the Add() takes an array of userIDs and a groupID as parameters, format them and run the stored procedure. The stored procedure inserts userIDs and groupID into the DB
For example:
if userIDs=[1,2,3] and groupID=4,
then I want the following data to be inserted into the DB
userID groupID
1 4
2 4
3 4
The stored procedure
USE [xyz]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[spSaveSomething]
#groupID INT,
#userIDs TEXT
AS
BEGIN
SET NOCOUNT ON;
DECLARE #handle INT
EXEC sp_xml_preparedocument #handle OUTPUT, #userIDs
DELETE FROM tbl1 WHERE i_GroupID = #groupID AND i_NetworkUserID IN (SELECT [ID] FROM OPENXML (#handle, 'ROOT/VAL', 1) WITH ([ID] INT))
INSERT INTO tbl1 (i_NetworkUserID, i_GroupID)
SELECT [ID], #groupID FROM OPENXML (#handle, 'ROOT/VAL', 1) WITH ([ID] INT)
EXEC sp_xml_removedocument #handle
END
The Add()
public void AddUsers(int[] UserIDs, int GroupID)
{
List<int> testList = new List<int>();
foreach (int id in UserIDs)
{
testList.Add(id);
}
XmlSerializer xs = new XmlSerializer(typeof(List<int>));
MemoryStream ms = new MemoryStream();
xs.Serialize(ms, testList);
string resultXML = UTF8Encoding.UTF8.GetString(ms.ToArray());
SqlParameter param1 = new SqlParameter("#userIDs", resultXML);
SqlParameter param2 = new SqlParameter("#groupID", GroupID);
context.Database.ExecuteSqlCommand("spSaveSomething #groupID, #userIDs",
param2, param1);
}
Convert the int[] into a string with Comma seprated and then in Stored Prodedure, us in ie
WHERE i_NetworkUserID in #UserIds
for me, your approach a little bit complicated.
I suggest to rewrite your procedure like
alter procedure [dbo].[spSaveSomething]
(
#groupID int,
#userIDs nvarchar(max)
)
as
begin
set nocount on
declare #tmp_Users table (ID int primary key)
insert into #tmp_Users
select T.C.value('.', 'int')
from #userIDs.nodes('List/ID') as T(C)
delete from tbl1
where
i_GroupID = #group_ID and
i_NetworkUserID in (select ID from #tmp_Users)
insert into tbl1 (i_NetworkUserID, i_GroupID)
select ID, #groupID
from #tmp_Users
-- actually it's strange - you deleting users and then inserting
-- may be you wanted to do this:
-- delete from tbl1
-- where
-- i_GroupID = #group_ID and
-- i_NetworkUserID not in (select ID from #tmp_Users)
-- insert into tbl1 (i_NetworkUserID, i_GroupID)
-- select U.ID, #groupID
-- from #tmp_Users as U
-- where
-- not exists (
-- select T.*
-- from tbl1 as T
-- where T.i_GroupID = #group_ID and T.i_NetworkUserID = U.ID
-- )
end
and your xml generation like
var userIDs = new List<int>() { 1, 2, 3 };
var userXML = new XElement("List", a.Select(x => new XElement("ID", x))).ToString();
// so userXML = "<List><ID>1</ID><ID>2</ID><ID>3</ID></List>"
hope that helps
I have a quick question about Dapper. I have a query that returns 4 tables.
Three tables have just one integer column. Call them field1, field2, and field3.
The 4th table has 5 columns say:
A,B,C,D,E.
I have made an object called ResultSet that has all the fields from the 4 tables
public class ResultSet
{
int field1;
int field2;
int field3;
string A;
string B;
string C;
string D;
string E
}
How do I map the results to the ResultSet object?
Currently I am using QueryMultiple to get the desired result. But it is only mapping the 1st 3 columns. A,B,C,D,and E are all null.
I do not want to use a Union to get all the Fields in just one single table.
You should be able to achieve this by handing the connection.Query extension method an appropriate parameterised SQL statement, and pass it your object as the Type parameter.
Dapper will then map your query to the object magically, assuming you alias the items in the select list appropriately (ie, alias them with the corresponding property name of your object).
Something along these lines should work:
public class SomeObject
{
public int Field1 {get; set;}
public int Field2 {get; set;}
public int A {get; set;}
public int B {get; set;}
public int C {get; set;}
public int D {get; set;}
}
using(var connection = SomeConnectionFactory.GetConnection())
{
var yourObject =
connection.Query<SomeObject>("select tab1.someThing as Field1, " +
"tab2.someThing as Field2, " +
"tab4.onePotato as A, " +
"tab4.twoPotato as B, " +
"tab4.threePotato as C, " +
"tab4.four as D " +
"from someTable tab1 " +
"join someTable2 tab2 on tab1.Id = tab2.Id " +
"$$ etc etc for the other joins $$" +
"where tab1.Id = :ID " + ,new {ID = someId});
};
One note is that i've used the bind variable syntax for an Oracle database (:). You'll need to replace this with the equivalent for your DB.
Hope that's useful.
I have one table member_details with field "preferred_location" (varchar) that has comma separated values like "19,20,22" that come from a listbox selection ....
Now I also have another table city_master having field "city_id" (int) and "city_name" (varchar)...
Now I want to separate "preferred_location" (varchar) values and to add them in integer field of temp table so I can make an inner join between city_id(int) of the temp table and city_id(int) of city_master and then can get city name from city_name of city_master...
This is all stuff I need in MySQL - either a stored procedure or a function. I am using it with c#.net.
Frankly, this sounds like a bad design. If you need the integers values separately, then modify your database structure accordingly, and save the values separately to begin with.
I mean, you see where it leads to - because you stored the values as a list in a string, you have maneuvered yourself into a position where you need to unwind the values each time you want to join the tables.
That's like putting the horse behind the wagon.
If these integers are small, like 19,20,22 etc just use smaller 16 or 8 bit integers (as supported by your database) and it should not take much more space than a string (possibly even less).
Made up some mock up example, but this should work with LinqToMySql as well.
class user {
public string name {get;set;}
public int id {get;set;}
}
class member_detail {
public int user_id {get;set;}
public string prefered {get;set;}
}
class city_master{
public int code {get;set;}
public string name {get;set;}
}
void Main()
{
var users = new List<user>();
users.Add(new user(){name = "Mary",id = 1});
users.Add(new user(){name = "John",id=2});
var details = new List<member_detail>() ;
details.Add(new member_detail(){user_id=1,prefered="1,2,3"});
details.Add(new member_detail(){user_id=2,prefered="3,5"});
var cities = new List<city_master>();
cities.Add(new city_master(){code =1,name="Moscow"});
cities.Add(new city_master(){code =2,name="London"});
cities.Add(new city_master(){code =3,name="Paris"});
cities.Add(new city_master(){code =4,name="Rome"});
cities.Add(new city_master(){code =5,name="Madrid"});
users.Select(u=>new {u.name,cities=
details.Where(d=>d.user_id==u.id)
.SelectMany(d=>d.prefered.Split(','))
.Join(cities,c=>c,d=>d.code.ToString(),(a,b)=>new {b.name})}).Dump();
}
thanks for your suggestion but in my case it is better to store ids of preferred location cities as comma separated.
I have a procedure that makes a temporary table and then I can use inner join with city_master table to get city names.
Create Procedure parseAndStoreList(in thingId int, in i_list varchar (128),
out returnCode smallInt)
BEGIN
DECLARE v_loopIndex default 0;
DECLARE Exit Handler for SQLEXCEPTION
BEGIN
call saveAndLog(thingId, 'got exception parsing list');
set returnCode = -1;
END;
call dolog(concat_ws('got list:', i_list));
pase_loop: LOOP set v_loopIndex = v_loopIndex + 1;
call dolog(concat_wc(',', 'at loop iteration ', v_loopIndex);
LOOOP parse_loop;
set returnCode = 0;
END;