free barcode generator source code in vb.net CLI error-handling routines in Software

Printer Code 128 Code Set A in Software CLI error-handling routines

CLI error-handling routines
Code 128 Reader In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Draw Code 128 In None
Using Barcode creator for Software Control to generate, create Code128 image in Software applications.
attributes control overall operational options. Connection options apply to a particular connection created by the SQLConnect() call but may vary from one connection to another. Statement attributes apply to the processing of an individual statement, identified by a CLI statement handle. A set of CLI calls, shown in Figure 19-22, is used by an application program to control attributes. The get calls (SQLGetEnvAttr(), SQLGetConnectAttr(),
Read Code 128B In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
Painting ANSI/AIM Code 128 In C#
Using Barcode printer for Visual Studio .NET Control to generate, create Code128 image in .NET applications.
19:
Generate Code 128C In .NET Framework
Using Barcode printer for ASP.NET Control to generate, create Code 128B image in ASP.NET applications.
Print Code128 In VS .NET
Using Barcode generator for Visual Studio .NET Control to generate, create Code128 image in .NET framework applications.
SQL APIs
USS Code 128 Encoder In VB.NET
Using Barcode generator for .NET framework Control to generate, create Code128 image in VS .NET applications.
EAN 128 Maker In None
Using Barcode drawer for Software Control to generate, create UCC.EAN - 128 image in Software applications.
and SQLGetStmtAttr()) obtain current attribute values. The set calls (SQLSetEnvAttr(), SQLSetConnectAttr(), and SQLSetStmtAttr()) modify the current attribute values. In all of the calls, the particular attribute being processed is indicated by a code value. Although the CLI standard provides this elaborate attribute structure, it actually specifies relatively few attributes. The single environment attribute specified is NULL TERMINATION; it controls null-terminated strings. The single connection attribute specified controls whether the CLI automatically populates a parameter descriptor when a statement is prepared or executed. Statement-level attributes control the scrollability and sensitivity of cursors. Perhaps the most important of the CLI-specified attributes are the handles of the four CLI descriptors that may be associated with a statement (two parameter descriptors and two row descriptors). The calls in Figure 19-22 are used to obtain and set these descriptor handles when using descriptor-based statement processing. The ODBC API, on which the SQL/CLI standard was originally based, includes many more attributes. For example, ODBC connection attributes can be used to specify a read-only connection, to enable asynchronous statement processing, to specify the timeout for a connection request, and so on. ODBC environment attributes control automatic translation of ODBC calls from earlier versions of the ODBC standard. ODBC statement attributes control transaction isolation levels, specify whether a cursor is scrollable, and limit the number of rows of query results that might be generated by a runaway query.
Barcode Creation In None
Using Barcode creator for Software Control to generate, create barcode image in Software applications.
Encode Code 3 Of 9 In None
Using Barcode drawer for Software Control to generate, create Code 39 image in Software applications.
CLI Information Calls
Data Matrix ECC200 Generator In None
Using Barcode generation for Software Control to generate, create Data Matrix 2d barcode image in Software applications.
Code-128 Creation In None
Using Barcode printer for Software Control to generate, create Code 128C image in Software applications.
The CLI includes three specific calls that can be used to obtain information about the particular CLI implementation. In general, these calls will not be used by an application program written for a specific purpose. They are needed by general-purpose programs (such as a query or report writing program) that need to determine the specific characteristics of the CLI they are using. The calls are shown in Figure 19-23. The SQLGetFunctions() call is used to determine whether a specific implementation supports a particular CLI function call. It is called with a function code value corresponding to one of the CLI functions, and returns a parameter indicating whether the function is supported. The SQLGetInfo() call is used to obtain much more detailed information about a CLI implementation, such as the maximum lengths of table and user names, whether the DBMS supports outer joins or transactions, and whether SQL identifiers are case-sensitive. The SQLGetTypeInfo() call is used to obtain information about a particular supported data type or about all types supported via the CLI interface. The call actually behaves as if it were a query against a system catalog of data type information. It produces a set of query results rows, each row containing information about one specific supported type. The supplied information indicates the name of the type, its size, whether it is nullable, whether it is searchable, and so on.
GS1 - 12 Printer In None
Using Barcode maker for Software Control to generate, create UPC - E1 image in Software applications.
Scan Code-128 In Visual C#.NET
Using Barcode scanner for .NET framework Control to read, scan read, scan image in Visual Studio .NET applications.
PROGRAMMING WITH SQL
Data Matrix ECC200 Recognizer In VB.NET
Using Barcode reader for .NET framework Control to read, scan read, scan image in VS .NET applications.
UCC - 12 Reader In VB.NET
Using Barcode decoder for Visual Studio .NET Control to read, scan read, scan image in VS .NET applications.
SQL: The Complete Reference
2D Barcode Maker In Java
Using Barcode creation for Java Control to generate, create Matrix 2D Barcode image in Java applications.
Barcode Generator In None
Using Barcode generation for Word Control to generate, create barcode image in Microsoft Word applications.
/* Obtain the value of a SQL-environment attribute */ short SQLGetEnvAttr( long envHdl, /* IN: environment handle */ long attrCode, /* IN: integer attribute code */ void *rtnVal, /* OUT: return value */ long bufLen, /* IN: length of rtnVal buffer */ long *strLen) /* OUT: length of actual data */ /* Set the value of a SQL-environment attribute */ short SQLSetEnvAttr( long envHdl, /* IN: environment handle */ long attrCode, /* IN: integer attribute code */ void *attrVal, /* IN: new attribute value */ long *strLen) /* IN: length of data */ /* Obtain the value of a SQL-connection attribute */ short SQLGetConnectAttr( long connHdl, /* IN: connection handle */ long attrCode, /* IN: integer attribute code */ void *rtnVal, /* OUT: return value */ long bufLen, /* IN: length of rtnVal buffer */ long *strLen) /* OUT: length of actual data */ /* Set the value of a SQL-connection short SQLSetConnectAttr( long connHdl, /* IN: long attrCode, /* IN: void *attrVal, /* IN: long *strLen) /* IN: attribute */ connection handle */ integer attribute code */ new attribute value */ length of data */
EAN / UCC - 14 Printer In VS .NET
Using Barcode maker for Reporting Service Control to generate, create UCC.EAN - 128 image in Reporting Service applications.
Drawing Barcode In VB.NET
Using Barcode printer for Visual Studio .NET Control to generate, create bar code image in .NET applications.
/* Obtain the value of a SQL-statement attribute */ short SQLGetStmtAttr( long stmtHdl, /* IN: statement handle */ long attrCode, /* IN: integer attribute code */ void *rtnVal, /* OUT: return value */ long bufLen, /* IN: length of rtnVal buffer */ long *strLen) /* OUT: length of actual data */ /* Set the value of a SQL-statement attribute */ short SQLSetStmtAttr( long stmtHdl, /* IN: statement handle */ long attrCode, /* IN: integer attribute code */ void *attrVal, /* IN: new attribute value */ long *strLen) /* IN: length of data */
Figure 19-22.
Copyright © OnBarcode.com . All rights reserved.