Package com.alibaba.druid.sql.ast.statement

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


        SQLStatement stmt = stmtList.get(0);
        if (!(stmt instanceof SQLSelectStatement)) {
            return;
        }

        SQLSelectQuery query = ((SQLSelectStatement) stmt).getSelect().getQuery();
        if (query instanceof SQLSelectQueryBlock) {
            if (((SQLSelectQueryBlock) query).getFrom() == null) {
                LOG.error("invalid oracle validationQuery. " + validationQuery + ", may should be : " + validationQuery
                          + " FROM DUAL");
            }
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        SQLStatement stmt = stmtList.get(0);
        if (!(stmt instanceof SQLSelectStatement)) {
            return;
        }

        SQLSelectQuery query = ((SQLSelectStatement) stmt).getSelect().getQuery();
        if (query instanceof SQLSelectQueryBlock) {
            if (((SQLSelectQueryBlock) query).getFrom() == null) {
                LOG.error("invalid db2 validationQuery. " + validationQuery + ", may should be : " + validationQuery
                          + " FROM SYSDUMMY");
            }
View Full Code Here

        List<SQLSelectQueryBlock> groupList = new ArrayList<SQLSelectQueryBlock>();
        Stack<SQLSelectQuery> stack = new Stack<SQLSelectQuery>();

        stack.push(x);
        do {
            SQLSelectQuery query = stack.pop();
            if (query instanceof SQLSelectQueryBlock) {
                groupList.add((SQLSelectQueryBlock) query);
            } else if (query instanceof SQLUnionQuery) {
                SQLUnionQuery unionQuery = (SQLUnionQuery) query;
                stack.push(unionQuery.getLeft());
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        return isSimpleCountTableSource(visitor, subQuery.getSelect());
    }

    public static boolean isSimpleCountTableSource(WallVisitor visitor, SQLSelect select) {
        SQLSelectQuery query = select.getQuery();

        if (query instanceof SQLSelectQueryBlock) {
            SQLSelectQueryBlock queryBlock = (SQLSelectQueryBlock) query;

            boolean allawTrueWhere = false;
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        return false;
    }

    public static boolean isSimpleCaseTableSource(WallVisitor visitor, SQLSelect select) {
        SQLSelectQuery query = select.getQuery();

        if (query instanceof SQLSelectQueryBlock) {
            SQLSelectQueryBlock queryBlock = (SQLSelectQueryBlock) query;

            boolean allawTrueWhere = false;
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                    }

                    boolean sameToTopSelectSchema = false;
                    if (parent instanceof SQLSelectStatement) {
                        SQLSelectStatement selectStmt = (SQLSelectStatement) parent;
                        SQLSelectQuery query = selectStmt.getSelect().getQuery();
                        if (query instanceof SQLSelectQueryBlock) {
                            SQLSelectQueryBlock queryBlock = (SQLSelectQueryBlock) query;
                            SQLTableSource from = queryBlock.getFrom();

                            while (from instanceof SQLJoinTableSource) {
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            }

            if (queryBlock.getSelectList().size() == 1
                && queryBlock.getSelectList().get(0).getExpr() instanceof SQLAllColumnExpr) {
                if (from instanceof SQLSubqueryTableSource) {
                    SQLSelectQuery subQuery = ((SQLSubqueryTableSource) from).getSelect().getQuery();
                    if (queryBlockFromIsNull(visitor, subQuery)) {
                        return true;
                    }
                }
            }
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    @Override
    public SQLSelectQuery query() {
        if (lexer.token() == (Token.LPAREN)) {
            lexer.nextToken();

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

            return queryRest(select);
        }
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        SQLStatement stmt = stmtList.get(0);
        if (!(stmt instanceof SQLSelectStatement)) {
            return;
        }

        SQLSelectQuery query = ((SQLSelectStatement) stmt).getSelect().getQuery();
        if (query instanceof SQLSelectQueryBlock) {
            if (((SQLSelectQueryBlock) query).getFrom() == null) {
                LOG.error("invalid oracle validationQuery. " + validationQuery + ", may should be : " + validationQuery
                          + " FROM DUAL");
            }
View Full Code Here

        SQLStatement stmt = stmtList.get(0);
        if (!(stmt instanceof SQLSelectStatement)) {
            return;
        }

        SQLSelectQuery query = ((SQLSelectStatement) stmt).getSelect().getQuery();
        if (query instanceof SQLSelectQueryBlock) {
            if (((SQLSelectQueryBlock) query).getFrom() == null) {
                LOG.error("invalid db2 validationQuery. " + validationQuery + ", may should be : " + validationQuery
                          + " FROM SYSDUMMY");
            }
View Full Code Here

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