Technical Reference Manual - InduSoft

Appendix: Built-in Scripting Language
numTypeInfo
The number of the column about which you want to get information. Remember that a result set
may include only some of the columns in the original database table.
The type of information you want to get about the column:
Value
Description
0 Column name
1 Column data type
optStrErrorTag
The name of a String tag that will receive detailed error messages, if errors occur during
runtime.
Note: The tag name must be enclosed in quotes, as shown in the syntax
diagram, or else the project will try to get the value of the named tag.
This is an optional parameter.
Returned value
In case of error, returns a negative number. Otherwise, returns 0.
Examples
As used in a Math worksheet:
Tag Name
nErrorCode
Expression
DBCursorColumnInfo( nCursor, 2, 0 ) // Gets the column name of the second column in the result set.
DBCursorCurrentRow
Returns the row number of the current row (i.e., the cursor position) in a SQL result set.
Function Group Execution Windows Embedded Thin Client
DBCursorCurrentRow Database/ERP Synchronous Supported Supported Supported
Note: This feature emulates SQL (Structured Query Language) database operations. You should be
familiar with how SQL commands are formed and executed before you use this feature.
Syntax
DBCursorCurrentRow( numCur, "optStrErrorTag" )
numCur
The cursor handle of the result set. The cursor handle is returned by DBCursorOpen or
DBCursorOpenSQL.
optStrErrorTag
The name of a String tag that will receive detailed error messages, if errors occur during
runtime.
Note: The tag name must be enclosed in quotes, as shown in the syntax
diagram, or else the project will try to get the value of the named tag.
Page 740
InduSoft Web Studio