/****************************************************************************
** (c) Copyright IBM Corp. 2007 All rights reserved.
**
** The following sample of source code ("Sample") is owned by International
** Business Machines Corporation or one of its subsidiaries ("IBM") and is
** copyrighted and licensed, not sold. You may use, copy, modify, and
** distribute the Sample in any form without payment to IBM, for the purpose of
** assisting you in the development of your applications.
**
** The Sample code is provided to you on an "AS IS" basis, without warranty of
** any kind. IBM HEREBY EXPRESSLY DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR
** IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do
** not allow for the exclusion or limitation of implied warranties, so the above
** limitations or exclusions may not apply to you. IBM shall not be liable for
** any damages you suffer as a result of using, copying, modifying or
** distributing the Sample, even if IBM has been advised of the possibility of
** such damages.
*****************************************************************************
**
** SOURCE FILE NAME: getdbcfgparams.c
**
** SAMPLE: How to get DB CFG Parameters
** The sample should be run using the following steps:
**
** 1. Create the "sample" database using db2sampl command
**
** 2. Compile the program with the following command:
** bldapp getdbcfgparams
**
** 3. Run this sample with the following command:
** getdbcfgparams <configuration parameter names>
**
** CLI FUNCTIONS USED:
** SQLAllocHandle -- Allocate Handle
** SQLBindCol -- Bind a Column to an Application Variable or
** LOB locator
** SQLBindParameter -- Bind a Parameter Marker to a Buffer or
** LOB locator
** SQLExecDirect -- Execute a Statement Directly
** SQLFetch -- Fetch Next Row
** SQLFreeHandle -- Free Handle Resources
** SQLSetConnectAttr -- Set Connection Attributes
**
**
*****************************************************************************
**
** For more information on the sample programs, see the README file.
**
** For information on developing CLI applications, see the CLI Guide
** and Reference.
**
** For information on using SQL statements, see the SQL Reference.
**
** For the latest information on programming, building, and running DB2
** applications, visit the DB2 Information Center:
** http://publib.boulder.ibm.com/infocenter/db2luw/v9r7/index.jsp
****************************************************************************/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sqlcli1.h>
#include "utilcli.h" /* Header file for CLI sample code */
int main(int argc, char *argv[])
{
SQLRETURN cliRC = SQL_SUCCESS;
int rc = 0, i;
SQLHANDLE henv; /* environment handle */
SQLHANDLE hdbc; /* connection handle */
SQLHANDLE hstmt; /* statement handle */
char stmt[300]; /* SQL SELECT statement to be executed */
char dbAlias[SQL_MAX_DSN_LENGTH + 1];
char user[MAX_UID_LENGTH + 1];
char pswd[MAX_PWD_LENGTH + 1];
struct
{
SQLINTEGER ind;
SQLCHAR val[32];
}
name; /* variable to be bound to the NAME column */
struct
{
SQLINTEGER ind;
SQLCHAR val[1024];
}
value; /* variable to be bound to the VALUE column */
struct
{
SQLINTEGER ind;
SQLCHAR val[1024];
}
deferred_value; /* variable to be bound to the DEFERRED_VALUE column */
struct
{
SQLINTEGER ind;
SQLCHAR val[128];
}
datatype; /* variable to be bound to the DATATYPE column */
struct
{
SQLINTEGER ind;
SQLSMALLINT val;
}
dbpartitionnum; /* variable to be bound to the DBPARTITIONNUM column */
/* initializing the database name */
strcpy(dbAlias, "sample");
strcpy(user, "");
strcpy(pswd, "");
if (argc < 2 )
{
printf("\n Usage : getdbcfgparams <configuration parameter names>\n");
rc = -1;
return rc;
}
printf("\nTHIS SAMPLE SHOWS HOW TO GET DB CFG PARAMETERS ");
printf("USING SYSIBMADM.DBCFG\n");
/* initialize the CLI application by calling a helper
utility function defined in utilcli.c */
rc = CLIAppInit(dbAlias,
user,
pswd,
&henv,
&hdbc,
(SQLPOINTER)SQL_AUTOCOMMIT_ON);
if (rc != 0)
{
return rc;
}
/* SELECT NAME, VALUE, DEFERRED_VALUE, DATATYPE, DBPARTITIONNUM
FROM SYSIBMADM.DBCFG WHERE NAME IN ( LIST) */
strcpy(stmt, "SELECT NAME, VALUE, DEFERRED_VALUE, DATATYPE,");
strcat(stmt, " DBPARTITIONNUM FROM SYSIBMADM.DBCFG WHERE NAME IN (");
i = 1;
strcat(stmt, " '");
strcat(stmt, argv[i]);
strcat(stmt, "' ");
for (i = 2; i < argc; i++)
{
strcat(stmt, ", '");
strcat(stmt, argv[i]);
strcat(stmt, "' ");
}
strcat(stmt, " )");
printf("\n-----------------------------------------------------------\n");
printf("\n%s\n", stmt);
printf("\n-----------------------------------------------------------");
/* allocate a statement handle */
cliRC = SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmt);
DBC_HANDLE_CHECK(hdbc, cliRC);
/* execute the statement */
cliRC = SQLExecDirect(hstmt, (SQLCHAR *) stmt, SQL_NTS);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* bind parameter name to variable */
cliRC = SQLBindCol(hstmt, 1, SQL_C_CHAR, name.val, 32, &name.ind);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* bind parameter value to variable */
cliRC = SQLBindCol(hstmt, 2, SQL_C_CHAR, value.val, 1024, &value.ind);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* bind deferred value to variable */
cliRC = SQLBindCol(hstmt,
3,
SQL_C_CHAR,
deferred_value.val,
1024,
&deferred_value.ind);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* bind data type to variable */
cliRC = SQLBindCol(hstmt,
4,
SQL_C_CHAR,
datatype.val,
128,
&datatype.ind);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* bind dbpartitionnum to variable */
cliRC = SQLBindCol(hstmt,
5,
SQL_C_SHORT,
&dbpartitionnum.val,
0,
&dbpartitionnum.ind);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* fetch each row and display */
cliRC = SQLFetch(hstmt);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
if (cliRC == SQL_NO_DATA_FOUND)
{
printf("\n Data not found.\n");
}
while (cliRC != SQL_NO_DATA_FOUND)
{
/* display each row */
printf("\n");
printf("Parameter Name = %s\n", name.val);
printf("Parameter Value = %s\n", value.val);
printf("Parameter Deferred Value = %s\n", deferred_value.val);
printf("Parameter Data Type = %s\n", datatype.val);
printf("Database Partition Number = %d\n", dbpartitionnum.val);
/* fetch next row */
cliRC = SQLFetch(hstmt);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
}
/* free the statement handle */
cliRC = SQLFreeHandle(SQL_HANDLE_STMT, hstmt);
STMT_HANDLE_CHECK(hstmt, hdbc, cliRC);
/* terminate the CLI application by calling a helper
utility function defined in utilcli.c */
rc = CLIAppTerm(&henv, &hdbc, dbAlias);
return rc;
} /* end of main */