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@lischenko
Last active December 11, 2015 17:08
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driverclassname=oracle.jdbc.OracleDriver
url=jdbc:oracle:thin:@localhost:1521:XE
username=me
password=me
import java.util.Collections;
import java.util.Map;
import java.util.Properties;
import javax.sql.DataSource;
import org.apache.commons.dbcp.BasicDataSourceFactory;
import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
public class Main {
private static String SQL_CONSTANT_INTERVAL = "select current_timestamp - interval '1' hour from dual";
private static String SQL_PARAMETERIZED_INTERVAL_QUOTED = "select current_timestamp - interval ':hours' hour from dual";
private static String SQL_PARAMETERIZED_INTERVAL_UNQUOTED = "select current_timestamp - interval :hours hour from dual";
private static String SQL_PARAMETERIZED_INTERVAL_NUMTODSINTERVAL =
"select current_timestamp - NUMTODSINTERVAL(:hours, 'HOUR' ) from dual";
public static void main(String[] args) throws Exception {
Properties properties = new Properties();
properties.load(Main.class.getClassLoader().getSystemResourceAsStream("db.properties"));
DataSource dataSource = BasicDataSourceFactory.createDataSource(properties);
NamedParameterJdbcTemplate npTemplate = new NamedParameterJdbcTemplate(dataSource);
Map<String, String> params = Collections.singletonMap("hours", "1");
String[] queries =
new String[] {
SQL_CONSTANT_INTERVAL,
SQL_PARAMETERIZED_INTERVAL_QUOTED,
SQL_PARAMETERIZED_INTERVAL_UNQUOTED,
SQL_PARAMETERIZED_INTERVAL_NUMTODSINTERVAL };
for (String q : queries) {
System.out.println("Executing " + q);
try {
System.out.println("Result = " + npTemplate.queryForObject(q, params, String.class));
} catch (RuntimeException e) {
System.out.println("Error: " + e);
}
System.out.println();
}
}
}
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>examples</groupId>
<artifactId>oracle-interval</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>oracle-interval</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<scope>runtime</scope>
<version>11.2.0.1.0</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>3.1.2.RELEASE</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
</dependencies>
</project>
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