Example_1_5_ColumnExpressions.java

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package org.jooq.academy.section1;

import static org.jooq.academy.tools.Tools.connection;
import static org.jooq.example.db.h2.Tables.AUTHOR;
import static org.jooq.impl.DSL.concat;
import static org.jooq.impl.DSL.val;

import org.jooq.DSLContext;
import org.jooq.academy.tools.Tools;
import org.jooq.impl.DSL;

import org.junit.Test;

public class Example_1_5_ColumnExpressions {

    @Test
    public void run() {
        DSLContext dsl = DSL.using(connection());

        Tools.title("CONCAT() function with prefix notation");
        Tools.print(
            dsl.select(concat(AUTHOR.FIRST_NAME, val(" "), AUTHOR.LAST_NAME))
               .from(AUTHOR)
               .orderBy(AUTHOR.ID)
               .fetch()
        );

        Tools.title("CONCAT() function with infix notation");
        Tools.print(
            dsl.select(AUTHOR.FIRST_NAME.concat(" ").concat(AUTHOR.LAST_NAME))
               .from(AUTHOR)
               .orderBy(AUTHOR.ID)
               .fetch()
        );

    }
}