rename a mysql table from vb.net using textbox

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i am making a simple program to create a mysql table from vb.net and renaming it by user choice.
i got success in creating the table it is quite simple but how to rename a table from textbox tortured me a lot.
here's the code to create a table

VB

Try
 cnn.Open()
 Dim query As String
 query = "CREATE TABLE best.new (id INT NOT NULL,  name VARCHAR(45) NULL, date DATETIME NULL,   PRIMARY KEY (id));"

 cmd = New MySqlCommand(query, cnn)
 reader = cmd.ExecuteReader
 MessageBox.Show("table created")
 cnn.Close()

i tried to rename it using this code but no success....! achieved yet
i tried few more but it gives error
i want to rename it from the "id" given by the user

VB

Dim rename As String
 Rename = ("RENAME TABLE new To" TextBox1.Text)
 cmd = New MySqlCommand(Rename, cnn)
 reader = cmd.ExecuteReader
 MessageBox.Show("renamed")
 cnn.Close()

please help me to find it out

Posted 7-Jun-14 0:39am

the challanger

Updated 8-Jun-14 11:29am

Blutfaust

v3

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Nirav Prabtani 7-Jun-14 6:43am

what have you tried for that??

the challanger 7-Jun-14 6:51am

the above code i mentioned is the last one, i also tried to change the file name from directory but it also gives errors

3 solutions

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**Manoj K Bhoir** · Answer 1 · 2014-06-08T04:38:00

Solution 4

Try this One (Added Space after To and added &):

VB

Dim rename As String
Rename = ("RENAME TABLE new To " & TextBox1.Text)
cmd = New MySqlCommand(Rename, cnn)
reader = cmd.ExecuteReader
MessageBox.Show("renamed")
cnn.Close()

I hope this will help you. :)

Posted 8-Jun-14 4:38am

Manoj K Bhoir

Comments

the challanger 12-Jun-14 4:44am

i tried your code and it gives an exception
you have an error in your sql syntax; check the manual that corresponds to your mysql server version for the right syntax to use near 'new to 1' at line 1

the challanger 12-Jun-14 4:49am

cnn = New MySqlConnection
cnn.ConnectionString = ("server=localhost;userid=root;password=********;database=best")

Dim reader As MySqlDataReader
Try
cnn.Open()
Dim rename As String
rename = ("RENAME TABLE new To " & textbox1.text)
cmd = New MySqlCommand(rename, cnn)
reader = cmd.ExecuteReader
MessageBox.Show("renamed")
cnn.Close()
Catch ex As Exception
MessageBox.Show(ex.Message)

End Try

OriginalGriff · Answer 2 · 2014-06-07T00:48:00

Solution 1

Add a space...

VB

Rename = ("RENAME TABLE new To" TextBox1.Text)

Becomes

VB

Rename = ("RENAME TABLE new To " TextBox1.Text)

But you had better be damn careful.
You leave your whole DB wide open to SQL Injection with this.

Posted 7-Jun-14 0:48am

OriginalGriff

Comments

the challanger 7-Jun-14 7:14am

i fixed it but a new error occured
System.IndexOutOfRangeException was unhandled
Message=Index was outside the bounds of the array.

the challanger 8-Jun-14 9:31am

last night i tried this one

Try
cnn.Open()
Dim rename As String
rename = ("RENAME TABLE lotta To "(TextBox1.Text))
cmd = New MySqlCommand(rename, cnn)
reader = cmd.ExecuteReader
MessageBox.Show(" created & renamed ")
cnn.Close()
Catch ex As MySqlException
MessageBox.Show(ex.Message)

End Try

but it gives exception

System.IndexOutOfRangeException was unhandled
Message=Index was outside the bounds of the array.
Source=newapplication
InnerException:

DamithSL · Answer 3 · 2014-06-07T01:34:00

Solution 2

try with

VB

Rename = "RENAME TABLE best.new TO " & TextBox1.Text

Posted 7-Jun-14 1:34am

DamithSL

Updated 8-Jun-14 4:55am

v2