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-rw-r--r--ext/oci8/README13
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diff --git a/ext/oci8/README b/ext/oci8/README
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@@ -1,6 +1,7 @@
Installing OCI8
---------------
+0. Overview
1. Common requirements.
2. Installing as shared extension.
3. Installing as statically compiled extension.
@@ -8,6 +9,18 @@ Installing OCI8
5. Testing OCI8
6. DRCP and FAN Support
+
+0. Overview
+-----------
+
+The OCI8 extension allows you to access Oracle databases. It can be
+built using Oracle 9.2, 10.2 or 11.1 client libraries, and allows
+Oracle's standard cross-version connectivity. It can be used with PHP
+versions 4.3.9 to 5.3.
+
+The OCI8 extension is not related to or used by PDO_OCI, the PHP Data
+Objects (PDO) extension for Oracle.
+
1. Common requirements
----------------------