Method and

src/main/java/com/sql/parse/statement/impl/druid/Select.java:158–167

@title: and @desc "AND"符号

(SQLExpr where)

     * @desc "AND"符号
     */
    public Select and(SQLExpr where) {
        SQLSelectQueryBlock queryBlock = select.getSelect().getQueryBlock();
        SQLExpr oldWhere = queryBlock.getWhere();
        if (oldWhere == null) {
            throw BaseException.errorCode(SqlParseConstant.CODE_005);
        } else {
            queryBlock.setWhere(ExpressionBuilder.and(oldWhere, where));
        }
        return this;
    }

    public Select and(String expr) {
        SQLExpr expression = ExpressionBuilder.parse(expr);