odbc-describe-column ( statement columnNumber -- column )

Vocabulary

odbc

Inputs

statement	an ODBC statement handle
columnNumber	a column number starting from one

Outputs

column

a column object

Word description

Retrieves column information for the given column number from the statement. The column number must be one or greater. The <column> object returned provides data type, name, etc.

See also

odbc-init, odbc-connect, odbc-disconnect, odbc-prepare, odbc-free-statement, odbc-execute, odbc-next-row, odbc-number-of-columns, odbc-describe-column, odbc-get-field, odbc-get-row-fields, odbc-get-all-rows, odbc-query

Definition

USING: alien.c-types alien.data alien.strings io.encodings.utf8
odbc.private ;

IN: odbc

:: odbc-describe-column ( statement columnNumber -- column )
    1024 :> bufferLen bufferLen alien-space-str :> columnName 0
    short <ref> :> nameLengthPtr 0 short <ref>
    :> dataTypePtr 0 uint <ref> :> columnSizePtr 0 short <ref>
    :> decimalDigitsPtr 0 short <ref>
    :> nullablePtr statement columnNumber columnName bufferLen
    nameLengthPtr dataTypePtr columnSizePtr decimalDigitsPtr
    nullablePtr SQLDescribeCol "SQLDescribeCol" check-odbc
    nullablePtr short deref decimalDigitsPtr short deref
    columnSizePtr uint deref dataTypePtr short deref
    convert-sql-type columnName utf8 alien>string
    columnNumber <column> ;