How to construct an abstract syntax tree - Stack Overflow
2009年11月12日 · To construct the parse tree from a grammar and an expression, you would first have to convert your grammar into working code. Typically, you would split the work into a …
sql server - Building AST from T-SQL - Stack Overflow
2018年3月19日 · The Microsoft.SqlServer.TransactSql.ScriptDom namespace provides Microsoft SQL Server-specific Parser and Script Generator support. Example: A Program to Find …
Is there any parsers to convert SQL to tree (AST)? [closed]
2015年12月9日 · I have SQL expression for Postgres. And i want to get Abstract syntax tree to manipulate this from Java program. I have found sqlite-parser (find it google, please, I have …
c# - How can I parse T-SQL to AST using the classes in Microsoft ...
2015年12月5日 · I was excited you found the AST at all! Working with it directly requires use of dynamic variables to access the .Child collection of the objects in the internal …
How do I access the AST (abstract syntax tree) for a PL/SQL stored ...
How to reconstruct the PL/SQL source from DIANA. How to write a PL/SQL un-wrapper. Limitations of a PL/SQL API based un-wrapper. Limitations of the PL/SQL API itself. How to …
sql - AST vs Postfix Algorithm - Stack Overflow
2014年4月10日 · Most of these schemes start with an AST, convert that into some kind of graph representing the program computations, apply chosen "optimizations" [in the case of DB …
Where is the official document of T-SQL abstract syntax tree?
2015年12月17日 · You can find the SQL Abstract Syntax Trees Vocabulary. Abstract syntax trees allow to build structured representations of code for any language with a grammar: AST nodes …
sql - Guide on how to process AST formatted as JSON like …
2013年10月9日 · Most of the literature I have found considering walking AST's usually assumes I have some sort of class hierarchy describing some sort of variation of the visitor pattern to …
Transforming Spark SQL AST with extraOptimizations
2016年10月25日 · If using the optimisations isn't the way to go, can anybody suggest an alternative? All I really want to do is parse the input SQL statement, transform it, and pass the …
Parsing SQL with Python - Stack Overflow
I want to create a SQL interface on top of a non-relational data store. Non-relational data store, but it makes sense to access the data in a relational manner. I am looking into using ANTLR to …