Método abierto ADO
❮ Referencia completa de objetos de registro
El método Open abre un objeto Record existente o crea un nuevo archivo o directorio.
Sintaxis
Open(source,actconn,mode,createopt,opt,username,psword)
| Parameter |
Description |
| source |
Optional. The source parameter may be one of the following:
- An absolute url
- A relative url
- An open Recordset
- Another Record object
- A Command object
- An SQL SELECT statement
- A table name
|
| actconn |
Optional. A connection string or a Connection object
|
| mode |
Optional. A ConnectModeEnum
value, that indicates the access mode of the Record object. Default is adModeUnknown
|
| createopt |
Optional. A RecordCreateOptionsEnum value, that
indicates whether an existing file/directory should be opened, or a new file/directory should be created.
Default is adFailIfNotExists. This parameter will be ignored if the source parameter
is not a URL
|
| opt |
Optional. One or more RecordOpenOptionsEnum
values, that specifies the options for opening the Record.
Default is adOpenRecordUnspecified
|
| username |
Optional. A user ID that authorizes access to source
|
| psword |
Optional. A password that verifies the username
|
Ejemplo
Example 1: source as the URL of a folder:
set rec = Server.CreateObject("ADODB.record")
rec.Open("https://www.w3schools.com/asp/")
Example 2: source as a relative URL in a Connection object:
set conn=Server.CreateObject("ADODB.Connection")
set rec = Server.CreateObject("ADODB.record")
conn.Open "URL=https://www.w3schools.com/asp/"
rec.Open("test.doc", conn)
Example 3: source as a row in a Recordset object:
set rs = Server.CreateObject("ADODB.recordset")
set rec = Server.CreateObject("ADODB.record")
rs.Open "test.doc", "URL=https://www.w3schools.com/asp/",,,adCmdTableDirect
rs.MoveLast()
rec.Open(rs)
Valores de ConnectModeEnum
| Constant |
Value |
Description |
| adModeUnknown |
0 |
Default. Permissions have not been set or cannot be
determined |
| adModeRead |
1 |
Read-only |
| adModeWrite |
2 |
Write-only |
| adModeReadWrite |
3 |
Read/write |
| adModeShareDenyRead |
4 |
Prevents others from opening a connection with read
permissions |
| adModeShareDenyWrite |
8 |
Prevents others from opening a connection with write
permissions |
| adModeShareExclusive |
12 |
Prevents others from opening a connection |
| adModeShareDenyNone |
16 |
Allows others to open a connection with any permissions |
| adModeRecursive |
0x400000 |
Used with adModeShareDenyNone, adModeShareDenyWrite, or
adModeShareDenyRead to set permissions on all sub-records of the current
Record |
RecordCreateOptionsEnum Valores
| Constant |
Value |
Description |
| adFailIfNotExists |
-1 |
Default. Fails if the source parameter points
to a node that not exists |
| adCreateNonCollection |
0 |
Creates a new Record of type adSimpleRecord |
| adCreateCollection |
0x2000 |
Creates a new Record specified by the
source parameter. If it points to an existing node, an error
will occur. To prevent the error combine this value with adOpenIfExists or
adCreateOverwrite |
| adOpenIfExists |
0x2000000 |
If the source points to an existing
node or Record object, then the provider
must open the existing Record instead of creating a new one. This value cannot be used
with adCreateOverwrite |
| adCreateOverwrite |
0x4000000 |
If the source points to an existing
node or Record, then the existing Record will be overwritten
and a new one is created in its place. This value cannot be used with adOpenIfExists |
| adCreateStructDoc |
0x80000000 |
Creates a new Record of type adStructDoc |
Valores RecordOpenOptionsEnum
| Constant |
Value |
Description |
| adOpenRecordUnspecified |
-1 |
Default. No options are specified |
| adOpenAsync |
0x1000 |
Opens the Record object in asynchronous mode |
| adDelayFetchStream |
0x4000 |
The default stream
associated with the Record need not be retrieved initially |
| adDelayFetchFields |
0x8000 |
The fields associated
with the Record need not be retrieved initially, but can be
retrieved at the first attempt to access the field |
| adOpenExecuteCommand |
0x10000 |
The source contains command text
that should be executed |
| adOpenOutput |
0x800000 |
If the source points to a node that
contains an executable script, then the opened Record
will contain the results of the executed script. This value is only
valid with non-collection records |
❮ Referencia completa de objetos de registro
