fishScript.com d
Home| Progetto| Web| Faq| Acronimi

Argomenti







PLSQL... Script: Cursore, open, fetch


A User Agent, like a web browser, uses HTTP to request a HTML document



In programming the danger of exploring the small details of coding is that you get obsessed with every line of code you write, thereby greatly reducing productivity.
In general, is not worth obsessing over code.
On the other hand you should code with deliberation and intent. Steven Feurstein Oracle Magazine July /August 2004

A User Agent, like a web browser, uses HTTP to request a HTML document

Shell scripting

Home >Shell scripting > Function connecting to oracle

Stampa  Stampa


The following is a base example of a shell script function that I use to connect to Oracle and execute sql statements.
Certainly there are various option to connect and get db results within a shell script, but I tend to adopt this combination of print [ sql code] | sqlplus -s [...] because it works fine on different Oracle db versions (8i, 10g).
This sample function checks if the schema owns/reads the object passed, if the object is not in all_objects you get the no rows selected. The some construct can be used to get results, execute a procedure, drop an object, etc. As showed in the second part, the function may be a good trick to verify database connection, in fact if the function does not return the table DUAL (or another table) accessible from a schema, it means there was not logon into the db.
#!/usr/bin/ksh
# file fun_chkobj
#tested on  HP-UX B.11.23 U ia64 
fun_chkobj() {
vdbschema=$1
vpass=$2
database=$3
obj=$4
voutput=`print "set heading off \n select table_name from all_tables where table_name ='$obj' ;"| sqlplus -s ${vdbschema}/$vpass@${database}`
echo $voutput
}


# calling the function
v=$(fun_chkobj "SALES" "PSWSALES" "CUSTOMER" "MYTABLE");

# printing function  result
echo $v

# executing the function using echo, this time there is not object
echo `fun_chkobj "ABPESDBO" "ABPESDBO123" "ACCAR2C1" "ANOTEXISTENTOBJECT"`



# implementing the function to verify connection parameters
chkConn=$(fun_chkobj "SYSTEM" "MANAGER" "DBCUSTOMER" "DUAL");
if [ "${chkConn}" != "DUAL" ]
then
echo " Cannot connect to db"
exit
fi





Tutorial
Executing a shell script  [Unix] 
Shell scripting passare parametri ad un programma [Shell scripting] 
Cheking mandatory parameters have been passed to shell file, comparing strings in if construct and some other basics warming up with shell scripting [Shell scripting] 
Estendere un logical volume e di un filesystem allocare pił storage da riga di comando su Unix Hp [HP UX 11i] 
Korn shell scripting If constructs AND, OR, &&, || syntax examples [Unix] 
Function connecting to oracle getting results, executing query, verify db connection [Shell scripting] 
Cheking parameters have been passed to shell file, comparing strings in if construct warming up with shell scripting [Shell scripting] 
awk command line tutorial and examples sintax, functions, conditional constructs, text file operations [Unix] 
How many processor and what kind of CPU extracting info from red hat system file /proc/cpuinfo [REDHAT] 
sed command example on fixing errors and adding and removing blank lines [Unix] 
Shell scripting eseguire controlli  [Shell scripting] 
Script
while do loop simple shell script [Shell scripting] 
if e else strutture condizionali [Shell scripting] 
Array valorizzazione e stampa [Shell scripting] 
Hide user input on screen parameter of read command [Shell scripting] 
Array in do while construct printing elements [Shell scripting] 
Shell script automating oracle data pump schema export automatically export and compress database schemas in single separated dump files [Shell scripting] 
Script per ricavare i nomi dei db (SID) dal file oratab  [Unix] 
Ciclo sul contenuto directory  [Shell scripting] 
If contruct check if a value is null or not [Unix] 
Shell script extract items and looping example: issue dba statment for each db listed in oratab [Unix] 
Passing parameters to shell script example sum of two numbers [Shell scripting] 
Export and compress dump on the fly script to reduce storage need while using exp and imp Oracle utilities [Unix] 
Pulire i file provenienti da ambieti dos/ windoes da caratteri sporchi dos2ux, dos2unix per eliminare i control M (^M) [Shell scripting] 
Script for archiving and compressing folder and file utility example [Shell scripting] 
How to get size or other file info in a shell script manipulating with cut or awk operative system commands output [Shell scripting] 
Comandi
Privilegi su file o cartella (lettura, scrittura, execuzione)  [Unix] 
Cancellazione di una directory rm o rmdir  [Unix] 
Cd: cambiare directory  [Unix] 
Copiare un file in un altra cartella  [Unix] 
hostname  [HP UX 11i] 
uname visaulizza informazioni sul sistema operativo e la versione [HP UX 11i] 
ipcs report stato dei processi [HP UX 11i] 
getconf ricavare se si ha a disposizione un Kernel da 32-bit o 64-bit  [HP UX 11i] 
swlist -l patch determinare il software e le patch installate nella piattaforma [HP UX 11i] 
who determinare gli utenti connessi [Unix] 
shutdown  [Unix] 
env visualizzazione (e modifica) variabili dell'ambiente  [Unix] 
w attivitą degli utenti [Unix] 
bdf visualizzare spazio disponibile [HP UX 11i] 
df visualizzazione spazio disponibile [Unix] 

signal Marco Magnani marcomagnani@fishscript.com



Cerca





Anger is creative, depression is useless.
Dyson, Freeman J.


Anger is creative, depression is useless.
Dyson, Freeman J.




Oracle... Definizioni: Schema


Shell scripting... Script: Debug shell program



fishScript.Com is accessible by Mobile access technology as mobile phones, Palm and Pocket PC .

Nicoleta e Marco Magnani tutorial, examples, courses, esempi, corsi, esercizi, appunti vari Dottoressa Nicoleta Dragu Formatrice Docente Insegnante Mediatrice Culturale Dott. Marco Magnani Universita La Sapienza Roma Master Computer Science Hunter College New York , Data Base Administrator DBA oracle System architect

Last modified: 2017-11-30 amministratore@fishscript.comNico and Marco Magnani Software Production
Home|About this Site © 2003-2008 www.fishScript.com ®
Dott. Marco Magnani Universita La Sapienza Roma Master Computer Science Hunter College New York Nicoleta Dragu Nicoleta Dragu Conduttrice di Laboratorio Formatrice Docente Insegnante Mediatrice Culturale Esperta in Mediazione Culturale Esperta in formazione Docente corsi informatici, Responsabile Segreteria Amministrativa, Responsabile Segretereria Organizzativa ed EsecutivaEsperienza internazionale Marco Magnani top DBA oracle, Marco Magnani DBA Certificato ORACLE 11g OCA, Marco Magnan Oracle Certified PL/SQL Developer, TOP LIST DBA Oracle, DBA per Telecom Italia, KenanFX Kenan FX ARBOR, TOP DBA