XSQLVAR Field Descriptions

The following table describes the fields of the XSQLVAR structure:

Field definition	Description
`short sqltype`	Indicates the SQL data type of parameters or select-list items; set by InterBase during `isc_dsql_describe()`, `isc_dsql_describe_bind()`, or `isc_dsql_prepare()`.
`short sqlscale`	Provides scale, specified as a negative number, for exact numeric data types (`DECIMAL` and `NUMERIC`); set by InterBase during `isc_dsql_describe()`, `isc_dsql_describe_bind()`, or `isc_dsql_prepare()`.
`short sqlprecision`	Provides precision for the exact numeric data types (`DECIMAL` and `NUMERIC`); set by InterBase during `isc_dsql_describe()`, `isc_dsql_describe_bind()`, or `isc_dsql_prepare()`.
`short sqlsubtype`	Specifies the subtype for Blob data; set by InterBase during `isc_dsql_describe()`, `isc_dsql_describe_bind()`, or `isc_dsql_prepare()`.
`short sqllen`	Indicates the maximum size, in bytes, of data in the `sqldata` field; set by InterBase during `isc_dsql_describe()`, `isc_dsql_describe_bind()`, or `isc_dsql_prepare()`.
`char *sqldata`	For input descriptors, specifies either the address of a select-list item or a parameter; set by the application. For output descriptors, contains a value for a select-list item; set by InterBase.
`short *sqlind`	On input, specifies the address of an indicator variable; set by an application; on output, specifies the address of column indicator value for a select-list item following a `FETCH`. A value of `>= 0` indicates that the column is not `NULL`; a value of `< 0` indicates the column is `NULL`; set by InterBase. For additional information about how to interpret this value for InterBase Change Views, please refer to Change Views API Support.
`short sqlname_length`	Specifies the length, in bytes, of the data in field, `sqlname`; set by InterBase during `isc_dsql_prepare()` or `isc_dsql_describe()`.
`char sqlname`[`METADATALENGTH`]	Contains the name of the column. Not `NULL` (\0) terminated; set by InterBase during `isc_dsql_prepare()` or `isc_dsql_describe()`.
`short relname_length`	Specifies the length, in bytes, of the data in field, `relname`; set by InterBase during `isc_dsql_prepare()` or `isc_dsql_describe()`.
`char relname`[`METADATALENGTH`]	Contains the name of the table; not NULL (\0) terminated, set by InterBase during `isc_dsql_prepare()` or `isc_dsql_describe()`.
`short ownname_length`	Specifies the length, in bytes, of the data in field, `ownname`; set by InterBase during `isc_dsql_prepare()` or `isc_dsql_describe()`.
`char ownname`[`METADATALENGTH`]	Contains the name of the table owner; not NULL (\0) terminated, set by InterBase during `isc_dsql_prepare()` or `isc_dsql_describe()`.
`short aliasname_length`	Specifies the length, in bytes, of the data in field, `aliasname`; set by InterBase during `isc_dsql_prepare()` or `isc_dsql_describe()`.
`char aliasname`[`METADATALENGTH`]	Contains the alias name of the column. If no alias exists, contains the column name; not NULL (\0) terminated, set by InterBase during `isc_dsql_prepare()` or `isc_dsql_describe()`.

Advance To:

Input Descriptors