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Commit 79bde2d

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Add more C examples and update the makefile and README files (#447)
* Create simpleConnDemo.c Basic Connection and Query execution to Oracle Database * Update and rename drcp.c to drcpDemo.c Update the username and password to a generic string * Update makefile Make the makefile generic * Update simpleConnDemo.c Add the required setup and related blog details * Update simpleConnDemo.c Remove blog details. To be updated in README * Create sessionPoolingDemo Demo for OCI Session Pooling and Multithreading * Update README.md Add more details in the README.md file * Update README.md Minor change * Rename sessionPoolingDemo to sessionPoolingDemo.c Add .c extension in the file name * Update makefile Make the makefile more correct * Update makefile Add some comments
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‎C/README.md

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# Oracle Call Interface (OCI) Examples
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This directory contains samples that uses Oracle Call Interface's C libraries for accessing and working with Oracle Database.
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It also contains a sample makefile that can be used to compile these samples and create executables.
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List of files
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-------------
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| File Name | Description |
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|-----------|-------------|
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|[simpleConnDemo.c](./simpleConnDemo.c)| Shows a simple connection and query to Oracle Database using OCI. For explanation and the required setup, see the [blog](https://medium.com/oracledevs/oracle-call-interface-for-c-developers-simple-database-connection-and-query-58be8243a393).|
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|[sessionPoolingDemo.c](./sessionPoolingDemo.c)| Shows session pooling with Oracle Database using OCI Threads. For explanation and the required setup, see the [blog](https://medium.com/oracledevs/oracle-call-interface-for-c-developers-session-pooling-and-multithreading-87f56cec993a).|
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|[drcpDemo.c](./drcpDemo.c)| Shows a simple query with DRCP connection to Oracle Database using OCI|

‎C/drcp.c renamed to ‎C/drcpDemo.c

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/* Copyright (c) 2022, Oracle. All rights reserved. */
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/* Copyright (c) 2022, 2025, Oracle. All rights reserved. */
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/* drcp.c */
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/* drcpDemo.c */
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/* Oracle OCI Database Resident Connection Pooling (DRCP) Example */
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/* Christopher Jones, 2022 */
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#include <unistd.h>
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#include <oci.h>
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// const OraText userName[] = "SCOTT";
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// const OraText userPassword[] = "TIGER";
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// const OraText userName[] = "<username>";
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// const OraText userPassword[] = "<password>";
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/* Take the user credentials as inputs*/
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OraText userName[129];

‎C/makefile

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# Copyright (c) 2022, Oracle. All rights reserved.
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# Makefile for Oracle OCI Database Resident Connection Pooling (DRCP) Example
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# Copyright (c) 2022, 2025, Oracle. All rights reserved.
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# Makefile for Oracle Call Interface examples
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# Christopher Jones, 2022
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# Sharad Chandran R, 2025
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IC=$(HOME)/instantclient_19_11
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# Update the instant client path here
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IC=$(HOME)/instantclient_19_26
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OLIB=$(IC)
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OINC=$(IC)/sdk/include
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DEMOS=drcpDemo simpleConnDemo sessionPoolingDemo
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#OH=/u01/app/oracle/product/12.1.0/dbhome_1
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# Uncomment the following 3 lines if you are using an
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# Oracle Database home
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#OH=/u01/app/oracle/product/19.26.0/dbhome_1
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#OLIB=$(OH)/lib
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#OINC=$(OH)/rdbms/public
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drcp: clean
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$(CC) -Wall -Wextra -c -I$(OINC) drcp.c
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$(CC) -o drcp drcp.o -Wl,--rpath -Wl,$(OLIB) -L$(OLIB) -lclntsh
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.PHONY: all clean
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all: $(DEMOS)
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$(DEMOS): %: %.c
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$(CC) -Wall -Wextra -c -I$(OINC) $<
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$(CC) -o $@ $@.o -Wl,--rpath -Wl,$(OLIB) -L$(OLIB) -lclntsh
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clean:
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rm -f drcp.o drcp
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rm -f $(DEMOS)*.o

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