Package com.alibaba.druid.sql.dialect.sqlserver.ast

Examples of com.alibaba.druid.sql.dialect.sqlserver.ast.SQLServerSelectQueryBlock

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        SQLSelectStatement selectStmt = (SQLSelectStatement) stmt;

        SQLSelect select = selectStmt.getSelect();
        Assert.assertNotNull(select.getQuery());
        SQLServerSelectQueryBlock queryBlock = (SQLServerSelectQueryBlock) select.getQuery();
        Assert.assertNull(queryBlock.getGroupBy());

        String fomatSQL = SQLUtils.toSQLString(statementList, JdbcUtils.SQL_SERVER);

        System.out.println(fomatSQL);
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        SQLSelectStatement selectStmt = (SQLSelectStatement) stmt;

        SQLSelect select = selectStmt.getSelect();
        Assert.assertNotNull(select.getQuery());
        SQLServerSelectQueryBlock queryBlock = (SQLServerSelectQueryBlock) select.getQuery();
        Assert.assertNull(queryBlock.getGroupBy());

        String fomatSQL = SQLUtils.toSQLString(statementList, JdbcUtils.SQL_SERVER);

        System.out.println(fomatSQL);
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            accept(Token.RPAREN);

            return queryRest(select);
        }

        SQLServerSelectQueryBlock queryBlock = new SQLServerSelectQueryBlock();

        if (lexer.token() == Token.SELECT) {
            lexer.nextToken();

            if (lexer.token() == Token.DISTINCT) {
                queryBlock.setDistionOption(SQLSetQuantifier.DISTINCT);
                lexer.nextToken();
            } else if (lexer.token() == Token.ALL) {
                queryBlock.setDistionOption(SQLSetQuantifier.ALL);
                lexer.nextToken();
            }

            if (lexer.token() == Token.TOP) {
                SQLServerTop top = this.createExprParser().parseTop();
                queryBlock.setTop(top);
            }

            parseSelectList(queryBlock);
        }
       
        if (lexer.token() == Token.INTO) {
            lexer.nextToken();
           
            SQLTableSource into = this.parseTableSource();
            queryBlock.setInto((SQLExprTableSource) into);
        }

        parseFrom(queryBlock);

        parseWhere(queryBlock);
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        return new SQLServerOutputVisitor(out);
    }

    public SQLSelectQueryBlock explainToSelectSQLObject(MappingEngine engine, String sql, MappingContext context) {
        SQLServerSelectParser selectParser = new SQLServerSelectParser(sql);
        SQLServerSelectQueryBlock query = (SQLServerSelectQueryBlock) selectParser.query();

        Integer maxLimit = engine.getMaxLimit();

        if (maxLimit != null) {
            if (query.getTop() == null) {
                Top top = new Top();
                top.setExpr(new SQLNumberExpr(maxLimit));
                query.setTop(top);
            } else {
                SQLNumericLiteralExpr rowCountExpr = (SQLNumericLiteralExpr) query.getTop().getExpr();
                int rowCount = rowCountExpr.getNumber().intValue();
                if (rowCount > maxLimit.intValue()) {
                    rowCountExpr.setNumber(maxLimit);
                }
            }
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            accept(Token.RPAREN);

            return queryRest(select);
        }

        SQLServerSelectQueryBlock queryBlock = new SQLServerSelectQueryBlock();

        if (lexer.token() == Token.SELECT) {
            lexer.nextToken();

            if (lexer.token() == Token.DISTINCT) {
                queryBlock.setDistionOption(SQLSetQuantifier.DISTINCT);
                lexer.nextToken();
            } else if (lexer.token() == Token.ALL) {
                queryBlock.setDistionOption(SQLSetQuantifier.ALL);
                lexer.nextToken();
            }

            if (lexer.token() == Token.TOP) {
                Top top = new Top();
                lexer.nextToken();
                top.setExpr(createExprParser().primary());
                queryBlock.setTop(top);
            }

            parseSelectList(queryBlock);
        }
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                                                   SQLBinaryOperator.LessThanOrEqual, //
                                                   new SQLNumberExpr(count + offset));
        SQLBinaryOpExpr pageCondition = new SQLBinaryOpExpr(gt, SQLBinaryOperator.BooleanAnd, lteq);

        if (query instanceof SQLSelectQueryBlock) {
            SQLServerSelectQueryBlock queryBlock = (SQLServerSelectQueryBlock) query;
            if (offset <= 0) {
                queryBlock.setTop(new SQLServerTop(new SQLNumberExpr(count)));
                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()));
        offsetQueryBlock.setFrom(new SQLSubqueryTableSource(new SQLSelect(countQueryBlock), "XXX"));
        offsetQueryBlock.setWhere(pageCondition);

        return SQLUtils.toSQLString(offsetQueryBlock, dbType);
    }
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        if (JdbcConstants.POSTGRESQL.equals(dbType)) {
            return new PGSelectQueryBlock();
        }

        if (JdbcConstants.SQL_SERVER.equals(dbType) || JdbcUtils.JTDS.equals(dbType)) {
            return new SQLServerSelectQueryBlock();
        }

        if (JdbcConstants.DB2.equals(dbType)) {
            return new DB2SelectQueryBlock();
        }
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            accept(Token.RPAREN);

            return queryRest(select);
        }

        SQLServerSelectQueryBlock queryBlock = new SQLServerSelectQueryBlock();

        if (lexer.token() == Token.SELECT) {
            lexer.nextToken();

            if (lexer.token() == Token.DISTINCT) {
                queryBlock.setDistionOption(SQLSetQuantifier.DISTINCT);
                lexer.nextToken();
            } else if (lexer.token() == Token.ALL) {
                queryBlock.setDistionOption(SQLSetQuantifier.ALL);
                lexer.nextToken();
            }

            if (lexer.token() == Token.TOP) {
                Top top = new Top();
                lexer.nextToken();
                top.setExpr(createExprParser().primary());
                queryBlock.setTop(top);
            }

            parseSelectList(queryBlock);
        }
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        return new SQLServerOutputVisitor(out);
    }

    public SQLSelectQueryBlock explainToSelectSQLObject(MappingEngine engine, String sql, MappingContext context) {
        SQLServerSelectParser selectParser = new SQLServerSelectParser(sql);
        SQLServerSelectQueryBlock query = (SQLServerSelectQueryBlock) selectParser.query();

        Integer maxLimit = engine.getMaxLimit();

        if (maxLimit != null) {
            if (query.getTop() == null) {
                Top top = new Top();
                top.setExpr(new SQLNumberExpr(maxLimit));
                query.setTop(top);
            } else {
                SQLNumericLiteralExpr rowCountExpr = (SQLNumericLiteralExpr) query.getTop().getExpr();
                int rowCount = rowCountExpr.getNumber().intValue();
                if (rowCount > maxLimit.intValue()) {
                    rowCountExpr.setNumber(maxLimit);
                }
            }
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        if (JdbcConstants.POSTGRESQL.equals(dbType)) {
            return new PGSelectQueryBlock();
        }

        if (JdbcConstants.SQL_SERVER.equals(dbType)) {
            return new SQLServerSelectQueryBlock();
        }

        return new SQLSelectQueryBlock();
    }
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Related Classes of com.alibaba.druid.sql.dialect.sqlserver.ast.SQLServerSelectQueryBlock

  • com.alibaba.druid.bvt.sql.sqlserver.SQLServerSelectTest_cross_apply
  • com.alibaba.druid.bvt.sql.sqlserver.SQLServerSelectTest_outer_apply
  • com.alibaba.druid.mapping.spi.MSSQLServerMappingProvider
  • com.alibaba.druid.sql.dialect.sqlserver.parser.SQLServerSelectParser
  • com.alibaba.druid.sql.PagerUtils
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