Examples of SQLSelectQuery

Examples of com.alibaba.druid.sql.ast.statement.SQLSelectQuery

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                lexer.nextToken();
            } else if (lexer.token() == Token.DISTINCT) {
                union.setOperator(SQLUnionOperator.DISTINCT);
                lexer.nextToken();
            }
            SQLSelectQuery right = this.query();
            union.setRight(right);

            return unionRest(union);
        }

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

            SQLUnionQuery union = new SQLUnionQuery();
            union.setLeft(selectQuery);

            union.setOperator(SQLUnionOperator.INTERSECT);

            SQLSelectQuery right = this.query();
            union.setRight(right);

            return union;
        }

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

            SQLUnionQuery union = new SQLUnionQuery();
            union.setLeft(selectQuery);

            union.setOperator(SQLUnionOperator.MINUS);

            SQLSelectQuery right = this.query();
            union.setRight(right);

            return union;
        }
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Examples of com.alibaba.druid.sql.ast.statement.SQLSelectQuery

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    public SQLSelectQuery query() {
        if (lexer.token() == Token.LPAREN) {
            lexer.nextToken();

            SQLSelectQuery select = query();
            accept(Token.RPAREN);

            return queryRest(select);
        }
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Examples of com.alibaba.druid.sql.ast.statement.SQLSelectQuery

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        return limit(selectStmt.getSelect(), dbType, offset, count);
    }

    public static String limit(SQLSelect select, String dbType, int offset, int count) {
        SQLSelectQuery query = select.getQuery();

        if (JdbcConstants.ORACLE.equals(dbType)) {
            return limitOracle(select, dbType, offset, count);
        }
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Examples of com.alibaba.druid.sql.ast.statement.SQLSelectQuery

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        throw new UnsupportedOperationException();
    }

    private static String limitDB2(SQLSelect select, String dbType, int offset, int count) {
        SQLSelectQuery query = select.getQuery();

        SQLBinaryOpExpr gt = new SQLBinaryOpExpr(new SQLIdentifierExpr("ROWNUM"), //
                                                 SQLBinaryOperator.GreaterThan, //
                                                 new SQLNumberExpr(offset));
        SQLBinaryOpExpr lteq = new SQLBinaryOpExpr(new SQLIdentifierExpr("ROWNUM"), //
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Examples of com.alibaba.druid.sql.ast.statement.SQLSelectQuery

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        return SQLUtils.toSQLString(offsetQueryBlock, dbType);
    }

    private static String limitSQLServer(SQLSelect select, String dbType, int offset, int count) {
        SQLSelectQuery query = select.getQuery();

        SQLBinaryOpExpr gt = new SQLBinaryOpExpr(new SQLIdentifierExpr("ROWNUM"), //
                                                 SQLBinaryOperator.GreaterThan, //
                                                 new SQLNumberExpr(offset));
        SQLBinaryOpExpr lteq = new SQLBinaryOpExpr(new SQLIdentifierExpr("ROWNUM"), //
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Examples of com.alibaba.druid.sql.ast.statement.SQLSelectQuery

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        return SQLUtils.toSQLString(offsetQueryBlock, dbType);
    }

    private static String limitOracle(SQLSelect select, String dbType, int offset, int count) {
        SQLSelectQuery query = select.getQuery();

        if (query instanceof SQLSelectQueryBlock) {
            OracleSelectQueryBlock queryBlock = (OracleSelectQueryBlock) query;
            if (queryBlock.getGroupBy() == null && select.getOrderBy() == null && offset <= 0) {
                SQLExpr condition = new SQLBinaryOpExpr(new SQLIdentifierExpr("ROWNUM"), //
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Examples of com.alibaba.druid.sql.ast.statement.SQLSelectQuery

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    private static String count(SQLSelect select, String dbType) {
        if (select.getOrderBy() != null) {
            select.setOrderBy(null);
        }

        SQLSelectQuery query = select.getQuery();
        clearOrderBy(query);

        if (query instanceof SQLSelectQueryBlock) {
            SQLSelectItem countItem = createCountItem(dbType);
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Examples of com.alibaba.druid.sql.ast.statement.SQLSelectQuery

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                lexer.nextToken();
            } else if (lexer.token() == Token.DISTINCT) {
                union.setOperator(SQLUnionOperator.DISTINCT);
                lexer.nextToken();
            }
            SQLSelectQuery right = this.query();
            union.setRight(right);

            return unionRest(union);
        }

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

            SQLUnionQuery union = new SQLUnionQuery();
            union.setLeft(selectQuery);

            union.setOperator(SQLUnionOperator.EXCEPT);

            SQLSelectQuery right = this.query();
            union.setRight(right);

            return union;
        }

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

            SQLUnionQuery union = new SQLUnionQuery();
            union.setLeft(selectQuery);

            union.setOperator(SQLUnionOperator.INTERSECT);

            SQLSelectQuery right = this.query();
            union.setRight(right);

            return union;
        }

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

            SQLUnionQuery union = new SQLUnionQuery();
            union.setLeft(selectQuery);

            union.setOperator(SQLUnionOperator.MINUS);

            SQLSelectQuery right = this.query();
            union.setRight(right);

            return union;
        }
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Examples of com.alibaba.druid.sql.ast.statement.SQLSelectQuery

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    public SQLSelectQuery query() {
        if (lexer.token() == Token.LPAREN) {
            lexer.nextToken();

            SQLSelectQuery select = query();
            accept(Token.RPAREN);

            return queryRest(select);
        }
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Examples of com.alibaba.druid.sql.ast.statement.SQLSelectQuery

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            lexer.nextToken();
            SQLTableSource tableSource;
            if (lexer.token() == Token.SELECT || lexer.token() == Token.WITH) {
                SQLSelect select = select();
                accept(Token.RPAREN);
                SQLSelectQuery query = queryRest(select.getQuery());
                if (query instanceof SQLUnionQuery) {
                    tableSource = new SQLUnionQueryTableSource((SQLUnionQuery) query);
                } else {
                    tableSource = new SQLSubqueryTableSource(select);
                }
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