Added a simple Database::exec() methode to execute simple (multiple) SQL statement

- This can be used when no results are returned, in Data Manipulation Language SQL statements (like CREATE, INSERT, UPDATE, DROP)

src/SQLiteC++/Database.cpp

@@ -67,5 +67,23 @@ void Database::unregisterStatement(Statement& aStatement) // throw(SQLite::Excep
     }
 }
 
+// Shorcut to execute one or multiple SQL statements without results.
+int Database::exec(const char* apQueries) // throw(SQLite::Exception);
+{
+	  int ret = sqlite3_exec(mpSQLite, apQueries, NULL, NULL, NULL);
+    check(ret);
+
+    // Return the number of changes made by thoses SQL statements
+    return sqlite3_changes(mpSQLite);
+}
+
+// Check if aRet equal SQLITE_OK, else throw a SQLite::Exception with the SQLite error message
+void Database::check(const int aRet) const // throw(SQLite::Exception)
+{
+    if (SQLITE_OK != aRet)
+    {
+        throw SQLite::Exception(sqlite3_errmsg(mpSQLite));
+    }
+}
 
 };  // namespace SQLite

src/SQLiteC++/Database.h

@@ -68,6 +68,17 @@ public:
      */
     void unregisterStatement(Statement& aStatement); // throw(SQLite::Exception);
 
+    /**
+     * @brief Shorcut to execute one or multiple statements without results.
+     *
+     *  This is usefull for Data Manipulation Language SQL statements like CREATE, INSERT, UPDATE, DROP
+     *
+     * @see also Statement class for handling queries with resultats
+     *
+     * @param[in] apQueries  one or multiple UTF-8 encoded, semicolon-separate SQL statements
+     */
+    int exec(const char* apQueries); // throw(SQLite::Exception);
+
     /**
      * @brief Filename used to open the database
      */
@@ -90,6 +101,11 @@ private:
     Database(const Database&);
     Database& operator=(const Database&);
 
+    /**
+     * @brief Check if aRet equal SQLITE_OK, else throw a SQLite::Exception with the SQLite error message
+     */
+    void check(const int aRet) const; // throw(SQLite::Exception);
+
 private:
     sqlite3*        mpSQLite;       //!< Pointer to SQLite Database Connection Handle
     std::string     mFilename;      //!< UTF-8 filename used to open the database

src/SQLiteC++/Statement.cpp

@@ -147,10 +147,7 @@ bool Statement::isColumnNull(const int aIndex) const // throw(SQLite::Exception)
     return (SQLITE_NULL == sqlite3_column_type(mpStmt, aIndex));
 }
 
-
-/**
- * @brief Check if aRet equal SQLITE_OK, else throw a SQLite::Exception with the SQLite error message
- */
+// @brief Check if aRet equal SQLITE_OK, else throw a SQLite::Exception with the SQLite error message
 void Statement::check(const int aRet) const // throw(SQLite::Exception)
 {
     if (SQLITE_OK != aRet)
@@ -159,6 +156,7 @@ void Statement::check(const int aRet) const // throw(SQLite::Exception)
     }
 }
 
+
 ////////////////////////////////////////////////////////////////////////////////
 // Implementation of the inner class Statement::Column
 //

src/example1/main.cpp

@@ -55,7 +55,7 @@ private:
 
 int main (void)
 {
-    // Basic example (1/2) :
+    // Basic example (1/3) :
     try
     {
         // Open a database file
@@ -63,7 +63,7 @@ int main (void)
         std::cout << "SQLite database file '" << db.getFilename().c_str() << "' opened successfully\n";
 
         // Compile a SQL query, containing one parameter (index 1)
-        SQLite::Statement   query(db, "SELECT * FROM test WHERE size > ?");
+        SQLite::Statement   query(db, "SELECT * FROM test WHERE size > ?;SELECT id FROM test");
         std::cout << "SQLite statement '" << query.getQuery().c_str() << "' compiled (" << query.getColumnCount () << " columns in the result)\n";
         // Bind the integer value 6 to the first parameter of the SQL query
         query.bind(1, 6);
@@ -98,7 +98,7 @@ int main (void)
     }
 
     ////////////////////////////////////////////////////////////////////////////
-    // Object Oriented Basic example (2/2) :
+    // Object Oriented Basic example (2/3) :
     try
     {
         // Open the database and compile the query
@@ -114,5 +114,29 @@ int main (void)
         std::cout << "SQLite exception: " << e.what() << std::endl;
     }
 
+    ////////////////////////////////////////////////////////////////////////////
+    // Simple batch queries example (3/3) :
+    try
+    {
+        // Open a database file
+        SQLite::Database    db("test.db3", SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE);
+        std::cout << "SQLite database file '" << db.getFilename().c_str() << "' opened successfully\n";
+
+        db.exec("DROP TABLE IF EXISTS test");
+
+        db.exec("CREATE TABLE test (id INTEGER PRIMARY KEY, value TEXT)");
+
+        int nb = db.exec("INSERT INTO test VALUES (NULL, \"test\")");
+        std::cout << "INSERT INTO test VALUES (NULL, \"test\")\", returned " << nb << std::endl; 
+        
+        db.exec("DROP TABLE test");
+    }
+    catch (std::exception& e)
+    {
+        std::cout << "SQLite exception: " << e.what() << std::endl;
+    }
+    std::remove("test.db3");
+
+
     return 0;
 }