From a300758261083a2a796d9b2e6560308247c20900 Mon Sep 17 00:00:00 2001
From: Hammy <sgoudham@gmail.com>
Date: Mon, 15 Feb 2021 01:10:27 +0000
Subject: [PATCH] Experimenting with SQLite

---
 Personal/src/sqlite/Main.java            |  14 +++++++
 Personal/src/sqlite/PlayersDB.java       |  51 +++++++++++++++++++++++
 Personal/src/sqlite/SQLTransactions.java |  31 ++++++++++++++
 Personal/src/sqlite/database/players.db  | Bin 0 -> 12288 bytes
 4 files changed, 96 insertions(+)
 create mode 100644 Personal/src/sqlite/Main.java
 create mode 100644 Personal/src/sqlite/PlayersDB.java
 create mode 100644 Personal/src/sqlite/SQLTransactions.java
 create mode 100644 Personal/src/sqlite/database/players.db

diff --git a/Personal/src/sqlite/Main.java b/Personal/src/sqlite/Main.java
new file mode 100644
index 0000000..67dca40
--- /dev/null
+++ b/Personal/src/sqlite/Main.java
@@ -0,0 +1,14 @@
+package sqlite;
+
+import java.sql.SQLException;
+
+public class Main {
+    public static void main(String[] args) throws SQLException {
+        PlayersDB playersDatabase = new PlayersDB();
+
+        playersDatabase.getAllPlayers();
+        playersDatabase.insertPlayer("Jizan#21290", "2450", "3350", "3400", "280");
+        playersDatabase.getAllPlayers();
+
+    }
+}
diff --git a/Personal/src/sqlite/PlayersDB.java b/Personal/src/sqlite/PlayersDB.java
new file mode 100644
index 0000000..3a01853
--- /dev/null
+++ b/Personal/src/sqlite/PlayersDB.java
@@ -0,0 +1,51 @@
+package sqlite;
+
+import java.sql.*;
+
+import static sqlite.SQLTransactions.*;
+
+public class PlayersDB {
+
+    private Connection connection;
+    private final String currentDatabase = "players.db";
+
+    public PlayersDB() throws SQLException {
+        this.connect().createStatement().execute(CREATE_PLAYERS_TABLE);
+        this.connect().createStatement().executeUpdate(POPULATE_PLAYERS_TABLE);
+    }
+
+    public void getAllPlayers() throws SQLException {
+        ResultSet resultSet = connect().createStatement().executeQuery(GET_ALL_PLAYERS);
+
+        while (resultSet.next()) {
+            System.out.println(
+                    "\nPlayer Name: " + resultSet.getString("battlenet")
+                            + "\nLevel: " + resultSet.getString("level")
+                            + "\nDamage SR: " + resultSet.getString("damageSR")
+                            + "\nTank SR: " + resultSet.getString("tankSR")
+                            + "\nSupport SR: " + resultSet.getString("supportSR")
+            );
+        }
+    }
+
+    public void insertPlayer(String battlenet, String damageSR, String tankSR, String supportSR, String level) throws SQLException {
+        PreparedStatement preparedStatement = connect().prepareStatement(INSERT_PLAYER);
+
+        preparedStatement.setString(1, battlenet);
+        preparedStatement.setString(2, damageSR);
+        preparedStatement.setString(3, tankSR);
+        preparedStatement.setString(4, supportSR);
+        preparedStatement.setString(5, level);
+
+        preparedStatement.executeUpdate();
+
+    }
+
+    private Connection connect() throws SQLException {
+        if (connection == null) {
+            connection = DriverManager.getConnection(BASE_JDBC_URL + currentDatabase);
+        }
+        return connection;
+    }
+
+}
diff --git a/Personal/src/sqlite/SQLTransactions.java b/Personal/src/sqlite/SQLTransactions.java
new file mode 100644
index 0000000..acb502e
--- /dev/null
+++ b/Personal/src/sqlite/SQLTransactions.java
@@ -0,0 +1,31 @@
+package sqlite;
+
+public class SQLTransactions {
+
+    static final String BASE_JDBC_URL = "jdbc:sqlite:./Personal/src/sqlite/database/";
+
+    static final String CREATE_PLAYERS_TABLE = """
+                                                CREATE TABLE IF NOT EXISTS players 
+                                                (
+                                                    battlenet text PRIMARY KEY,
+                                                    damageSR text NOT NULL,
+                                                    tankSR text NOT NULL,
+                                                    supportSR text NOT NULL,
+                                                    level text NOT NULL
+                                                );
+                                                """;
+
+    static final String POPULATE_PLAYERS_TABLE = """
+                                   BEGIN TRANSACTION;
+                                   INSERT INTO players VALUES ('Hammy#21436', '3000', '2650', '3520', '400') ON CONFLICT DO NOTHING;
+                                   INSERT INTO players VALUES ('Mootbox#2537', '3050', '3500', '4000', '500') ON CONFLICT DO NOTHING;
+                                   INSERT INTO players VALUES ('Carlos#24356', '2250', '1800', '1940', '98') ON CONFLICT DO NOTHING;
+                                   INSERT INTO players VALUES ('SmolMio#2844', '3499', '2679', '3000', '428') ON CONFLICT DO NOTHING;
+                                   INSERT INTO players VALUES ('Jizan#21290', '2450', '3350', '3400', '280') ON CONFLICT DO NOTHING;
+                                   COMMIT;
+                                   """;
+
+    static final String GET_ALL_PLAYERS = "SELECT * FROM players;";
+
+    static final String INSERT_PLAYER = "INSERT INTO players VALUES(?, ?, ?, ?, ?) ON CONFLICT DO NOTHING;";
+}
diff --git a/Personal/src/sqlite/database/players.db b/Personal/src/sqlite/database/players.db
new file mode 100644
index 0000000000000000000000000000000000000000..75a86bef7fd2e6492db37ae5c6a4c2c28fc7502a
GIT binary patch
literal 12288
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z^pZ60j8a#GzVG=_BpN%B$2s>!$cl@UhkJ4wr!!ahUeFLC;PsI6dgSvc+_aZPI%%qh
z>D(28x8rg1j=&T!Ma;mg<w;)3Bsn)H@x4Y?UNo{Sk!4lP_mt=*p+D&#dP#rN@3;6s
zq(A@y5P$##AOHafKmY;|fB*y_aEAiacCFm4g0pUKS@}DJQnr!5F(_sm`3nO3f$iSU
HT?hOFEL)L@

literal 0
HcmV?d00001