IBM Informix Developer's Handbook - IBM Redbooks

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At this stage, the Client SDK installation is complete. If the Informix database server is located on a different system, you might need to set up the connection information and modify the sqlhosts file, using the details of your Informix Server. Installing Client SDK on a Windows system Installation on a Windows system for the Client SDK is similar to UNIX the installation except that the Windows system installation has the option to install IBM Data Server Driver Package. If you select the option to install these drivers, refer to “Installing the IBM Data Server Driver package” on page 44 for Installation details. Configuration utility On Windows systems, the Client SDK comes bundled with the setnet32.exe utility for configuring the Client SDK. The Client SDK has default values set and is ready to use unless you want to change the protocol, server information, or any environment variable under which the client application runs. The setnet32.exe utility sets environment variables and network parameters that IBM Informix products use at run time. The environment variables and connectivity parameters are stored in the Windows system registry and are valid for every Informix Client product that you install, except Informix JDBC Driver. The setnet32.exe utility has the following tabs: ► The Environment tab allows you to set environment variables. ► The Server Information tab allows you to set database server network information. ► The Host Information tab allows you to set your host computer and login information. ► The About Setnet32 tab provides information about the setnet32.exe utility. For more information about these tabs, refer to the Client SDK installation PDF file that comes with Client SDK. Special consideration for 32- and 64-bit products Beginning with version 3.50.FC4, you can install both 32-bit and 64-bit Client SDK on the same Windows system. Before installing the version 3.50.FC4 product, you must uninstall the existing version 3.50.FC3 or earlier Client SDK from your system. 42 IBM Informix Developer’s Handbook
To uninstall your existing products, use one of the following methods: ► Use the Add/Remove program. ► Run the setup.exe program from the installed product media. When the Maintenance Menu displays, select Remove. You must install the new 32-bit and 64-bit products in separate directories. The 32-bit Client SDK installs in the following directory by default: C:\Program Files (x86)\IBM\Informix\Client-SDK The 64-bit Client SDK installs in the following directory by default: C:\Program Files\IBM\Informix\Client-SDK The 64-bit product installation adds a suffix to the Program group folder and the Add/Remove entry. This suffix provides an easy identification between the 32-bit (no suffix) and 64-bit (suffix) product installations. For more information, refer to the release notes. 2.2.3 Setting up IBM Data Server drivers Several types of IBM Data Server Clients and Drivers are available. The following IBM Data Server Clients are available: ► IBM Data Server Client, contains all the APIs and tools that are needed for development against DB2 and Informix databases, including tools for remote administration. ► IBM Data Server Runtime Client, contains all the APIs but only the minimum number of utilities for setup and configure the development environment. ► IBM Data Server Driver Package, contains only the APIs and drivers without any additional tools. The client products contain the APIs and drivers plus additional tools that are designed for remote database administration and configuration of the client environment. The following IBM Data Server Drivers are available: ► IBM Data Server Driver for JDBC and SQLJ ► IBM Data Server Driver for ODBC and CLI ► IBM Data Server Driver for .NET ► IBM Data Server open source drivers such as PHP or Ruby Chapter 2. Setting up an Informix development environment 43
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IBM Informix Developer’s Handbook
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Note: Before using this information
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3.2 Setup and configuration . . . .
Page 8 and 9: 8.3.1 Connecting to the database .
Page 10 and 11: 12.5.2 Compiling the wrapper code .
Page 12 and 13: Trademarks IBM, the IBM logo, and i
Page 14 and 15: Krishna Doddi (also known as Prasad
Page 16 and 17: Comments welcome Your comments are
Page 18 and 19: 1.1 Server options There are a numb
Page 20 and 21: This edition offers the following a
Page 22 and 23: either an HDR secondary or RSS seco
Page 24 and 25: There are three edition options for
Page 26 and 27: functions. An application calls the
Page 28 and 29: The IBM Data Server Driver for JDBC
Page 30 and 31: OLEDB Microsoft OLE DB is a specifi
Page 32 and 33: The DataBlade Developers Kit provid
Page 34 and 35: 1.3.1 Architecture overview An unde
Page 36 and 37: Physical and logical logging As eac
Page 38 and 39: Before you select an API or library
Page 40 and 41: Hidden, behind-the- scenes tasking
Page 42 and 43: 2.1 Server setup In this section, w
Page 44 and 45: A typical sqlhosts file contains th
Page 46 and 47: Figure 2-1 shows the Server Informa
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Page 50 and 51: 2.2 Client setup ► Edit the Infor
Page 52 and 53: Figure 2-4 illustrates the options
Page 54 and 55: 2. Prepare the environment. You nee
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Page 60 and 61: You can download some of these comp
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Page 64 and 65: 2. On the Software License Agreemen
Page 66 and 67: 5. Verify the installation selectio
Page 68 and 69: 3. Extract the IBM Data Server Driv
Page 70 and 71: For a silent installation on both W
Page 72 and 73: Configuring the JDBC driver To use
Page 74 and 75: 3.1 ODBC and Informix ODBC is a sof
Page 76 and 77: ► IBM Informix ODBC Driver (64-bi
Page 78 and 79: You can set optional configuration
Page 80 and 81: Parameter Description Insert Cursor
Page 82 and 83: Table 3-5 shows the ODBC libraries
Page 84 and 85: Keyword Description DriverODBCVer S
Page 86 and 87: Keyword Description DESCRIBEDECIMAL
Page 88 and 89: If there is no database alias defin
Page 90 and 91: Example 3-5 shows a simple db2cli.i
Page 92 and 93: The application sends SQL request t
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Page 96 and 97: SQLSMALLINT DecimalDigits, /* ibSca
Page 98 and 99: If your application requires only S
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Page 102 and 103: } SQLCHAR sname[15+1]; SQLLEN lcode
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Page 106 and 107: SQLAllocHandle (SQL_HANDLE_ENV, SQL
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SQLAllocHandle (SQL_HANDLE_ENV, SQL
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94 IBM Informix Developer’s Handb
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contains the data or special attrib
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Function Description ifx_lo_specset
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SQLSMALLINT lospec_size; SQLINTEGER
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4. Call ifx_lo_open() to open the s
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SQLBindParameter (hstmt, 1, SQL_PAR
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} SQLFreeHandle (SQL_HANDLE_ENV, he
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SQLCHAR*insertStmt = (SQLCHAR *) "I
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Accessing a complex data type Examp
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C:\work> 3.3.5 Error handling Ludwi
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C:\work>connect_error demo_on;UID=w
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We create a function called CheckDi
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Figure 3-14 shows the Tracing tab.
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Example 3-36 demonstrates how to se
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DRDADEBUG All IBM Data Server drive
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124 IBM Informix Developer’s Hand
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4.1 Informix ESQL/C Informix ESQL/C
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Example 4-1 shows a simple sqlhosts
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Compiling ESQL/C programs The esql
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Platform Environment variable Linux
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Example 4-3 shows a statement that
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:fname[i], :lname[i], :company[i],
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The SELECT statement shown in Examp
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EXEC SQL fetch ex_cursor into :n1,:
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Table 4-3 lists a few ESQL/C data t
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the sbspace in the server before yo
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Example 4-10 shows the ESQL/C comma
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Example 4-12 shows the output of Ex
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} EXEC SQL END DECLARE SECTION; 150
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C->S (16) Time: 2010-07-06 20:21:58
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5.1 JDBC drivers for an Informix da
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5.1.2 IBM Data Server Driver for JD
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Example 5-4 shows the CLASSPATH env
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Example 5-6 shows the compile line
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programmer uses Java data types to
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Example 5-9 shows the syntax of the
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" Connected to Informix Dynamic Ser
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5.4.2 Manipulating data In this sec
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conn.close(); } catch ( Exception e
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Example 5-15 demonstrates how to di
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conn = DriverManager.getConnection(
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con.setAutoCommit(false); Statement
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System.out.format("Last row: \t%d,"
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PreparedStatement pstmt=conn.prepar
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System.err.println(e); } } } Exampl
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Issuer: CN=bedfont.uk.ibm.com, O=ib
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5.6.1 Class not found errors The fo
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5.7.2 IBM Data Server Driver for JD
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6.1 Hibernate for Java This section
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A Hibernate application includes th
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6.2.2 Configuration File Descriptio
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Example 6-3 shows a hibernate.cfg.x
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name="State" table="States">
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Example 6-6 shows the CLASSPATH var
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informix password org.hibernate
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Example 6-11 shows basic Java code
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The only difference between the loa
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1, AZ, Arizona 2, CA, California C:
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Example 6-19 shows the output of th
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private Long id; private String cod
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7.1 IBM Informix OLE DB Provider In
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through COM. You can use it to test
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7.3.1 Supported interfaces An OLE D
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7.3.3 Type mapping Keyword Descript
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7.3.4 Cursors Informix OLE DB Provi
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Example 7-3 demonstrates how to con
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Connect to the Database Server CHEC
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#define CHECK(hr) if (((HRESULT)(hr
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} 232 IBM Informix Developer’s Ha
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if(lDataLength > 0) { // Call GetCh
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_bstr_t bstrPassWord = "password";
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Provider with some of the available
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cx.connectionstring = "Data Source=
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California 0.08250 c:\work> 7.4.3 S
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The user ID for the Informix databa
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happen that the 32-bit provider is
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7.5.2 Tracing Failure when handling
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A44: 53C Exit Object Address: 0x032
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8.1 Informix and .NET data provider
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Both providers have the same assemb
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Example 8-3 shows how to compile an
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Attribute Description Default Exclu
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The majority of the connection stri
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Data Server Provider for .NET type
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Example 8-7 shows the output of Exa
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Table 8-9 lists the methods that th
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Method Description IfxMonthSpan Get
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} } int drows=0; 272 IBM Informix D
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Example 8-16 shows the output of Ex
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Method Description Int64 Seek(offse
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... 280 IBM Informix Developer’s
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IfxConnection conn; IfxClob vclob;
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Property Type Description Year Int3
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Hour : 8 Minute: 20 C:\work>c Arith
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Method Description Compare(IfxDec1,
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C:\work>decimal Value Sales Tax : 0
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Ceiling Sales Tax : 1.0 Negative Sa
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Visual Studio Add-In provides tools
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9.1 Informix and PHP extensions The
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- Console mode Enter one of the fol
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9.2.4 Verifying connectivity You ca
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► Secure Although PHP is open sou
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*--- persistent connect trusted use
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In a web application, the input dat
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Dynamic SQL statements Dynamic SQL
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$stmt->bindValue(':p9', $_POST["pho
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*--- Verification ---*/ $stmt1=$dbc
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$row=$stmt1->fetch(PDO::FETCH_ASSOC
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} /*--- Get the BLOB from the datab
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In Example 9-17 on page 316, the da
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Function Description db2_bind_param
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The IBM_DB2 extension This PHP exte
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9.3.5 Exception handling Error hand
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The error information that is gener
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9.3.6 Troubleshooting printf("NonCr
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10.1 An overview of UDRs and databa
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10.1.2 About UDRs specific examples
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Invoking a UDR You can invoke a UDR
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10.2 Developing UDRs To develop a U
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One variable in, one result out For
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10.2.2 UDRs in Java 5 1005 6 1006 7
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Note: The paths for .jar files that
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We use the following procedure to c
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For our example, JVPCLASSPATH is se
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10.2.3 UDRs in C and break somethin
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3. Set the bld file permissions as
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4. Create the function in dbaccess.
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Installing the DataBlade Any DataBl
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To connect to a database, run one o
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IBM Informix DataBlade module name
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interface, called BladeSmith, allow
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11.1 A brief overview of Ruby on Ra
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The following drivers allow Ruby to
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Data types The Ruby Informix driver
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03/07/2010 17:30 1,088 LICENSE 03/0
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The Rails Adapter can be installed
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server: demo_on username: informix
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Using Ruby Informix driver In this
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If the SQL statement returns only o
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Example 11-17 shows how to select a
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Example 11-19 shows a simple Ruby s
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# create a prepare object stmt = IB
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11.4 Using the Rails Adapter with R
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For more information, refer to: htt
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Figure 11-1 shows the Listing items
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11.5.1 Creating the Rails applicati
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11.5.4 Migrating the model Ruby on
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11.5.5 Starting the Rails web serve
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12.1 Basic concepts In this section
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A web service can perform the follo
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Example 12-1 shows a typical shell
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12.3.2 The w4gl utility For additio
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Parameter Description ws_func Funct
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In the remaining sections, we descr
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Example 12-8 shows the APP SERVER f
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Add details about the web service Y
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Source file information Finally, yo
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The Generate operation creates the
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process, running each individual st
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The compressed file is left in the
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Figure 12-3 shows the WSDL informat
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| Target Directory [/work/publish ]
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After this process is complete, the
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while using one of the I4GL web ser
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Keeping the wrapper C files in the
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12.6.2 Tracing A developer can use
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13.1 Concurrency and locking 13.1.1
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13.1.2 Lock duration The length of
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If a table is not created with row
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How the database server manages byt
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13.2.1 Deadlocks reader can read a
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ow that has not been committed (thi
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should check with the DBA to determ
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Note: For information about writing
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The amount of memory storage per lo
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The DIRECTIVES parameter The DIRECT
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13.5 Working with your database adm
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► Metadata updates affect logging
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Guidelines for setting VPCLASS: ►
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The lock level is determined by the
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area of specific interest. The func
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B.1 Distributed transactions A tran
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* Compile with: * on UNIX systems:
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} { printf("XA_PREPARE failed with
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When using distributed transactions
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Online resources ► IBM Informix D
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cast function 332 cast support func
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IfxDecimal public method 287 ifxdot
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jvpjavavm 341 jvplog 347 jvplogfile
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sql_longvarbinary 80, 96 sql_longva
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IBM Informix Developer’s Handbook
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