Temel sorguları çalıştırmak için uygulama oluşturma
Makale 12/19/2024
3 katılımcı
Geri Bildirim
Bu makalede
Şunlar için geçerlidir: ✅Microsoft Fabric ✅Azure Veri Gezgini
Bu makalede şunların nasıl yapılacağını öğreneceksiniz:
Önkoşullar
Kusto istemci kitaplığını kullanmak için geliştirme ortamınızı ayarlayın.
Temel bir sorgu çalıştırma ve sonuçları işleme
Tercih ettiğiniz IDE veya metin düzenleyicisinde, tercih ettiğiniz dile uygun kuralı kullanarak temel sorgu adlı bir proje veya dosya oluşturun. Ardından aşağıdaki kodu ekleyin:
yardım kümesine bağlanan bir istemci uygulaması oluşturun.
using Kusto.Data;
using Kusto.Data.Net.Client;
namespace BasicQuery {
class BasicQuery {
static void Main(string[] args) {
var clusterUri = "https://help.kusto.windows.net/";
var kcsb = new KustoConnectionStringBuilder(clusterUri)
.WithAadUserPromptAuthentication();
using (var kustoClient = KustoClientFactory.CreateCslQueryProvider(kcsb)) {
}
}
}
}
from azure.kusto.data import KustoClient, KustoConnectionStringBuilder
def main():
cluster_uri = "https://help.kusto.windows.net"
kcsb = KustoConnectionStringBuilder.with_interactive_login(cluster_uri)
with KustoClient(kcsb) as kusto_client:
if __name__ == "__main__":
main()
import { Client as KustoClient, KustoConnectionStringBuilder } from "azure-kusto-data";
import { InteractiveBrowserCredentialInBrowserOptions } from "@azure/identity";
async function main() {
const clusterUri = "https://help.kusto.windows.net";
const authOptions = {
clientId: "00001111-aaaa-2222-bbbb-3333cccc4444",
redirectUri: "http://localhost:5173",
} as InteractiveBrowserCredentialInBrowserOptions;
const kcsb = KustoConnectionStringBuilder.withUserPrompt(clusterUri, authOptions);
const kustoClient = new KustoClient(kcsb);
}
main();
Not
Node.js uygulamalar için InteractiveBrowserCredentialInBrowserOptions
yerine InteractiveBrowserCredentialNodeOptions
kullanın.
import com.microsoft.azure.kusto.data.Client;
import com.microsoft.azure.kusto.data.ClientFactory;
import com.microsoft.azure.kusto.data.KustoOperationResult;
import com.microsoft.azure.kusto.data.KustoResultSetTable;
import com.microsoft.azure.kusto.data.auth.ConnectionStringBuilder;
public class BasicQuery {
public static void main(String[] args) throws Exception {
try {
String clusterUri = "https://help.kusto.windows.net/";
ConnectionStringBuilder kcsb = ConnectionStringBuilder.createWithUserPrompt(clusterUri);
try (Client kustoClient = ClientFactory.createClient(kcsb)) {
}
}
}
}
Çalıştırılacak veritabanını ve sorguyu tanımlayın. Sorgu, toplam hasarın 100 milyon doları aştığı tarih, durum ve kasırgayla ilgili toplam hasarı döndürür.
var database = "Samples";
var query = @"StormEvents
| where EventType == 'Tornado'
| extend TotalDamage = DamageProperty + DamageCrops
| summarize DailyDamage=sum(TotalDamage) by State, bin(StartTime, 1d)
| where DailyDamage > 100000000
| order by DailyDamage desc";
database = "Samples"
query = "StormEvents" \
"| where EventType == 'Tornado'" \
"| extend TotalDamage = DamageProperty + DamageCrops" \
"| summarize DailyDamage=sum(TotalDamage) by State, bin(StartTime, 1d)" \
"| where DailyDamage > 100000000" \
"| order by DailyDamage desc"
const database = "Samples";
const query = `StormEvents
| where EventType == 'Tornado'
| extend TotalDamage = DamageProperty + DamageCrops
| summarize DailyDamage=sum(TotalDamage) by State, bin(StartTime, 1d)
| where DailyDamage > 100000000
| order by DailyDamage desc`;
String database = "Samples";
String query = "StormEvents\n" +
"| where EventType == 'Tornado'\n" +
"| extend TotalDamage = DamageProperty + DamageCrops\n" +
"| summarize DailyDamage=sum(TotalDamage) by State, bin(StartTime, 1d)\n" +
"| where DailyDamage > 100000000\n" +
"| order by DailyDamage desc";
Sorguyu çalıştırın ve sonucu yazdırın.
using (var response = kustoClient.ExecuteQuery(database, query, null)) {
int columnNoStartTime = response.GetOrdinal("StartTime");
int columnNoState = response.GetOrdinal("State");
int columnNoDailyDamage = response.GetOrdinal("DailyDamage");
Console.WriteLine("Daily tornado damages over 100,000,000$:");
while (response.Read()) {
Console.WriteLine("{0} - {1}, {2}",
response.GetDateTime(columnNoStartTime),
response.GetString(columnNoState),
response.GetInt64(columnNoDailyDamage));
}
}
response = kusto_client.execute(database, query)
print("Daily tornado damages over 100,000,000$:")
for row in response.primary_results[0]:
print(row["StartTime"], "-", row["State"], ",", row["DailyDamage"], "$")
const response = await kustoClient.execute(database, query);
console.log("Daily tornado damages over 100,000,000$:");
for (row of response.primaryResults[0].rows()) {
console.log(row["StartTime"].toString(), "-", row["State"].toString(), ",", row["DailyDamage"].toString(), "$");
}
KustoOperationResult response = kusto_client.execute(database, query);
KustoResultSetTable primaryResults = response.getPrimaryResults();
System.out.println("Daily tornado damages over 100,000,000$:");
while (primaryResults.next()) {
System.out.println(primaryResults.getString("StartTime") + " - " + primaryResults.getString("State") + " , " + primaryResults.getString("DailyDamage"));
}
Kodun tamamı şöyle görünmelidir:
using Kusto.Data;
using Kusto.Data.Net.Client;
namespace BasicQuery {
class BasicQuery {
static void Main(string[] args) {
string clusterUri = "https://help.kusto.windows.net/";
var kcsb = new KustoConnectionStringBuilder(clusterUri)
.WithAadUserPromptAuthentication();
using (var kustoClient = KustoClientFactory.CreateCslQueryProvider(kcsb)) {
string database = "Samples";
string query = @"StormEvents
| where EventType == 'Tornado'
| extend TotalDamage = DamageProperty + DamageCrops
| summarize DailyDamage=sum(TotalDamage) by State, bin(StartTime, 1d)
| where DailyDamage > 100000000
| order by DailyDamage desc";
using (var response = kustoClient.ExecuteQuery(database, query, null)) {
int columnNoStartTime = response.GetOrdinal("StartTime");
int columnNoState = response.GetOrdinal("State");
int columnNoDailyDamage = response.GetOrdinal("DailyDamage");
Console.WriteLine("Daily tornado damages over 100,000,000$:");
while (response.Read()) {
Console.WriteLine("{0} - {1}, {2}",
response.GetDateTime(columnNoStartTime),
response.GetString(columnNoState),
response.GetInt64(columnNoDailyDamage));
}
}
}
}
}
}
from azure.kusto.data import KustoClient, KustoConnectionStringBuilder
def main():
cluster_uri = "https://help.kusto.windows.net"
kcsb = KustoConnectionStringBuilder.with_interactive_login(cluster_uri)
with KustoClient(kcsb) as kusto_client:
database = "Samples"
query = "StormEvents" \
"| where EventType == 'Tornado'" \
"| extend TotalDamage = DamageProperty + DamageCrops" \
"| summarize DailyDamage=sum(TotalDamage) by State, bin(StartTime, 1d)" \
"| where DailyDamage > 100000000" \
"| order by DailyDamage desc"
response = kusto_client.execute(database, query)
print("Daily tornado damages over 100,000,000$:")
for row in response.primary_results[0]:
print(row["StartTime"], "-", row["State"], ",", row["DailyDamage"], "$")
if __name__ == "__main__":
main()
import { Client as KustoClient, KustoConnectionStringBuilder } from "azure-kusto-data";
import { InteractiveBrowserCredentialInBrowserOptions } from "@azure/identity";
async function main() {
const clusterUri = "https://help.kusto.windows.net";
const authOptions = {
clientId: "00001111-aaaa-2222-bbbb-3333cccc4444",
redirectUri: "http://localhost:5173",
} as InteractiveBrowserCredentialInBrowserOptions;
const kcsb = KustoConnectionStringBuilder.withUserPrompt(clusterUri, authOptions);
const kustoClient = new KustoClient(kcsb);
const database = "Samples";
const query = `StormEvents
| where EventType == 'Tornado'
| extend TotalDamage = DamageProperty + DamageCrops
| where DailyDamage > 100000000
| order by DailyDamage desc`;
const response = await kustoClient.execute(database, query);
console.log("Daily tornado damages over 100,000,000$:");
for (row of response.primaryResults[0].rows()) {
console.log(row["StartTime"].toString(), "-", row["State"].toString(), ",", row["DailyDamage"].toString(), "$");
}
}
main();
Not
Node.js uygulamalar için InteractiveBrowserCredentialInBrowserOptions
yerine InteractiveBrowserCredentialNodeOptions
kullanın.
import com.microsoft.azure.kusto.data.Client;
import com.microsoft.azure.kusto.data.ClientFactory;
import com.microsoft.azure.kusto.data.KustoOperationResult;
import com.microsoft.azure.kusto.data.KustoResultSetTable;
import com.microsoft.azure.kusto.data.auth.ConnectionStringBuilder;
public class BasicQuery {
public static void main(String[] args) throws Exception {
try {
String clusterUri = "https://help.kusto.windows.net/";
ConnectionStringBuilder kcsb = ConnectionStringBuilder.createWithUserPrompt(clusterUri);
try (Client kustoClient = ClientFactory.createClient(kcsb)) {
String database = "Samples";
String query = "StormEvents\n" +
"| where EventType == 'Tornado'\n" +
"| extend TotalDamage = DamageProperty + DamageCrops\n" +
"| summarize DailyDamage=sum(TotalDamage) by State, bin(StartTime, 1d)\n" +
"| where DailyDamage > 100000000\n" +
"| order by DailyDamage desc";
KustoOperationResult response = kustoClient.execute(database, query);
KustoResultSetTable primaryResults = response.getPrimaryResults();
System.out.println("Daily tornado damages over 100,000,000$:");
while (primaryResults.next()) {
System.out.println(primaryResults.getString("StartTime") + " - " + primaryResults.getString("State") + " , " + primaryResults.getString("DailyDamage"));
}
}
}
}
}
Uygulamanızı çalıştırma
Bir komut kabuğunda, uygulamanızı çalıştırmak için aşağıdaki komutu kullanın:
# Change directory to the folder that contains the basic queries project
dotnet run .
Node.js ortamında
node basic-query.js
Bir tarayıcı ortamında, uygulamanızı çalıştırmak için uygun komutu kullanın. Örneğin, Vite-React için:
npm run dev
mvn install exec:java -Dexec.mainClass="<groupId>.BasicQuery"
Aşağıdakine benzer bir sonuç görmeniz gerekir:
Daily damages tornado with damages over 100,000,000$:
2007-02-02 00:00:00+00:00 - FLORIDA , 270004000 $
2007-03-01 00:00:00+00:00 - ALABAMA , 266853000 $
2007-05-04 00:00:00+00:00 - KANSAS , 251625000 $
2007-03-01 00:00:00+00:00 - GEORGIA , 143688000 $
Sütun değerlerine erişmek için sıralı konumları kullanma
Sorgu sonucundaki sütunların sırası bilindiğinde, sütunların değerlerine sonuç kümesindeki sıralı konumlarına göre erişmek, sütun adlarına göre daha verimli olur. İsteğe bağlı olarak, çalışma zamanında bir kitaplık yöntemini kullanarak sütun adından bir sütun sırasını belirleyebilirsiniz.
Not
project
veya project-away
işleçlerini kullanarak sorgu sonucundaki sütunların varlığını ve sırasını denetleyebilirsiniz.
Örneğin, önceki kodu, sonuç kümesindeki sıralı konumlarına göre StartTime
, State
ve DailyDamage
sütunlarının değerlerine erişecek şekilde değiştirebilirsiniz:
C# dilinde sütunların değerlerine yalnızca sonuç kümesindeki sıralı konumlarına göre erişebilirsiniz. Sütun adlarını kullanamazsınız; bu nedenle kod aynı kalır.
int columnNoStartTime = response.GetOrdinal("StartTime");
int columnNoState = response.GetOrdinal("State");
int columnNoDailyDamage = response.GetOrdinal("DailyDamage");
Console.WriteLine("Daily tornado damages over 100,000,000$:");
while (response.Read()) {
Console.WriteLine("{0} - {1}, {2}",
response.GetDateTime(columnNoStartTime),
response.GetString(columnNoState),
response.GetInt64(columnNoDailyDamage));
}
state_col = 0
start_time_col = next(col.ordinal for col in response.primary_results[0].columns if col.column_name == "StartTime")
damage_col = 2
print("Daily damages over 100,000,000$:")
for row in response.primary_results[0]:
print(row[start_time_col], "-", row[state_col], ",", row[damage_col], "$")
const columnNoState = 0;
const columnNoStartTime = response.primaryResults[0].columns.find(c => c.name == "StartTime").ordinal;
const columnNoDailyDamage = 2;
console.log("Daily tornado damages over 100,000,000$:");
for (row of response.primaryResults[0].rows()) {
console.log(row.getValueAt(columnNoStartTime).toString(), "-", row.getValueAt(columnNoState).toString(), ",", row.getValueAt(columnNoDailyDamage).toString(), "$");
}
Integer columnNoState = 0;
Integer columnNoStartTime = primaryResults.findColumn("StartTime");
Integer columnNoDailyDamage = 2;
while (primaryResults.next()) {
System.out.println(primaryResults.getString(columnNoStartTime) + " - " + primaryResults.getString(columnNoState) + " , " + primaryResults.getString(columnNoDailyDamage));
}
İstemci isteği özellikleriyle sorgu davranışını özelleştirme
İstemci isteği özelliklerini ayarlayarak sorgunun davranışını özelleştirebilirsiniz. Kullanılabilir seçenekler hakkında daha fazla bilgi için bkz. istemci isteği özelliklerini .
Örneğin, özel bir istek kimliği geçirmek ve sorgu zaman aşımını 1 dakikaya ayarlamak için önceki koddaki kusto_client.execute_query
çağrısını değiştirebilirsiniz. İstemci isteği özelliklerini kullanmak için ClientRequestProperties
sınıfını içeri aktarmanız gerekir.
using Kusto.Data.Common;
var crp = new ClientRequestProperties();
// Set a custom client request identifier
crp.ClientRequestId = "QueryDemo" + Guid.NewGuid().ToString();
// Set the query timeout to 1 minute
crp.SetOption(ClientRequestProperties.OptionServerTimeout, "1m");
using (var response = kustoClient.ExecuteQuery(database, query, crp)) {
}
from azure.kusto.data import ClientRequestProperties
from datetime import datetime
import uuid;
crp = ClientRequestProperties()
# Set a custom client request identifier
crp.client_request_id = "QueryDemo" + str(uuid.uuid4())
# Set the query timeout to 1 minute
crp.set_option(crp.request_timeout_option_name, datetime.timedelta(minutes=1))
response = kusto_client.execute_query(database, query, crp)
import { ClientRequestProperties } from "azure-kusto-data";
import { v4 as uuidv4 } from "uuid";
const crp = new ClientRequestProperties();
// Set a custom client request identifier
crp.clientRequestId = "QueryDemo" + uuidv4();
// Set the query timeout to 1 minute
crp.setServerTimeout(1000 * 60);
const response = await kustoClient.execute(database, query, crp);
import com.microsoft.azure.kusto.data.ClientRequestProperties;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
ClientRequestProperties crp = new ClientRequestProperties();
// Set a custom client request identifier
crp.setClientRequestId("QueryDemo" + UUID.randomUUID());
// Set the query timeout to 1 minute
crp.setTimeoutInMilliSec(TimeUnit.MINUTES.toMillis(60));
KustoOperationResult response = kusto_client.execute(database, query, crp);
Sorgu parametreleri, verilerinizin güvenliğini ve korumasını korumak için önemlidir. Verilerinize yetkisiz erişim elde etmeye veya verileri bozmaya çalışabilecek olası kötü amaçlı aktörlerden korur. Parametreli sorgular hakkında daha fazla bilgi için bkz. Sorgu parametreleri bildirim ifadesi .
Örneğin, önceki kodu değiştirerek EventType değerini ve DailyDamage minimum değerini sorguya parametre olarak geçirebilirsiniz. Parametreleri kullanmak için:
Sorgu metnindeki parametreleri bildirme
Sorgu metnindeki özellik değerlerini parametre adlarıyla değiştirme
yürütme yöntemine geçirilen istemci isteği özelliklerindeki parametre değerlerini ayarlayın
string query = @"declare query_parameters(event_type:string, daily_damage:int);
StormEvents
| where EventType == event_type
| extend TotalDamage = DamageProperty + DamageCrops
| summarize DailyDamage=sum(TotalDamage) by State, bin(StartTime, 1d)
| where DailyDamage > daily_damage
| order by DailyDamage desc";
var crp = new ClientRequestProperties();
crp.SetParameter("event_type", "Flash Flood");
crp.SetParameter("daily_damage", 200000000.ToString());
using (var response = kustoClient.ExecuteQuery(database, query, crp)) {
int columnNoStartTime = response.GetOrdinal("StartTime");
int columnNoState = response.GetOrdinal("State");
int columnNoDailyDamage = response.GetOrdinal("DailyDamage");
Console.WriteLine("Daily flash flood damages over 200,000,000$:");
while (response.Read()) {
Console.WriteLine("{0} - {1}, {2}",
response.GetDateTime(columnNoStartTime),
response.GetString(columnNoState),
response.GetInt64(columnNoDailyDamage));
}
}
query = "declare query_parameters(event_type:string, daily_damage:int);"\
"StormEvents" \
"| where EventType == event_type" \
"| extend TotalDamages = DamageProperty + DamageCrops" \
"| summarize DailyDamage=sum(TotalDamages) by State, bin(StartTime, 1d)" \
"| where DailyDamage > daily_damage" \
"| order by DailyDamage desc"
crp = ClientRequestProperties()
crp.set_parameter("event_type", "Flash Flood")
crp.set_parameter("daily_damage", str(200000000))
response = kusto_client.execute_query(=database, query, crp)
print("Daily flash flood damages over 200,000,000$:")
for row in response.primary_results[0]:
print(row["StartTime"], "-", row["State"], ",", row["DailyDamage"], "$")
const query = `declare query_parameters(event_type:string, daily_damage:int);
StormEvents
| where EventType == event_type
| extend TotalDamage = DamageProperty + DamageCrops
| summarize DailyDamage=sum(TotalDamage) by State, bin(StartTime, 1d)
| where DailyDamage > daily_damage
| order by DailyDamage desc`;
const crp = new ClientRequestProperties();
crp.setParameter("event_type", "Flash Flood");
crp.setParameter("daily_damage", 200000000);
const response = await kustoClient.execute(database, query, crp);
console.log("Daily flash flood damages over 200,000,000$:");
for (row of response.primaryResults[0].rows()) {
console.log(row.getValueAt(columnNoStartTime).toString(), "-", row.getValueAt(columnNoState).toString(), ",", row.getValueAt(columnNoDailyDamage).toString(), "$");
}
String query = "declare query_parameters(event_type:string, daily_damage:int);\n" +
"StormEvents\n" +
"| where EventType == event_type\n" +
"| extend TotalDamage = DamageProperty + DamageCrops\n" +
"| summarize DailyDamage=sum(TotalDamage) by State, bin(StartTime, 1d)\n" +
"| where DailyDamage > daily_damage\n" +
"| order by DailyDamage desc";
ClientRequestProperties crp = new ClientRequestProperties();
crp.setParameter("event_type", "Flash Flood");
crp.setParameter("daily_damage", 200000000);
KustoOperationResult response = kusto_client.execute(database, query, crp);
KustoResultSetTable primary_results = response.getPrimaryResults();
System.out.println("Daily flash flood damages over 200,000,000$:");
while (primary_results.next()) {
System.out.println("DEBUG: " + primary_results.getString(columnNoStartTime) + " - " + primary_results.getString(columnNoState) + " , " + primary_results.getString(columnNoDailyDamage));
}
Sütun değerlerine ve parametrelerine erişmek için sıralı konumları kullanan kodun tamamı şu şekilde görünmelidir:
using Kusto.Data;
using Kusto.Data.Common;
using Kusto.Data.Net.Client;
namespace BasicQuery {
class BasicQuery {
static void Main(string[] args) {
string clusterUri = "https://help.kusto.windows.net/";
var kcsb = new KustoConnectionStringBuilder(clusterUri)
.WithAadUserPromptAuthentication();
using (var kustoClient = KustoClientFactory.CreateCslQueryProvider(kcsb)) {
string database = "Samples";
string query = @"declare query_parameters(event_type:string, daily_damage:int);
StormEvents
| where EventType == event_type
| extend TotalDamage = DamageProperty + DamageCrops
| summarize DailyDamage=sum(TotalDamage) by State, bin(StartTime, 1d)
| where DailyDamage > daily_damage
| order by DailyDamage desc";
var crp = new ClientRequestProperties();
crp.ClientRequestId = "QueryDemo" + Guid.NewGuid().ToString();
crp.SetOption(ClientRequestProperties.OptionServerTimeout, "1m");
crp.SetParameter("event_type", "Flash Flood");
crp.SetParameter("daily_damage", 200000000.ToString());
using (var response = kustoClient.ExecuteQuery(database, query, crp)) {
int columnNoStartTime = response.GetOrdinal("StartTime");
int columnNoState = response.GetOrdinal("State");
int columnNoDailyDamage = response.GetOrdinal("DailyDamage");
Console.WriteLine("Daily flash flood damages over 200,000,000$:");
while (response.Read()) {
Console.WriteLine("{0} - {1}, {2}",
response.GetDateTime(columnNoStartTime),
response.GetString(columnNoState),
response.GetInt64(columnNoDailyDamage));
}
}
}
}
}
}
from azure.kusto.data import KustoClient, KustoConnectionStringBuilder, ClientRequestProperties
from datetime import timedelta
import uuid;
def main():
cluster_uri = "https://help.kusto.windows.net"
kcsb = KustoConnectionStringBuilder.with_interactive_login(cluster_uri)
crp = ClientRequestProperties()
crp.client_request_id = "QueryDemo" + str(uuid.uuid4())
crp.set_option(crp.request_timeout_option_name, timedelta(minutes=1))
crp.set_parameter("event_type", "Flash Flood")
crp.set_parameter("daily_damage", str(200000000))
with KustoClient(kcsb) as kusto_client:
database = "Samples"
query = "declare query_parameters(event_type:string, daily_damage:int);"\
"StormEvents" \
"| where EventType == event_type" \
"| extend TotalDamages = DamageProperty + DamageCrops" \
"| summarize DailyDamage=sum(TotalDamages) by State, bin(StartTime, 1d)" \
"| where DailyDamage > daily_damage" \
"| order by DailyDamage desc"
response = kusto_client.execute_query(database, query, crp)
state_col = 0
start_time_col = next(col.ordinal for col in response.primary_results[0].columns if col.column_name == "StartTime")
damage_col = 2
print("Daily flash flood damages over 200,000,000$:")
for row in response.primary_results[0]:
print(row[start_time_col], "-", row[state_col], ",", row[damage_col], "$")
if __name__ == "__main__":
main()
import {
Client as KustoClient,
KustoConnectionStringBuilder,
ClientRequestProperties
} from "azure-kusto-data";
import { v4 as uuidv4 } from "uuid";
async function main() {
const clusterUri = "https://help.kusto.windows.net";
const kcsb = KustoConnectionStringBuilder.withUserPrompt(clusterUri);
const kustoClient = new KustoClient(kcsb);
const database = "Samples";
const query = `declare query_parameters(event_type:string, daily_damage:int);
StormEvents
| where EventType == event_type
| extend TotalDamage = DamageProperty + DamageCrops
| summarize DailyDamage=sum(TotalDamage) by State, bin(StartTime, 1d)
| where DailyDamage > daily_damage
| order by DailyDamage desc`;
const crp = new ClientRequestProperties();
// Set a custom client request identifier
crp.clientRequestId = "QueryDemo" + uuidv4();
// Set the query timeout to 1 minute
crp.setTimeout(1000 * 60);
crp.setParameter("event_type", "Flash Flood");
crp.setParameter("daily_damage", 200000000);
const response = await kustoClient.execute(database, query, crp);
const columnNoState = 0;
const columnNoStartTime = response.primaryResults[0].columns.find(c => c.name == "StartTime").ordinal;
const columnNoDailyDamage = 2;
console.log("Daily flash flood damages over 200,000,000$:");
for (row of response.primaryResults[0].rows()) {
console.log(row.getValueAt(columnNoStartTime).toString(), "-", row.getValueAt(columnNoState).toString(), ",", row.getValueAt(columnNoDailyDamage).toString(), "$");
}
}
main();
import com.microsoft.azure.kusto.data.Client;
import com.microsoft.azure.kusto.data.ClientFactory;
import com.microsoft.azure.kusto.data.KustoOperationResult;
import com.microsoft.azure.kusto.data.KustoResultSetTable;
import com.microsoft.azure.kusto.data.auth.ConnectionStringBuilder;
import com.microsoft.azure.kusto.data.ClientRequestProperties;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
public class BasicQuery {
public static void main(String[] args) throws Exception {
try {
String clusterUri = "https://help.kusto.windows.net/";
ConnectionStringBuilder kcsb = ConnectionStringBuilder.createWithUserPrompt(clusterUri);
try (Client kustoClient = ClientFactory.createClient(kcsb)) {
String database = "Samples";
String query = "declare query_parameters(event_type:string, daily_damage:int);\n" +
"StormEvents\n" +
"| where EventType == event_type\n" +
"| extend TotalDamage = DamageProperty + DamageCrops\n" +
"| summarize DailyDamage=sum(TotalDamage) by State, bin(StartTime, 1d)\n" +
"| where DailyDamage > daily_damage\n" +
"| order by DailyDamage desc";
ClientRequestProperties crp = new ClientRequestProperties();
// Set a custom client request identifier
crp.setClientRequestId("QueryDemo" + UUID.randomUUID());
// Set the query timeout to 1 minute
crp.setTimeoutInMilliSec(TimeUnit.MINUTES.toMillis(60));
crp.setParameter("event_type", "Flash Flood");
crp.setParameter("daily_damage", 200000000);
KustoOperationResult response = kustoClient.execute(database, query, crp);
KustoResultSetTable primaryResults = response.getPrimaryResults();
Integer columnNoState = 0;
Integer columnNoStartTime = primaryResults.findColumn("StartTime");
Integer columnNoDailyDamage = 2;
System.out.println("Daily flash flood damages over 200,000,000$:");
while (primaryResults.next()) {
System.out.println("DEBUG: " + primaryResults.getString(columnNoStartTime) + " - " + primaryResults.getString(columnNoState) + " , " + primaryResults.getString(columnNoDailyDamage));
}
}
}
}
}
Aşağıdakine benzer bir sonuç görmeniz gerekir:
Daily flash flood damages over 200,000,000$:
2007-08-21 00:00:00+00:00 - OHIO , 253320000 $
Sonraki adım