in
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("'李四'");
CustomSql equal1 = CustomSql.getCustomSql("'王五'");
//where
Conditions where = Conditions.getInstance(Cp.NONE, InCondition.in(name, equal, equal1));
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" IN ('李四','王五')
MYSQL
SELECT t.`name` AS `name`,t.`age` AS `age` FROM `test` t WHERE t.`name` IN ('李四','王五')
POSTGRESQL
SELECT t.name AS name,t.age AS age FROM test t WHERE t.name IN ('李四','王五')
CLICKHOUSE
SELECT t.name AS name,t.age AS age FROM test t WHERE t.name IN ('李四','王五')
KDW
SELECT t.name AS name,t.age AS age FROM test t WHERE t.name IN ('李四','王五')
SQLSERVER
SELECT t.name AS name,t.age AS age FROM test t WHERE t.name IN ('李四','王五')