github/langchain
1
0
Fork 0
mirror of https://github.com/hwchase17/langchain.git synced 2025-06-12 18:06:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

updated oracleai_demo.ipynb (#22635)

Browse Source 
The outer try/except block handles connection errors, and the inner
try/except block handles SQL execution errors, providing detailed error
messages for both.
try:
    conn = oracledb.connect(user=username, password=password, dsn=dsn)
    print("Connection successful!")

    cursor = conn.cursor()
    try:
        cursor.execute(
            """
            begin
                -- Drop user
                begin
                    execute immediate 'drop user testuser cascade';
                exception
                    when others then
dbms_output.put_line('Error dropping user: ' || SQLERRM);
                end;

---------

Co-authored-by: Chester Curme <chester.curme@gmail.com>
This commit is contained in:
Satyam Kumar 2024-06-07 01:59:24 +05:30 committed by GitHub
parent 035a9c9609
commit 835926153b
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 38 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
cookbook/oracleai_demo.ipynb
View File

@ -86,8 +86,7 @@
"\n", "\n",
"import oracledb\n", "import oracledb\n",
"\n", "\n",
"# please update with your username, password, hostname and service_name\n", "# Update with your username, password, hostname, and service_name\n",
"# please make sure this user has sufficient privileges to perform all below\n",
"username = \"\"\n", "username = \"\"\n",
"password = \"\"\n", "password = \"\"\n",
"dsn = \"\"\n", "dsn = \"\"\n",
@ -97,40 +96,45 @@
" print(\"Connection successful!\")\n", " print(\"Connection successful!\")\n",
"\n", "\n",
" cursor = conn.cursor()\n", " cursor = conn.cursor()\n",
" try:\n",
" cursor.execute(\n", " cursor.execute(\n",
" \"\"\"\n", " \"\"\"\n",
" begin\n", " begin\n",
" -- drop user\n", " -- Drop user\n",
" begin\n", " begin\n",
" execute immediate 'drop user testuser cascade';\n", " execute immediate 'drop user testuser cascade';\n",
" exception\n", " exception\n",
" when others then\n", " when others then\n",
" dbms_output.put_line('Error setting up user.');\n", " dbms_output.put_line('Error dropping user: ' || SQLERRM);\n",
" end;\n", " end;\n",
" \n",
" -- Create user and grant privileges\n",
" execute immediate 'create user testuser identified by testuser';\n", " execute immediate 'create user testuser identified by testuser';\n",
" execute immediate 'grant connect, unlimited tablespace, create credential, create procedure, create any index to testuser';\n", " execute immediate 'grant connect, unlimited tablespace, create credential, create procedure, create any index to testuser';\n",
" execute immediate 'create or replace directory DEMO_PY_DIR as ''/scratch/hroy/view_storage/hroy_devstorage/demo/orachain''';\n", " execute immediate 'create or replace directory DEMO_PY_DIR as ''/scratch/hroy/view_storage/hroy_devstorage/demo/orachain''';\n",
" execute immediate 'grant read, write on directory DEMO_PY_DIR to public';\n", " execute immediate 'grant read, write on directory DEMO_PY_DIR to public';\n",
" execute immediate 'grant create mining model to testuser';\n", " execute immediate 'grant create mining model to testuser';\n",
"\n", " \n",
" -- network access\n", " -- Network access\n",
" begin\n", " begin\n",
" DBMS_NETWORK_ACL_ADMIN.APPEND_HOST_ACE(\n", " DBMS_NETWORK_ACL_ADMIN.APPEND_HOST_ACE(\n",
" host => '*',\n", " host => '*',\n",
" ace => xs$ace_type(privilege_list => xs$name_list('connect'),\n", " ace => xs$ace_type(privilege_list => xs$name_list('connect'),\n",
" principal_name => 'testuser',\n", " principal_name => 'testuser',\n",
" principal_type => xs_acl.ptype_db));\n", " principal_type => xs_acl.ptype_db)\n",
" );\n",
" end;\n", " end;\n",
" end;\n", " end;\n",
" \"\"\"\n", " \"\"\"\n",
" )\n", " )\n",
" print(\"User setup done!\")\n", " print(\"User setup done!\")\n",
" except Exception as e:\n",
" print(f\"User setup failed with error: {e}\")\n",
" finally:\n",
" cursor.close()\n", " cursor.close()\n",
" conn.close()\n", " conn.close()\n",
"except Exception as e:\n", "except Exception as e:\n",
" print(\"User setup failed!\")\n", " print(f\"Connection failed with error: {e}\")\n",
" cursor.close()\n",
" conn.close()\n",
" sys.exit(1)" " sys.exit(1)"
] ]
}, },