I am trying pass in an array of strings (internal_id) to a query. The portion below counts how many elements are in the internal_id array and parameterizes them into a string so it can be compatible with SQL(Ex. if there are two IDs in internal_id, then paramString would be "$1,$2")
const { internal_id } = args; // This is an array of strings
let paramString: Array<string> = [];
for (let count = 1; count <= internal_id!.length; count++) {
paramString.push(`$${count}`)
}
let queryString = `
SELECT *
FROM customer
WHERE internal_id IN (${paramString.join(',')})`
Then I tried to pass the internal_id array as a parameter below:
const res = await db.get(queryString, [internal_id]);
But I get this error
error: bind message supplies 1 parameters, but prepared statement "" requires 2
I am not sure how to correctly pass internal_id array through db.get().
You provide and array containing another array internal_id instead of just internal_id itself.
Related
Is there an easier approach to convert an Intellij IDEA environment variable into a list of Tuples?
My environment variable for Intellij is
GROCERY_LIST=[("egg", "dairy"),("chicken", "meat"),("apple", "fruit")]
The environment variable gets accessed into Kotlin file as String.
val g_list = System.getenv("GROCERY_LIST")
Ideally I'd like to iterate over g_list, first element being ("egg", "dairy") and so on.
And then ("egg", "dairy") is a tuple/pair
I have tried to split g_list by comma that's NOT inside quotes i.e
val splitted_list = g_list.split(",(?=(?:[^\\\"]*\\\"[^\\\"]*\\\")*[^\\\"]*\$)".toRegex()).toTypedArray()
this gives me first element as [("egg", second element as "dairy")] and so on.
Also created a data class and tried to map the string into data class using jacksonObjectMapper following this link:
val mapper = jacksonObjectMapper()
val g_list = System.getenv("GROCERY_LIST")
val myList: List<Shopping> = mapper.readValue(g_list)
data class Shopping(val a: String, val b: String)
You can create a regular expression to match all strings in your environmental variable.
Regex::findAll()
Then loop through the strings while creating a list of Shopping objects.
// Raw data set.
val groceryList: String = "[(\"egg\", \"dairy\"),(\"chicken\", \"meat\"),(\"apple\", \"fruit\")]"
// Build regular expression.
val regex = Regex("\"([\\s\\S]+?)\"")
val matchResult = regex.findAll(groceryList)
val iterator = matchResult.iterator()
// Create a List of `Shopping` objects.
var first: String = "";
var second: String = "";
val shoppingList = mutableListOf<Shopping>()
var i = 0;
while (iterator.hasNext()) {
val value = iterator.next().value;
if (i % 2 == 0) {
first = value;
} else {
second = value;
shoppingList.add(Shopping(first, second))
first = ""
second = ""
}
i++
}
// Print Shopping List.
for (s in shoppingList) {
println(s)
}
// Output.
/*
Shopping(a="egg", b="dairy")
Shopping(a="chicken", b="meat")
Shopping(a="apple", b="fruit")
*/
data class Shopping(val a: String, val b: String)
Never a good idea to use regex to match parenthesis.
I would suggest a step-by-step approach:
You could first match the name and the value by
(\w+)=(.*)
There you get the name in group 1 and the value in group 2 without caring about any subsequent = characters that might appear in the value.
If you then want to split the value, I would get rid of start and end parenthesis first by matching by
(?<=\[\().*(?=\)\])
(or simply cut off the first and last two characters of the string, if it is always given it starts with [( and ends in )])
Then get the single list entries from splitting by
\),\(
(take care that the split operation also takes a regex, so you have to escape it)
And for each list entry you could split that simply by
,\s*
or, if you want the quote character to be removed, use a match with
\"(.*)\",\s*\"(.*)\"
where group 1 contains the key (left of equals sign) and group 2 the value (right of equals sign)
What I need is to sort data I get from an API into different arrays but add '0' value where there is no value at 1 type but is at the other type/s. Now is this possible with array.filter since its faster then a bunch of for and if loops ?
So let's say I get following data from SQL to the API:
Day Type Amount
-----------------------
12.1.2022 1 11
12.1.2022 2 4
13.1.2022 1 5
14.1.2022 2 9
16.1.2022 2 30
If I run this code :
this.data = result.Data;
let date = [];
const data = { 'dataType1': [], 'dataType2': [], 'dataType3': [], 'dataType4': [] }
/*only writing example for 2 types since for 4 it would be too long but i desire
answer that works for any amount of types or for 4 types */
this.data.forEach(x => {
var lastAddress = date[date.length - 1]
if (x.type == 1) {dataType1.push(x.Amount) }
if (x.type == 2) {dataType2.push(x.Amount) }}
lastAddress != x.Day ? date.push(x.Day) : '';
The array I get for type1 is [11,5]
and for type2 I get [4,9,30].
And for dates i get all the unique dates.
But the data I would like is: [11,5,0,0] and [4,0,9,30]
The size of array also has to match the size of Day array at the end.
which would be unique dates.. in this case:
[12.1.2022, 13.1.2022, 14.1.2022, 16.1.2022]
I have already tried to solve this with some for, if and while loops but it gets way too messy, so I'm looking for an alternative.
Also i have 4 types but for reference i only wrote sample for 2.
you can
first get the uniq values
loop over the data to create an array of object with
{date:string,values:number[]}
//create a function:
matrix(data:any[])
{
const uniqTypes=data.reduce((a,b)=>a.indexOf(b.type)>=0?a:
[...a,b.type],[])
const result=[]
this.data.forEach((x:any)=>{
let index=result.findIndex(r=>r.date==x.date)
if (index<0)
{
result.push({date:x.date,values:[...uniqTypes].fill(0)})
index=result.length-1;
}
result[index].values[uniqTypes.indexOf(x.type)]=x.amount
})
return result
}
//and use like
result=this.matrix(this.data);
NOTE: You can create the uniqType outside the function as variable and pass as argument to the function
stackblitz
const type1 = [];
const type2 = [];
data.forEach(item=>{
if(item.type==1){
type1.push(item.amount)
type2.push(0)
}else{
type1.push(0)
type2.push(item.amount)
}
})
console.log(type1)
console.log(type2)
I have a code block below for parsing query params using udf. It works fine when the value passed to function is hardcoded as in the example. Thought when I try to parse the same value fetched from a table I get a
An internal error occurred and the request could not be completed. (error code: internalError)
CREATE TEMPORARY FUNCTION parse(queryString STRING) RETURNS ARRAY<STRUCT<key STRING, value STRING>> LANGUAGE js AS
"""
var params = {}
var array = []
// split into key/value pairs
var queries = queryString.split('&');
var ind = 0
// convert the array of strings into an object
for (var i = 0; i < queries.length; i++ ) {
var temp = queries[i].split('=');
if(temp.length < 2) continue;
array[ind++] = { key: temp[0], value: decodeURI(temp[1]) }
}
return array;
""";
select parse('ca_chid=2002810&ca_source=gaw&ca_ace=&ca_nw=g&ca_dev=c&ca_pl=&ca_pos=1t3&ca_agid=32438864366&ca_caid=260997846&ca_adid=151983037851&ca_kwt=florists%20in%20walsall&ca_mt=e&ca_fid=&ca_tid=aud-117534990726:kwd-420175760&ca_lp=9045676&ca_li=&ca_devm=&ca_plt=&ca_sadt=&ca_smid=&ca_spc=&ca_spid=&ca_sco=&ca_sla=&ca_sptid=&ca_ssc=&gclid=CLaDoa6ZrdACFcyRGwodG8IFvQ') as params
--not working
--select parse(page_urlquery) from (
--SELECT page_urlquery FROM `query_param_snapshot` where page_urlquery != '' LIMIT 1
Also reported on the issue tracker (we are working on a fix). One workaround is to use a SQL function rather than a JavaScript function, e.g.:
CREATE TEMPORARY FUNCTION parse(queryString STRING)
RETURNS ARRAY<STRUCT<key STRING, value STRING>> AS (
(SELECT
ARRAY_AGG(STRUCT(
entry[OFFSET(0)] AS key,
entry[OFFSET(1)] AS value))
FROM (
SELECT SPLIT(pairString, '=') AS entry
FROM UNNEST(SPLIT(queryString, '&')) AS pairString)
)
);
SELECT parse('ca_chid=2002810&ca_source=gaw&ca_ace=&ca_nw=g&ca_dev=c&ca_pl=&ca_pos=1t3&ca_agid=32438864366&ca_caid=260997846&ca_adid=151983037851&ca_kwt=florists%20in%20walsall&ca_mt=e&ca_fid=&ca_tid=aud-117534990726:kwd-420175760&ca_lp=9045676&ca_li=&ca_devm=&ca_plt=&ca_sadt=&ca_smid=&ca_spc=&ca_spid=&ca_sco=&ca_sla=&ca_sptid=&ca_ssc=&gclid=CLaDoa6ZrdACFcyRGwodG8IFvQ') AS params;
Im trying to get all the data rows that contain a certain set of data.
In my database i have some values, including start and length.
I have an array that contains integers called startTimes and another called endTimes.
I need a where clause that would return the records that have a start value contained in startTimes, OR start+length contained in endTimes.
Is there any way to do this?
Thanks
IQueryable<request> proposedRequest = db.requests.Include(r => r.rooms);
proposedRequest = proposedRequest.Where(r=>r.booked.Equals(1));
proposedRequest = proposedRequest.Where(r=>r.roundID.Equals(roundID))8;
proposedRequest = proposedRequest.Where(r=>r.day.Equals(day));
int[] startTimes;
int[] endTimes;
for(var q=0;q<time;q++){
startTimes[startTimes.Length] = time + q;
endTimes[endTimes.Length] = time + q + 1;
}
proposedRequest = proposedRequest.Where(//what goes in here);
i have an array startTime=[1,3,4] and an array endTime=[2,4,5] lets
say. I need to see if any of those values match my records? I dont
think the above would do the job
To check if you have value in Array of int, Use the Contains Method:
proposedRequest = proposedRequest.Where(s => startTimes.Contains(s.INT_ID)
|| endTimes.Contains(s.INT_ID));
Syntax: ARRAY.Contains(ID_TO_SEARCH)
it returns a boolean:
var list = new List<int> {1,2,3,4,5};
var intVar = 4;
var exists = list.Contains(intVar);
will something like this suffice?
var data = collection.Where(
t => startTimes.Contains(t.theTime) ||
endTimes.Contains(t.theTime + theLength));
proposedRequest.Where(pr => startTimesArray.Contains(pr.start) || endTimesArray.Contains(pr.start + pr.length));
I need to use the IN clause in the SQL sentence.
I have data in one table with the type on Int(11).
And Y have a String from another table that is the criteria.
For example, in table A i have the value 3 of type Int.
In table/process B i have the String "0123".
I need to query table A to meet this criteria:
Select * from Table A where attrib_1 IN (0,1,2,3)
Because record n have value 3, it should be returned.
So i'm trying to use .setParameterList, like this:
List<BloqueCruzamiento> bloques = session.createQuery("FROM BloqueCruzamiento AS b WHERE b.anio=:anio AND b.activo=true AND b.grupo=:categoria AND b.pr IN(:pr_set)ORDER BY b.nroParcela, b.cruza, b.pedigree")
.setParameter("anio", grupo.getAnio())
.setParameter("categoria", grupo.getCategoria())
.setParameterList("pr_set", pr_parm)
.list();
the quid is on "pr_set" parameter.
I want to know how to convert a String , "0123", to a Collection of Integers (0,1,2,3).
So I can pass this parameter to setParameterList() method.
Anapproach that I'm right now is to convert the String to a Char Array, then loop, and convert each element into an Integer Array.
Can somebody give anothe solution ?
Regards
you can use code below to get list from String
String s = "0123";
List<Integer> pr_parm = new ArrayList<Integer>();
for(int i=0;i<s.length();i++) {
if (Character.isDigit(s.charAt(i))) {
pr_parm.add(Integer.parseInt(String.valueOf(s.charAt(i))));
}
}
System.out.println(pr_parm);
Then you can use the list in your setParameterList("pr_set", pr_parm)
this was the solution.
String[] sele = grupo.getPr_sel().split(",");
Integer[] pr_parm_int = new Integer[sele.length];
for (int x=0; x<sele.length;x++){
pr_parm_int[x] = Integer.valueOf(sele[x]);
}
the first line is to parse the string and strip comas.