Module SQLToken

This module defines the Token needed to scan an embedded SQL Statement. In Addition it defines a ToString-method for all token. The supported datatypes, functions, operator etc. are based on the CDBI-Interface.

Summary of exported operations:

tokentoString
                  ::  Token -> String

Exported datatypes:

Token

Constructors:

Constant :: ConstVal -> Token
Ident :: String -> Token
EmbedExp :: String -> Token
KW_Select :: Token
KW_From :: Token
KW_Where :: Token
KW_Order :: Token
KW_Group :: Token
KW_By :: Token
KW_Having :: Token
KW_Insert :: Token
KW_Into :: Token
KW_Values :: Token
KW_Update :: Token
KW_Set :: Token
KW_Delete :: Token
KW_Transaction :: Token
KW_Inner :: Token
KW_Cross :: Token
KW_Join :: Token
KW_On :: Token
KW_Satisfies :: Token
KW_As :: Token
KW_Distinct :: Token
KW_All :: Token
KW_Case :: Token
KW_When :: Token
KW_Then :: Token
KW_Else :: Token
KW_End :: Token
KW_Asc :: Token
KW_Desc :: Token
KW_Limit :: Token
KW_Exists :: Token
KW_Not :: Token
KW_Commit :: Token
KW_Rollback :: Token
KW_Begin :: Token
KW_Table :: Token
Fun :: Func -> Token
BinOp :: BinOperator -> Token
LogOp :: LogOperator -> Token
SetOp :: SetOperator -> Token
Is :: Token
Between :: Token
In :: Token
LParen :: Token
RParen :: Token
Comma :: Token
Semi :: Token
Stop :: Token
Asterix :: Token
Unexpected :: Char -> Token

ConstVal

Constructors:

NumInt :: Int -> ConstVal
NumFloat :: Float -> ConstVal
Boolean :: Bool -> ConstVal
Date :: CalendarTime -> ConstVal
VarStr :: String -> ConstVal
VarChar :: Char -> ConstVal
Null :: ConstVal

Func

Constructors:

Sum :: Func
Avg :: Func
Min :: Func
Max :: Func
Count :: Func

BinOperator

Constructors:

Lth :: BinOperator
Gth :: BinOperator
Lte :: BinOperator
Gte :: BinOperator
Equal :: BinOperator
Uneq :: BinOperator
Like :: BinOperator

LogOperator

Constructors:

And :: LogOperator
Or :: LogOperator

SetOperator

Constructors:

Union :: SetOperator
Intersect :: SetOperator
Except :: SetOperator

Exported operations:

tokentoString :: Token -> String