package com.alipay.zdal.test.ut.sqlparser.oracle;
import java.util.List;
import org.junit.Test;
import junit.framework.Assert;
import com.alipay.zdal.parser.sql.ast.SQLStatement;
import com.alipay.zdal.parser.sql.dialect.oracle.parser.OracleStatementParser;
import com.alipay.zdal.parser.sql.dialect.oracle.visitor.OracleSchemaStatVisitor;
import com.alipay.zdal.parser.sql.stat.TableStat;
public class OracleSelectTest4 {
@Test
public void test_0() throws Exception {
String sql = "SELECT LPAD(' ',2*(LEVEL-1)) || last_name org_chart, " + //
"employee_id, manager_id, job_id " + //
" FROM employees" + //
" START WITH job_id = 'AD_PRES' " + //
" CONNECT BY PRIOR employee_id = manager_id AND LEVEL <= 2;";
OracleStatementParser parser = new OracleStatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
SQLStatement statemen = statementList.get(0);
Assert.assertEquals(1, statementList.size());
OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
statemen.accept(visitor);
System.out.println("Tables : " + visitor.getTables());
System.out.println("fields : " + visitor.getColumns());
System.out.println("alias : " + visitor.getAliasMap());
System.out.println("conditions : " + visitor.getConditions());
System.out.println("orderBy : " + visitor.getOrderByColumns());
System.out.println("groupBy : " + visitor.getGroupByColumns());
System.out.println("variant : " + visitor.getVariants());
System.out.println("relationShip : " + visitor.getRelationships());
System.out.println("--------------------------------");
Assert.assertEquals(1, visitor.getTables().size());
Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("employees")));
Assert.assertEquals(4, visitor.getColumns().size());
Assert.assertTrue(visitor.getColumns().contains(
new TableStat.Column("employees", "job_id")));
Assert.assertTrue(visitor.getColumns().contains(
new TableStat.Column("employees", "last_name")));
Assert.assertTrue(visitor.getColumns().contains(
new TableStat.Column("employees", "employee_id")));
Assert.assertTrue(visitor.getColumns().contains(
new TableStat.Column("employees", "manager_id")));
}
}