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Patryk Czarnik
javab_20230617
Commits
abcfbbfb
Commit
abcfbbfb
authored
Jun 17, 2023
by
Patryk Czarnik
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Pierwszy odczyt z bazy PostgreSQL
parent
7e3705a9
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Odczyt1.java
PC21-JavaUzupelnienia/src/bazy/na_zywo/Odczyt1.java
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PC21-JavaUzupelnienia/src/bazy/na_zywo/Odczyt1.java
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View file @
abcfbbfb
package
bazy
.
na_zywo
;
import
java.sql.*
;
public
class
Odczyt1
{
// JDBC = Java Database Connectivity
public
static
void
main
(
String
[]
args
)
{
try
{
Connection
c
=
DriverManager
.
getConnection
(
"jdbc:postgresql://localhost/postgres"
,
"postgres"
,
"abc123"
);
System
.
out
.
println
(
"Mam połączenie: "
+
c
);
PreparedStatement
stmt
=
c
.
prepareStatement
(
"SELECT * FROM osoby"
);
ResultSet
rs
=
stmt
.
executeQuery
();
while
(
rs
.
next
())
{
System
.
out
.
println
(
rs
.
getString
(
2
)
+
" "
+
rs
.
getString
(
3
));
}
c
.
close
();
}
catch
(
SQLException
e
)
{
throw
new
RuntimeException
(
e
);
}
}
}
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