Package com.alibaba.druid.sql.ast

Examples of com.alibaba.druid.sql.ast.SQLOver

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        accept(Token.RPAREN);

        if (lexer.token() == Token.OVER) {
            lexer.nextToken();
            SQLOver over = new SQLOver();
            accept(Token.LPAREN);

            if (identifierEquals("PARTITION")) {
                lexer.nextToken();
                accept(Token.BY);

                if (lexer.token() == (Token.LPAREN)) {
                    lexer.nextToken();
                    exprList(over.getPartitionBy());
                    accept(Token.RPAREN);
                } else {
                    exprList(over.getPartitionBy());
                }
            }

            over.setOrderBy(parseOrderBy());

            accept(Token.RPAREN);
            aggregateExpr.setOver(over);

        }
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        accept(Token.RPAREN);

        if (lexer.token() == Token.OVER) {
            lexer.nextToken();
            SQLOver over = new SQLOver();
            accept(Token.LPAREN);

            if (identifierEquals("PARTITION")) {
                lexer.nextToken();
                accept(Token.BY);

                if (lexer.token() == (Token.LPAREN)) {
                    lexer.nextToken();
                    exprList(over.getPartitionBy());
                    accept(Token.RPAREN);
                } else {
                    exprList(over.getPartitionBy());
                }
            }

            over.setOrderBy(parseOrderBy());

            accept(Token.RPAREN);
            aggregateExpr.setOver(over);

        }
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        accept(Token.RPAREN);
       
        if (lexer.token() == Token.OVER) {
            lexer.nextToken();
            SQLOver over = new SQLOver();
            accept(Token.LPAREN);
           
            if (identifierEquals("PARTITION")) {
                lexer.nextToken();
                accept(Token.BY);

                if (lexer.token() == (Token.LPAREN)) {
                    lexer.nextToken();
                    exprList(over.getPartitionBy());
                    accept(Token.RPAREN);
                } else {
                    exprList(over.getPartitionBy());
                }
            }


            over.setOrderBy(parseOrderBy());
           
            // if (over.getOrderBy() != null) {
            // //TODO window
            // }
           
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                return SQLUtils.toSQLString(select, dbType);
            }

            SQLAggregateExpr aggregateExpr = new SQLAggregateExpr("ROW_NUMBER");
            SQLOrderBy orderBy = select.getOrderBy();
            aggregateExpr.setOver(new SQLOver(orderBy));
            select.setOrderBy(null);

            queryBlock.getSelectList().add(new SQLSelectItem(aggregateExpr, "ROWNUM"));

            DB2SelectQueryBlock countQueryBlock = new DB2SelectQueryBlock();
            countQueryBlock.getSelectList().add(new SQLSelectItem(new SQLAllColumnExpr()));

            countQueryBlock.setFrom(new SQLSubqueryTableSource(select, "XX"));

            countQueryBlock.setWhere(pageCondition);

            return SQLUtils.toSQLString(countQueryBlock, dbType);
        }

        DB2SelectQueryBlock countQueryBlock = new DB2SelectQueryBlock();
        countQueryBlock.getSelectList().add(new SQLSelectItem(new SQLPropertyExpr(new SQLIdentifierExpr("XX"), "*")));
        SQLAggregateExpr aggregateExpr = new SQLAggregateExpr("ROW_NUMBER");
        SQLOrderBy orderBy = select.getOrderBy();
        aggregateExpr.setOver(new SQLOver(orderBy));
        select.setOrderBy(null);
        countQueryBlock.getSelectList().add(new SQLSelectItem(aggregateExpr, "ROWNUM"));

        countQueryBlock.setFrom(new SQLSubqueryTableSource(select, "XX"));

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                return SQLUtils.toSQLString(select, dbType);
            }

            SQLAggregateExpr aggregateExpr = new SQLAggregateExpr("ROW_NUMBER");
            SQLOrderBy orderBy = select.getOrderBy();
            aggregateExpr.setOver(new SQLOver(orderBy));
            select.setOrderBy(null);

            queryBlock.getSelectList().add(new SQLSelectItem(aggregateExpr, "ROWNUM"));

            SQLServerSelectQueryBlock countQueryBlock = new SQLServerSelectQueryBlock();
            countQueryBlock.getSelectList().add(new SQLSelectItem(new SQLAllColumnExpr()));

            countQueryBlock.setFrom(new SQLSubqueryTableSource(select, "XX"));

            countQueryBlock.setWhere(pageCondition);

            return SQLUtils.toSQLString(countQueryBlock, dbType);
        }
       

        SQLServerSelectQueryBlock countQueryBlock = new SQLServerSelectQueryBlock();
        countQueryBlock.getSelectList().add(new SQLSelectItem(new SQLPropertyExpr(new SQLIdentifierExpr("XX"), "*")));

        countQueryBlock.setFrom(new SQLSubqueryTableSource(select, "XX"));
       
        if (offset <= 0) {
            countQueryBlock.setTop(new SQLServerTop(new SQLNumberExpr(count)));
            return SQLUtils.toSQLString(countQueryBlock, dbType);
        }
       
        SQLAggregateExpr aggregateExpr = new SQLAggregateExpr("ROW_NUMBER");
        SQLOrderBy orderBy = select.getOrderBy();
        aggregateExpr.setOver(new SQLOver(orderBy));
        select.setOrderBy(null);
        countQueryBlock.getSelectList().add(new SQLSelectItem(aggregateExpr, "ROWNUM"));

        SQLServerSelectQueryBlock offsetQueryBlock = new SQLServerSelectQueryBlock();
        offsetQueryBlock.getSelectList().add(new SQLSelectItem(new SQLAllColumnExpr()));
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        accept(Token.RPAREN);

        if (lexer.token() == Token.OVER) {
            lexer.nextToken();
            SQLOver over = new SQLOver();
            accept(Token.LPAREN);

            if (identifierEquals("PARTITION")) {
                lexer.nextToken();
                accept(Token.BY);

                if (lexer.token() == (Token.LPAREN)) {
                    lexer.nextToken();
                    exprList(over.getPartitionBy());
                    accept(Token.RPAREN);
                } else {
                    exprList(over.getPartitionBy());
                }
            }

            over.setOrderBy(parseOrderBy());

            // if (over.getOrderBy() != null) {
            // //TODO window
            // }
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Related Classes of com.alibaba.druid.sql.ast.SQLOver

  • com.alibaba.druid.bvt.sql.SQLASTVisitorAdapterTest
  • com.alibaba.druid.sql.PagerUtils
  • com.alibaba.druid.sql.parser.SQLExprParser
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