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package test;
import gudusoft.gsqlparser.*;
import gudusoft.gsqlparser.nodes.*;
import gudusoft.gsqlparser.stmt.TAlterTableStatement;
import gudusoft.gsqlparser.stmt.TUpdateSqlStatement;
import junit.framework.TestCase;
import gudusoft.gsqlparser.stmt.TSelectSqlStatement;
public class testModifySql extends TestCase {
private TGSqlParser parser = null;
protected void setUp() throws Exception {
super.setUp();
parser = new TGSqlParser(EDbVendor.dbvoracle);
}
protected void tearDown() throws Exception {
parser = null;
super.tearDown();
}
/**
* <p> column: t1.f1 -> t1.f3 as f1,
* <p> column: t2.f2 as f2 -> t2.f3
*/
public void test2(){
parser.sqltext = "select t1.f1, t2.f2 as f2 from table1 t1 left join table2 t2 on t1.f1 = t2.f2 ";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.getResultColumnList().getResultColumn(0).setString("t1.f3 as f1");
select.getResultColumnList().getResultColumn(1).setString("t2.f3");
assertTrue(select.toString().equalsIgnoreCase("select t1.f3 as f1, t2.f3 from table1 t1 left join table2 t2 on t1.f1 = t2.f2 "));
//System.out.println(select.joins.getJoin(0).toString());
}
/**
* change expression in where condition:
* t1.f2 = 2 -> t1.f2 > 2
*/
public void test3(){
parser.sqltext = "select t1.f1 from table1 t1 where t1.f2 = 2 ";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.getWhereClause().getCondition().setString("t1.f2 > 2");
assertTrue(select.toString().equalsIgnoreCase("select t1.f1 from table1 t1 where t1.f2 > 2 "));
// System.out.println(select.toString());
}
/**
* table2 -> "(tableX join tableY using (id)) as table2"
*/
public void test5(){
parser.sqltext = "select table1.col1, table2.col2\n" +
"from table1, table2\n" +
"where table1.foo > table2.foo";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
TTable t ;
for(int i=0;i<select.tables.size();i++){
t = select.tables.getTable(i);
if (t.toString().compareToIgnoreCase("table2") == 0){
t.setString("(tableX join tableY using (id)) as table2");
}
}
// System.out.println(select.toString());
assertTrue(select.toString().equalsIgnoreCase("select table1.col1, table2.col2\n" +
"from table1, (tableX join tableY using (id)) as table2\n" +
"where table1.foo > table2.foo"));
}
/**
* <p> table2 -> "(tableX join tableY using (id)) as table3"
* <p> table2.col2 -> table3.col2
* <p> table2.foo -> table3.foo
*/
public void test6(){
parser.sqltext = "select table1.col1, table2.col2\n" +
"from table1, table2\n" +
"where table1.foo > table2.foo";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
TTable t ;
for(int i=0;i<select.tables.size();i++){
t = select.tables.getTable(i);
if (t.toString().compareToIgnoreCase("table2") == 0){
for(int j=0;j<t.getObjectNameReferences().size();j++){
if(t.getObjectNameReferences().getObjectName(j).getObjectToken().toString().equalsIgnoreCase("table2")){
t.getObjectNameReferences().getObjectName(j).getObjectToken().astext = "table3";
}
}
t.setString("(tableX join tableY using (id)) as table3");
}
}
//System.out.println(select.toString());
assertTrue(select.toString().equalsIgnoreCase("select table1.col1, table3.col2\n" +
"from table1, (tableX join tableY using (id)) as table3\n" +
"where table1.foo > table3.foo"));
}
public void testRemoveResultColumn(){
parser.sqltext = "SELECT A as A_Alias, B AS B_Alias FROM TABLE_X";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
TResultColumnList columns = select.getResultColumnList();
columns.removeResultColumn(1);
// System.out.println(select.toString());
assertTrue(select.toString().equalsIgnoreCase("SELECT A as A_Alias FROM TABLE_X"));
columns.addResultColumn("x");
assertTrue(select.toString().equalsIgnoreCase("SELECT A as A_Alias,x FROM TABLE_X"));
}
public void testAddResultColumn(){
parser.sqltext = "SELECT A as A_Alias, B AS B_Alias FROM TABLE_X";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
TResultColumnList columns = select.getResultColumnList();
columns.addResultColumn("d as d_alias");
assertTrue(select.toString().equalsIgnoreCase("SELECT A as A_Alias, B AS B_Alias,d as d_alias FROM TABLE_X"));
}
public void testRemoveAndAddResultColumn(){
parser.sqltext = "SELECT A.COLUMN1, B.COLUMN2 from TABLE1 A, TABLE2 B where A.COLUMN1=B.COLUMN1";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
TResultColumnList columns = select.getResultColumnList();
columns.removeResultColumn(1);
columns.getResultColumn(0).setString("B.COLUMN3");
assertTrue(select.toString().equalsIgnoreCase("SELECT B.COLUMN3 from TABLE1 A, TABLE2 B where A.COLUMN1=B.COLUMN1"));
// System.out.print(select.toString());
}
public void testReplaceColumn(){
parser.sqltext = "SELECT * FROM TABLE_X";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
TResultColumnList columns = select.getResultColumnList();
if (columns.getResultColumn(0).toString().equalsIgnoreCase("*")){
columns.getResultColumn(0).setString("TABLE_X.*");
}
//System.out.println(select.toString());
assertTrue(select.toString().equalsIgnoreCase("SELECT TABLE_X.* FROM TABLE_X"));
}
public void testRemoveTable1(){
parser.sqltext = "SELECT * FROM t1,t2 where t1.f1=t2.f2";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
TJoinList joinList = select.joins;
// let's remove t1 and where clause
joinList.removeJoin(0);
select.getWhereClause().setString(" ");
assertTrue(select.toString().trim().equalsIgnoreCase("SELECT * FROM t2"));
}
public void testRemoveTable2(){
parser.sqltext = "SELECT * FROM t1,t2 where t1.f1=t2.f2";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
TJoinList joinList = select.joins;
// let's remove t2 and where clause
joinList.removeJoin(1);
select.getWhereClause().setString(" ");
assertTrue(select.toString().trim().equalsIgnoreCase("SELECT * FROM t1"));
}
// SELECT * FROM t1,t2 where t1.f1=t2.f2
// covert to
// SELECT * FROM t1 left join t2 on t1.f1=t2.f2
// this includes following steps
// 1. remove t2
// 2. replace t1 with t1 left join t2 on t1.f1=t2.f2
// 3. remove where clause
// for a detailed demo about how to Rewrite Oracle propriety joins to ANSI SQL compliant joins.
// http://www.dpriver.com/blog/list-of-demos-illustrate-how-to-use-general-sql-parser/rewrite-oracle-propriety-joins-to-ansi-sql-compliant-joins/
// Rewrite SQL Server proprietary joins to ANSI SQL compliant joins.
// http://www.dpriver.com/blog/list-of-demos-illustrate-how-to-use-general-sql-parser/rewrite-sql-server-propriety-joins-to-ansi-sql-compliant-joins/
public void testRemoveTable3(){
parser.sqltext = "SELECT * FROM t1,t2 where t1.f1=t2.f2";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
TJoinList joinList = select.joins;
// let's remove t2 and where clause
joinList.removeJoin(1);
//replace t1 with t1 left join,t2 on t1.f1=t2.f2
joinList.getJoin(0).setString("t1 left join t2 on t1.f1=t2.f2");
// remove where clause
select.getWhereClause().setString(" ");
// System.out.println(select.toString());
assertTrue(select.toString().trim().equalsIgnoreCase("SELECT * FROM t1 left join t2 on t1.f1=t2.f2"));
}
public void testRemoveCTE(){
parser.sqltext = "with test as (select id from emp)\n" +
"select * from test";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.getStartToken().setString(""); // remove WITH token
TSourceToken startToken = select.getCteList().getStartToken();
TSourceToken endToken = select.getCteList().getEndToken();
for(int i=startToken.posinlist;i<=endToken.posinlist ;i++){
startToken.container.get(i).setString(""); // remove all token of cte
}
// System.out.println(select.toString());
assertTrue(select.toString().trim().equalsIgnoreCase("select * from test"));
}
public void testAddWhereClause(){
parser.sqltext = "SELECT * FROM TABLE_X where f > 0";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.addWhereClause("c>1");
// System.out.println(select.toString());
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X where (f > 0) and c>1"));
}
public void testAddWhereClauseOR(){
parser.sqltext = "SELECT * FROM TABLE_X where f > 0";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.addWhereClauseOR("c>1");
// System.out.println(select.toString());
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X where (f > 0) or c>1"));
}
public void testAddWhereClause1(){
parser.sqltext = "select count(*) from TableName where NOT a OR NOT b";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.addCondition("c=1");
assertTrue(select.toString().equalsIgnoreCase("select count(*) from TableName where (NOT a OR NOT b) and c=1"));
}
public void testAddWhereClause2(){
parser.sqltext = "SELECT * FROM TABLE_X";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.addWhereClause("c>1");
// System.out.println(select.toString());
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X where c>1"));
}
public void testAddWhereClause3(){
parser.sqltext = "SELECT * FROM TABLE_X group by a";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.addWhereClause("c>1");
//System.out.println(select.toString());
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X where c>1 group by a"));
}
//
public void testAddWhereAfterJoin(){
parser.sqltext = "SELECT tableA.itemA1, tableB.itemB1\n"
+ " FROM tableA\n"
+ " INNER JOIN tableB\n"
+ " ON tableB.itemB2 = tableA.itemA2\n"
+ " INNER JOIN (\n"
+ " SELECT tableC.itemC1\n"
+ " FROM tableC\n"
+ " WHERE tableC.itemC3='ABC'\n"
+ " GROUP BY tableC.itemC1\n"
+ ") unNamedJoin\n"
+ " ON unNamedJoin.itemC1 = tableB.itemB2\n";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
TJoinList joinList = select.joins;
TJoinItem item = joinList.getJoin( 0 ).getJoinItems( ).getJoinItem( 0 );
item.getOnCondition( ).addANDCondition( "1=1" );
select.addWhereClause("c>1");
//System.out.println(select.toString().trim());
assertTrue(select.toString().trim().equalsIgnoreCase("SELECT tableA.itemA1, tableB.itemB1\n" +
" FROM tableA\n" +
" INNER JOIN tableB\n" +
" ON (tableB.itemB2 = tableA.itemA2) and 1=1\n" +
" INNER JOIN (\n" +
" SELECT tableC.itemC1\n" +
" FROM tableC\n" +
" WHERE tableC.itemC3='ABC'\n" +
" GROUP BY tableC.itemC1\n" +
") unNamedJoin\n" +
" ON unNamedJoin.itemC1 = tableB.itemB2 where c>1"));
}
public void testRemoveWhereClause(){
parser.sqltext = "SELECT * FROM TABLE_X where a>1 order by a";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.getWhereClause().setString(" ");
// System.out.println(select.toString());
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X order by a"));
}
public void testAddNewOrderBy(){
parser.sqltext = "SELECT * FROM TABLE_X";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.addOrderBy("a desc");
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X order by a desc"));
parser.sqltext = "SELECT * FROM TABLE_X where a>1";
assertTrue(parser.parse() == 0);
select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.addOrderBy("a desc");
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X where a>1 order by a desc"));
parser.sqltext = "SELECT * FROM TABLE_X where a>1 group by a having count(*) > 1";
assertTrue(parser.parse() == 0);
select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.addOrderBy("a asc");
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X where a>1 group by a having count(*) > 1 order by a asc"));
parser.sqltext = "SELECT * FROM TABLE_X where a>1 group by a having count(*) > 1 order by c desc";
assertTrue(parser.parse() == 0);
select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.addOrderBy("a asc");
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X where a>1 group by a having count(*) > 1 order by c desc,a asc"));
parser.sqltext = "SELECT * FROM TABLE_X";
assertTrue(parser.parse() == 0);
select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.addWhereClause("a>1 and b>2") ;
select.addOrderBy("a desc");
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X where a>1 and b>2 order by a desc"));
// System.out.println(select.toString());
}
public void testAddOrderBy(){
parser.sqltext = "SELECT * FROM TABLE_X order by a";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.getOrderbyClause().addOrderByItem("b");
//System.out.println(select.toString());
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X order by a,b"));
}
public void testRemoveOrderBy(){
parser.sqltext = "SELECT * FROM TABLE_X order by a,b";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.getOrderbyClause().removeOrderByItem(1);
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X order by a"));
select.getOrderbyClause().removeOrderByItem(0);
assertTrue(select.toString().trim().equalsIgnoreCase("SELECT * FROM TABLE_X"));
}
public void testReplaceOrderBy1(){
parser.sqltext = "SELECT * FROM TABLE_X order by a";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.getOrderbyClause().getItems().getOrderByItem(0).setString("b asc,c desc");
//select.getOrderbyClause().addOrderByItem("c");
//System.out.println(select.toString());
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X order by b asc,c desc"));
}
public void testReplaceOrderBy2(){
parser.sqltext = "SELECT * FROM TABLE_X order by a";
assertTrue(parser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)parser.sqlstatements.get(0);
select.getOrderbyClause().getItems().getOrderByItem(0).setString("b asc");
select.getOrderbyClause().addOrderByItem("c desc");
select.getOrderbyClause().addOrderByItem("d desc");
// System.out.println(select.toString());
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X order by b asc,c desc,d desc"));
}
public void testRemoveSetClauseInUpdate(){
parser.sqltext = "UPDATE BLA SET A=2, B=3 WHERE X=5";
assertTrue(parser.parse() == 0);
TUpdateSqlStatement updateSqlStatement = (TUpdateSqlStatement)parser.sqlstatements.get(0);
TResultColumnList setClauses = updateSqlStatement.getResultColumnList();
setClauses.removeResultColumn(1); // the second set expression
assertTrue(updateSqlStatement.toString().equalsIgnoreCase("UPDATE BLA SET A=2 WHERE X=5"));
}
public void testModifyJoin(){
parser.sqltext = "select * from t1 inner join t2 on t1.col1 = t2.col2";
assertTrue(parser.parse() == 0);
TSelectSqlStatement selectSqlStatement = (TSelectSqlStatement)parser.sqlstatements.get(0);
selectSqlStatement.joins.getJoin(0).setString("t2 left join t1 on t1.col3 = t2.col5");
assertTrue(selectSqlStatement.toString().equalsIgnoreCase("select * from t2 left join t1 on t1.col3 = t2.col5"));
}
public void testModifyTable(){
parser.sqltext = "select * from t1";
assertTrue(parser.parse() == 0);
TTable table = parser.sqlstatements.get(0).tables.getTable(0);
table.setString("newt");
assertTrue(parser.sqlstatements.get(0).toString().equalsIgnoreCase("select * from newt"));
}
public void testModifyTable2(){
parser.sqltext = "SELECT * from employee e";
assertTrue(parser.parse() == 0);
TTable table = parser.sqlstatements.get(0).tables.getTable(0);
table.getTableName().setString("new_employee");
assertTrue(parser.sqlstatements.get(0).toString().equalsIgnoreCase("SELECT * from new_employee e"));
table.getAliasClause().setString("new_alias");
assertTrue(parser.sqlstatements.get(0).toString().equalsIgnoreCase("SELECT * from new_employee new_alias"));
}
public void testAddTableAlias(){
parser.sqltext = "select * from t1";
assertTrue(parser.parse() == 0);
TTable table = parser.sqlstatements.get(0).tables.getTable(0);
table.setString(table.toString()+ " AS foo ");
assertTrue(parser.sqlstatements.get(0).toString().trim().equalsIgnoreCase("select * from t1 AS foo"));
//System.out.print(parser.sqlstatements.get(0).toString());
}
public void testModifyTableInCreate(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvimpala);
sqlparser.sqltext = "create table if not exists campaign_1 ( id int, name string )";
int ret = sqlparser.parse();
TCustomSqlStatement stmt = sqlparser.sqlstatements.get(0);
TTable table = stmt.tables.getTable(0);
table.setString("prefix_." + table.toString() + " " + table.getAliasName());;
assertTrue(table.toString().trim().equalsIgnoreCase("prefix_.campaign_1"));
}
public void testRemoveHavingClause(){
parser.sqltext = "SELECT\n" +
"c.ID AS \"SMS.ID\"\n" +
"FROM\n" +
"SUMMIT.cntrb_detail c\n" +
"where\n" +
"c.cntrb_date >='$GivingFromDate$'\n" +
"and c.cntrb_date<='$GivingThruDate$'\n" +
"group by c.id\n" +
"having sum(c.amt) >= '$GivingFromAmount$' and sum(c.amt) <= '$GivingThruAmount$'";
assertTrue(parser.parse() == 0);
TSelectSqlStatement selectSqlStatement = (TSelectSqlStatement)parser.sqlstatements.get(0);
TGroupBy groupBy = selectSqlStatement.getGroupByClause();
TExpression having = groupBy.getHavingClause();
having.setString(" ");
groupBy.getHAVING().setString(" ");
assertTrue(selectSqlStatement.toString().trim().equalsIgnoreCase("SELECT\n" +
"c.ID AS \"SMS.ID\"\n" +
"FROM\n" +
"SUMMIT.cntrb_detail c\n" +
"where\n" +
"c.cntrb_date >='$GivingFromDate$'\n" +
"and c.cntrb_date<='$GivingThruDate$'\n" +
"group by c.id"));
//System.out.println(selectSqlStatement.toString());
}
public void testAlterTable(){
TGSqlParser lcparser = new TGSqlParser(EDbVendor.dbvoracle);
lcparser.sqltext = "ALTER TABLE P_CAP \n" +
"ADD CONSTRAINT FK_P_CAP_R_PH_111_P_CEL \n" +
"FOREIGN KEY (CAP_CEL) REFERENCES P_CEL (CEL_COD);";
assertTrue(lcparser.parse() == 0);
TAlterTableStatement at = (TAlterTableStatement) lcparser.sqlstatements.get(0);
TAlterTableOption alterTableOption = at.getAlterTableOptionList().getAlterTableOption(0);
TConstraint constraint = alterTableOption.getConstraintList().getConstraint(0);
assertTrue(constraint.getConstraint_type() == EConstraintType.foreign_key);
TObjectName refColumn = constraint.getReferencedColumnList().getObjectName(0);
refColumn.setString(refColumn.toString()+",CEL_NEWID");
//System.out.println(at.toString());
assertTrue(at.toString().equalsIgnoreCase("ALTER TABLE P_CAP \n" +
"ADD CONSTRAINT FK_P_CAP_R_PH_111_P_CEL \n" +
"FOREIGN KEY (CAP_CEL) REFERENCES P_CEL (CEL_COD,CEL_NEWID);"));
}
public void testAlterTable2(){
TGSqlParser lcparser = new TGSqlParser(EDbVendor.dbvoracle);
lcparser.sqltext = "ALTER TABLE P_CAP \n" +
"ADD CONSTRAINT FK_P_CAP_R_PH_111_P_CEL \n" +
"FOREIGN KEY (CAP_CEL) REFERENCES P_CEL (CEL_COD);";
assertTrue(lcparser.parse() == 0);
TAlterTableStatement at = (TAlterTableStatement) lcparser.sqlstatements.get(0);
TAlterTableOption alterTableOption = at.getAlterTableOptionList().getAlterTableOption(0);
TConstraint constraint = alterTableOption.getConstraintList().getConstraint(0);
assertTrue(constraint.getConstraint_type() == EConstraintType.foreign_key);
TObjectName refColumn = constraint.getReferencedColumnList().getObjectName(0);
TDummy dummy = new TDummy();
dummy.setGsqlparser(lcparser);
dummy.setString("CEL_NEWID,");
dummy.addAllMyTokensToTokenList(refColumn.getStartToken().container,refColumn.getStartToken().posinlist );
// System.out.println(at.toString());
assertTrue(at.toString().equalsIgnoreCase("ALTER TABLE P_CAP \n" +
"ADD CONSTRAINT FK_P_CAP_R_PH_111_P_CEL \n" +
"FOREIGN KEY (CAP_CEL) REFERENCES P_CEL (CEL_NEWID,CEL_COD);"));
}
public void testAddWhere(){
TGSqlParser lcparser = new TGSqlParser(EDbVendor.dbvoracle);
lcparser.sqltext = "SELECT * FROM TABLE_X";
assertTrue(lcparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)lcparser.sqlstatements.get(0);
TSourceToken prevToken = select.joins.getEndToken();
TDummy dummy = new TDummy();
dummy.setGsqlparser(lcparser);
dummy.setString(" where f > 0");
dummy.addAllMyTokensToTokenList(prevToken.container,prevToken.posinlist + 1 );
for(int i=0;i<prevToken.getNodesEndWithThisToken().size();i++){
TParseTreeNode node = prevToken.getNodesEndWithThisToken().getElement(i);
if (!((node instanceof TJoinList)
||(node instanceof TJoin)
||(node instanceof TJoinItemList)
||(node instanceof TJoinItem)
))
{
// change all end token of parse tree node except the table from join clause
node.setEndToken(dummy.getEndToken());
}
}
assertTrue(select.toString().equalsIgnoreCase("SELECT * FROM TABLE_X where f > 0"));
// System.out.println(select.toString());
}
public void testRemoveParenthesis(){
parser.sqltext = "select * from ((select * from some_table where some_column < ?)) some_view where a_column = something";
assertTrue(parser.parse() == 0);
removeDuplicatedParenthesis(parser.sourcetokenlist);
assertTrue(parser.sqlstatements.get(0).toString().equalsIgnoreCase("select * from ( select * from some_table where some_column < ? ) some_view where a_column = something"));
parser.sqltext = "select * from ((select a from b) union (select a from d))";
assertTrue(parser.parse() == 0);
removeDuplicatedParenthesis(parser.sourcetokenlist);
assertTrue(parser.sqlstatements.get(0).toString().equalsIgnoreCase("select * from ((select a from b) union (select a from d))"));
parser.sqltext = "((select a from b) order by a)";
assertTrue(parser.parse() == 0);
removeDuplicatedParenthesis(parser.sourcetokenlist);
assertTrue(parser.sqlstatements.get(0).toString().equalsIgnoreCase("((select a from b) order by a)"));
parser.sqltext = "(((select a from b)) order by a)";
assertTrue(parser.parse() == 0);
removeDuplicatedParenthesis(parser.sourcetokenlist);
assertTrue(parser.sqlstatements.get(0).toString().equalsIgnoreCase("(( select a from b ) order by a)"));
parser.sqltext = "((((select a from b)) order by a))";
assertTrue(parser.parse() == 0);
removeDuplicatedParenthesis(parser.sourcetokenlist);
assertTrue(parser.sqlstatements.get(0).toString().equalsIgnoreCase("( ( select a from b ) order by a )"));
parser.sqltext = "select * from user_table where ((username like '%admin%'));";
assertTrue(parser.parse() == 0);
removeDuplicatedParenthesis(parser.sourcetokenlist);
assertTrue(parser.sqlstatements.get(0).toString().equalsIgnoreCase("select * from user_table where ( username like '%admin%' );"));
}
private int removeDuplicatedParenthesis(TSourceTokenList sourceTokenList){
int cnt = 0;
TSourceToken st = null, prevEndToken = null;
boolean inParenthesis = false;
for(int i=0;i<sourceTokenList.size();i++){
st = sourceTokenList.get(i);
if (st.isnonsolidtoken()) continue;
if ((st.tokencode == '(')&&(st.getLinkToken() != null)){
if (inParenthesis){
if (st.getLinkToken() == prevEndToken.prevSolidToken()){
//this is duplicated token, remove this token
st.setString(" ");
st.getLinkToken().setString(" ");
cnt++;
}
prevEndToken = st.getLinkToken();
}else {
inParenthesis = true;
prevEndToken = st.getLinkToken();
}
}else {
inParenthesis = false;
prevEndToken = null;
}
}
return cnt;
}
protected static void iterateStmt(TCustomSqlStatement stmt){
//System.out.println(stmt.sqlstatementtype.toString());
if (stmt.sqlstatementtype == ESqlStatementType.sstselect){
int parenthesisNum = 0 ;
if (stmt.getEndToken().tokencode == ')'){
parenthesisNum++;
TSourceToken st = stmt.getEndToken();
TSourceToken pst = st.prevSolidToken();
while (pst != null){
if (pst.tokencode == ')'){
parenthesisNum++;
pst = pst.prevSolidToken();
}else{
break;
}
}
}
if (parenthesisNum > 1){
TSourceToken beginSt = stmt.getStartToken();
TSourceToken endSt = stmt.getEndToken();
int i = parenthesisNum - 1;
while ((i>0)&&(beginSt!=null)&&(endSt != null)){
beginSt.setString(" ");
beginSt = beginSt.nextSolidToken();
endSt.setString(" ");
endSt = endSt.prevSolidToken();
i--;
}
}
}
for (int i=0;i<stmt.getStatements().size();i++){
iterateStmt(stmt.getStatements().get(i));
}
}
}