README.md

AlmedadDbTools

small tool to select, insert update and delete from SQL databases

dbConncector Methods - Constructors

• Constructor : public dbConncector(String connStr)

  Takes an String SonnectionString to init the object to use later.

    String ConnectionStrong = "";
    dbConncector db = new dbConncector(ConnectionStrong);

• Constructor : public dbConncector(SqlConnection con)

  Takes an System.Data.SqlClint.SqlConnection to init the object to use later.

    sqlConnection con = new sqlConnection();
    dbConncector db = new dbConncector(con);

dbConncector Methods

• public DataTable getAllFrom(String tableName)

  Takes an String for the table to get all rows and return a System.Data.DataTable object.

    dbConncector db = new dbConncector(con);
    DataTable result = db.getAllFrom("tableName");

• public DataTable exec(String queiry)

  Takes an String for the queiry and return a System.Data.DataTable object.

    dbConncector db = new dbConncector(con);
    DataTable result = db.exec("select * from tableName");

• public DataTable getAllFrom(String PeocName, List filds)

  Takes an String for the table name, and a list of Field object contains the pharametrs with values to get only specific rows and return a System.Data.DataTable object.

    // Select from student table the student they live in libya.
    dbConncector db = new dbConncector(con);
    Field v1 = new Field("student_location" , "Libya");
    List<Field> values = new List<Field>();
    values.add(v1);
    DataTable result = db.getAllFrom("student_table" , values);

• public int getResultFromSp(String PeocName, List filds) (Used in stored procedures that insert, update or delete only )

  Takes an String for the stored procedures name, and a list of Field object contains the pharametrs with values, it's retirn an int as a number of changes in database

    // insert new student
    dbConncector db = new dbConncector(con);
    Field v1 = new Field("student_name" , "Islam");
    Field v2 = new Field("student_location" , "Libya");
    List<Field> values = new List<Field>();
    values.add(v1);
    values.add(v2);
    int result = db.getAllFrom("student_table" , values);

class Field use

Before you pass the Field object see this example.

  dbConncector fb = new dbConncector();
  String taegetTable = "sp_login";
  List<Field> fields = new List<Field>();
  fields.Add(new Field("email", "[email protected]")); // pharameter in sp_login  stored procedures
  fields.Add(new Field("password", "123456")); //  pharameter in sp_login  stored procedures
  DataTable tb = fb.getAllFromSp(taegetTable, fields); // 

Full Example

tableName : student_info

student_id	student_name	student_location
1	islam	Libay
2	mdammed	Libay
3	ahmed	Egypt

  
  //create String variable for connectionString
  String _cs = "";
  
  //Create an object of dbConncector
  dbConncector db = new dbConncector(_cs);
  
  //get all student
  DataTable result = db.getAllFrom("student_info");
  // the object result has the result
    
  //get only students from libya
  Field v1 = new Field("student_location" , "Libya");
  List<Field> values = new List<Field>();
  values.add(v1);
  DataTable result = db.getAllFrom("student_info" , values);
  // the object result has the result
  
  //insert useings tored procedures sp_insert_into_student_info
  Field v1 = new Field("student_name" , "mostafa");
  Field v2 = new Field("student_location" , "Libya");
  List<Field> values = new List<Field>();
  values.add(v1);
  values.add(v2);
  int result = db.getResultFromSp("sp_insert_into_student_info" , values);
  // result must = 1