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Edge HMI

DBCursorRowCount

  • Last UpdatedAug 07, 2026
  • 2 minute read

DBCursorRowCount gets the total number of rows in a SQL result set.

Function

Group

Execution

String Exp.

Windows

Windows Embedded

IoT View

Thin Clients

Mobile Access

DBCursorRowCount

Database/ERP

Synchronous

Yes

Supported

Supported

Supported (see Notes below)

Supported

Supported

Syntax

DBCursorRowCount(numCur, "optStrErrorTag")

numCur

The cursor handle for the result set, which was returned by DBCursorOpen or DBCursorOpenSQL.

optStrErrorTag

The name of a project tag that will receive detailed error messages, if errors occur during project run time.

Note: If this parameter is enclosed in quotes, the string literal will be used. Otherwise, the value of the tag/expression will be used.

This parameter is optional.

Return value

In case of success, this function returns the number of rows in the SQL result set.

In the case of error, this function returns one of the following possible values:

Value

Error Message

-1

DBERROR_DATABASE_ERROR

-2

DBERROR_CONNECTION_OPEN_ERROR

-3

DBERROR_CURSOREMPTY_FAILURE

-4

DBERROR_CURSORMOVE_FAILURE

-5

DBERROR_CURSORFETCH_FAILURE

-6

DBERROR_CURSORNOTOPEN_FAILURE

-7

DBERROR_CURSOR_EOF

-8

DBERROR_CURSOR_BOF

-9

DBERROR_INVALID_COMMAND

-10

DBERROR_INVALID_CURSOR

-100

DBERROR_NOT_ENOUGH_PARAMETERS

-101

DBERROR_INVALID_PARAMETER_DB

-102

DBERROR_INVALID_PARAMETER_TABLE

-103

DBERROR_INVALID_PARAMETER_COLLIST

-104

DBERROR_INVALID_PARAMETER_CONDITION

-105

DBERROR_INVALID_PARAMETER_ORDER

-106

DBERROR_INVALID_PARAMETER_SQL

-107

DBERROR_INVALID_PARAMETER_CURSOR

-108

DBERROR_INVALID_PARAMETER_VALUELIST

-109

DBERROR_INVALID_PARAMETER_TAGLIST

-110

DBERROR_INVALID_PARAMETER_ERRORTAG

-111

DBERROR_INVALID_PARAMETER_MAXROWS

-112

DBERROR_INVALID_PARAMETER_SQL_QUERY

-113

DBERROR_INVALID_PARAMETER_ROW

-114

DBERROR_INVALID_PARAMETER_COLUMNNUMBER

-115

DBERROR_INVALID_PARAMETER_COLUMNINFO

-199

DBERROR_TOO_MANY_PARAMETERS

-200

DBERROR_TCP_COMM_FAILURE

-201

DBERROR_EXCEEDED_OPEN_BUFFER

-202

DBERROR_EXECUTING_ONLY_CLEANUP_COMMANDS

Notes

Database/ERP functions emulate Structured Query Language (SQL) database operations. Before you use these functions, familiarize yourself with how SQL statements are formed and executed.

This function recognizes only 16000 rows of a table at one time. If a selected section of table has more than 16000 rows, only the first 16000 rows of the selection will be accessible to any built-in language Database/ERP functions. Exceeding this limit may return an EOF error even if the end of the file has not been reached.

When this function is used in a project running on IoT View, it supports only single-byte Unicode characters (up to U+007F). Multi-byte Unicode characters are not supported at this time.

You can use the Database Gateway (StADOSvr) to directly monitor database connections for leaks and errors. For more information, see Database Interface.

See also DBCursorColumnCount.

Examples

DBCursorRowCount(nCursor)

DBCursorRowCount(nCursor, "TagError")

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