like

使用示例

import com.youngdatafan.sqlbuilder.enums.Cp;
import com.youngdatafan.sqlbuilder.enums.DatabaseType;
import com.youngdatafan.sqlbuilder.model.BinaryCondition;
import com.youngdatafan.sqlbuilder.model.Conditions;
import com.youngdatafan.sqlbuilder.model.CustomSql;
import com.youngdatafan.sqlbuilder.model.Model;
import com.youngdatafan.sqlbuilder.model.Query;
import com.youngdatafan.sqlbuilder.model.Schema;
import com.youngdatafan.sqlbuilder.model.Table;

public class Test {

    @org.junit.Test
    public void getFunction() {
         Schema schema = Schema.getSchema("");
         Table test = Table.getOriginalTable(schema, "test", "t");
         Query query = new Query();
         Model name = test.addField("name");
         Model age = test.addField("age");
         query.addColumn("name", name);
         query.addColumn("age", age);
         query.addFrom(test);
         CustomSql equal = CustomSql.getCustomSql("'%李%'");
         //where
         Conditions where = Conditions.getInstance(Cp.NONE, BinaryCondition.like(name, equal));
         query.setWHere(where);
         System.out.println("oracle：");
         System.out.println(query.getDatabaseSql(DatabaseType.ORACLE));
         System.out.println();
 
         System.out.println("pg：");
         System.out.println(query.getDatabaseSql(DatabaseType.POSTGRESQL));
         System.out.println();
 
         System.out.println("clickhouse：");
         System.out.println(query.getDatabaseSql(DatabaseType.CLICKHOUSE));
         System.out.println();
 
         System.out.println("mysql：");
         System.out.println(query.getDatabaseSql(DatabaseType.MYSQL));
         System.out.println();
 
         System.out.println("sqlserver：");
         System.out.println(query.getDatabaseSql(DatabaseType.MSSQL));
         System.out.println();
 
         System.out.println("kdw：");
         System.out.println(query.getDatabaseSql(DatabaseType.KDW));
         System.out.println();
    }
}

根据数据源获取对于数据库的sql。

ORACLE

SELECT t."name" AS "name",t."age" AS "age" FROM "test" t WHERE t."name" LIKE '%李%'       

MYSQL

SELECT t.`name` AS `name`,t.`age` AS `age` FROM `test` t WHERE t.`name` LIKE '%李%'  

POSTGRESQL

SELECT t.name AS name,t.age AS age FROM test t WHERE t.name LIKE '%李%'    

CLICKHOUSE

SELECT t.name AS name,t.age AS age FROM test t WHERE t.name LIKE '%李%' 

KDW

SELECT t.name AS name,t.age AS age FROM test t WHERE t.name LIKE '%李%' 

SQLSERVER

SELECT t.name AS name,t.age AS age FROM test t WHERE t.name LIKE '%李%'