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package test;
/*
* Date: 11-9-26
*/
import gudusoft.gsqlparser.EDbVendor;
import gudusoft.gsqlparser.ETableSource;
import gudusoft.gsqlparser.TGSqlParser;
import gudusoft.gsqlparser.nodes.TAliasClause;
import gudusoft.gsqlparser.nodes.TResultColumn;
import gudusoft.gsqlparser.nodes.TTable;
import gudusoft.gsqlparser.stmt.TCreateMaterializedSqlStatement;
import gudusoft.gsqlparser.stmt.TSelectSqlStatement;
import junit.framework.TestCase;
public class testAlias extends TestCase {
public void test0(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvoracle);
sqlparser.sqltext = "select * from ( select distinct class, company, riskstate, subcoy, version from policy.class ) as b";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement selectSqlStatement = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TTable table = selectSqlStatement.tables.getTable(0);
int asClauseNo = 1;
table.setString (table.toString () + " AS T" + asClauseNo);
asClauseNo++;
// System.out.println("sql:"+selectSqlStatement.toString());
assertTrue(selectSqlStatement.toString().equalsIgnoreCase("select * from ( select distinct class, company, riskstate, subcoy, version from policy.class ) AS T1"));
}
public void test1(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvoracle);
sqlparser.sqltext = "select * from ( select distinct class, company, riskstate, subcoy, version from policy.class ) ";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement selectSqlStatement = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TTable table = selectSqlStatement.tables.getTable(0);
int asClauseNo = 1;
if (table.getTableType ().equals (ETableSource.subquery))
{
if (table.getAliasClause () == null)
{
table.setString (table.toString () + " AS T" + asClauseNo);
}
else
{
TAliasClause tac = table.getAliasClause ();
tac.setString(tac.toString() +asClauseNo);
}
asClauseNo++;
}
//System.out.println("sql:"+selectSqlStatement.toString());
assertTrue(selectSqlStatement.toString().trim().equalsIgnoreCase("select * from ( select distinct class, company, riskstate, subcoy, version from policy.class ) AS T1"));
}
public void test2(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvoracle);
sqlparser.sqltext = "select * from ( select distinct class, company, riskstate, subcoy, version from policy.class ) as b";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement selectSqlStatement = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TTable table = selectSqlStatement.tables.getTable(0);
int asClauseNo = 1;
if (table.getTableType ().equals (ETableSource.subquery))
{
if (table.getAliasClause () == null)
{
table.setString (table.toString () + " AS T" + asClauseNo);
}
else
{
TAliasClause tac = table.getAliasClause ();
tac.setString(tac.toString() +asClauseNo);
}
asClauseNo++;
}
// System.out.println("sql:"+selectSqlStatement.toString());
assertTrue(selectSqlStatement.toString().trim().equalsIgnoreCase("select * from ( select distinct class, company, riskstate, subcoy, version from policy.class ) as b1"));
}
// public void testTeradataColumnAlias(){
// TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvteradata);
// sqlparser.sqltext = "SELECT \n" +
// "t1.work_ord_group_id\n" +
// "FROM vt_fixed_detail_build_6";
// assertTrue(sqlparser.parse() == 0);
// TSelectSqlStatement selectSqlStatement = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
// TResultColumn resultColumn = selectSqlStatement.getResultColumnList().getResultColumn(0);
// System.out.println(resultColumn.getColumnAlias());
// }
public void testAlias(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvoracle);
sqlparser.sqltext = "CREATE MATERIALIZED VIEW SYS_TEST.TEST\n" +
" AS SELECT\n" +
" (tableAlias1.column1) columnAlias1,\n" +
" (tableAlias2.column2) columnAlias2\n" +
" FROM\n" +
" SYS_TEST_A.TABLE1@Database1 tableAlias1,\n" +
" SYS_TEST_A.TABLE2@Database3 tableAlias2";
assertTrue(sqlparser.parse() == 0);
TCreateMaterializedSqlStatement createMaterializedViewStmt = (TCreateMaterializedSqlStatement)sqlparser.sqlstatements.get(0);
TSelectSqlStatement subquery = createMaterializedViewStmt.getSubquery();
assertTrue(subquery.getResultColumnList().size() == 2);
TResultColumn resultColumn = subquery.getResultColumnList().getResultColumn(0);
assertTrue(resultColumn.getAliasClause().toString().equalsIgnoreCase("columnAlias1"));
TTable table = subquery.getTables().getTable(0);
assertTrue(table.getAliasClause().toString().equalsIgnoreCase("tableAlias1"));
}
}