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Family Day update

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Ingy döt Net 2020-02-17 23:21:07 -08:00
parent aac6731f2c
commit 9ad63ea473
2442 changed files with 39761 additions and 8255 deletions
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27
Task/Parametrized-SQL-statement/Java/parametrized-sql-statement.java
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@ -8,21 +8,28 @@ public class DBDemo{
private String username;
private String password;
Connection conn = DriverManager.getConnection(protocol + dbName, username, password);
PreparedStatement query;
public int setUpAndExecPS(){
query = conn.prepareStatement(
try {
Connection conn = DriverManager.getConnection(protocol + dbName, username, password);
query = conn.prepareStatement(
"UPDATE players SET name = ?, score = ?, active = ? WHERE jerseyNum = ?");
query.setString(1, "Smith, Steve");//automatically sanitizes and adds quotes
query.setInt(2, 42);
query.setBoolean(3, true);
query.setInt(4, 99);
//there are similar methods for other SQL types in PerparedStatement
query.setString(1, "Smith, Steve");//automatically sanitizes and adds quotes
query.setInt(2, 42);
query.setBoolean(3, true);
query.setInt(4, 99);
//there are similar methods for other SQL types in PerparedStatement
return query.executeUpdate();//returns the number of rows changed
//PreparedStatement.executeQuery() will return a java.sql.ResultSet,
//execute() will simply return a boolean saying whether it succeeded or not
return query.executeUpdate();//returns the number of rows changed
//PreparedStatement.executeQuery() will return a java.sql.ResultSet,
//execute() will simply return a boolean saying whether it succeeded or not
} catch (Exception e) {
e.printStackTrace();
}
return 0;
}
}