Databases
StackOverflow2013
Postsdbo
POParameterized SQL in FROM clause
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POParameterized SQL in FROM clause
    primarykey
    data
    text
    <p>Using <code>OleDbCommand</code>. I can add SQL parameters and thus keep the query safe from SQL-injection, but is there a way to do this within the <code>FROM</code> cluase.See below</p> <p><strong>THIS WORKS</strong></p> <pre><code>query = "Select * From Company Where @param = 1"; OleDbCommand Command = new OleDbCommand(query, sqlConnStr); DataTable Table = new DataTable(); DataSet dataSet = new DataSet(); Table = null; //Add Parameters Command.Parameters.AddWithValue("param", "ID"); Command.ExecuteNonQuery(); adapter.SelectCommand = Command; adapter.Fill(dataSet); Table = dataSet.Tables[0]; </code></pre> <p>it returns a nice table with the wonderful row where id = 1</p> <p><strong>BUT</strong></p> <p>I am looking for something like this, note the FROM CLAUSE</p> <pre><code>query = "Select * From @tableName Where @param = 1"; OleDbCommand Command = new OleDbCommand(query, sqlConnStr); DataTable Table = new DataTable(); DataSet dataSet = new DataSet(); Table = null; //Add Parameters Command.Parameters.AddWithValue("param", "ID"); Command.Parameters.AddWithValue("tableName", "Company"); Command.ExecuteNonQuery(); adapter.SelectCommand = Command; adapter.Fill(dataSet); Table = dataSet.Tables[0]; </code></pre> <p>The DBMS keeps returning with <code>"Error in From clause"</code></p> <p>PS everything is spelled correctly - I triple checked</p> <hr> <p><em><strong>To All - Thanks but Alas i shall stick to just Parameterized SQL. I don't like <code>Dynamic SQL</code> One BIT</em></strong></p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USAiden Strydom
    1. USAiden Strydom
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POParameterized SQL in FROM clause
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POParameterized SQL in FROM clause
      1. This table or related slice is empty.
      1. VTUpMod
    1. COAccording to Microsoft OleDbCommand does not even support named Paramters http://msdn.microsoft.com/en-us/library/system.data.oledb.oledbcommand.parameters.aspx yet the top code excerpt works fine
      singulars
      1. POParameterized SQL in FROM clause
      1. USAiden Strydom
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload