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Operations: Server: How to Create a Database
Create a new database on a server.
Syntax
public CreateDatabaseOperation(
DatabaseRecord databaseRecord,
int replicationFactor = 1)
{
}| Parameters | Type | Description |
|---|---|---|
| databaseRecord | DatabaseRecord | instance of DatabaseRecord containing database configuration |
| replicationFactor | int | indicates how many nodes should contain the database |
DatabaseRecord
DatabaseRecord is a collection of database configurations.
Constructor
| Name | Description |
|---|---|
DatabaseRecord(string databaseName) |
Initialize a new database record. |
Properties
| Name | Type | Description |
|---|---|---|
| Disabled | bool (default: false) |
Disable the database. |
| Encrypted | bool (default: false) |
Enables database encryption. |
| DeletionInProgress | Dictionary<string, DeletionInProgress> |
Mark the deletion of the database from specific nodes. |
| Topology | DatabaseTopology |
By default it is null and the server will decided on which nodes to place the database according to the Replication Factor. |
| ConflictSolverConfig | ConflictSolver |
Specify the strategy to resolve Conflicts. |
| Indexes | Dictionary<string, IndexDefinition> |
Define Indexes |
| AutoIndexes | Dictionary<string, AutoIndexDefinition> |
Define Auto Indexes |
| Settings | Dictionary<string, string> |
Provide Configuration settings. |
| Revisions | RevisionsConfiguration |
Set Revision configuration. |
| Expiration | ExpirationConfiguration |
Set Expiration configuration. |
| RavenConnectionStrings | Dictionary<string, RavenConnectionString> |
Add Raven Connection String |
| SqlConnectionStrings | Dictionary<string, SqlConnectionString> |
Add SQL Connection String |
| PeriodicBackups | List<PeriodicBackupConfiguration> |
Add Backup tasks. |
| ExternalReplications | List<ExternalReplications> |
Add External Replication tasks. |
| RavenEtls | List<RavenEtlConfiguration> |
Add Raven ETL tasks. |
| SqlEtls | List<SqlEtlConfiguration> |
Add SQL ETL tasks. |
| Client | ClientConfiguration |
Set Client Configuration |
Remarks
If Topology is specified, the replicationFactor will be ignored.
Example
store.Maintenance.Server.Send(new CreateDatabaseOperation(new DatabaseRecord("MyNewDatabase")));await store.Maintenance.Server.SendAsync(new CreateDatabaseOperation(new DatabaseRecord("MyNewDatabase")));Information
To ensure database exists before creating it we can use the following example
Example - EnsureDatabaseExists
public void EnsureDatabaseExists(IDocumentStore store, string database = null, bool createDatabaseIfNotExists = true)
{
database = database ?? store.Database;
if (string.IsNullOrWhiteSpace(database))
throw new ArgumentException("Value cannot be null or whitespace.", nameof(database));
try
{
store.Maintenance.ForDatabase(database).Send(new GetStatisticsOperation());
}
catch (DatabaseDoesNotExistException)
{
if (createDatabaseIfNotExists == false)
throw;
try
{
store.Maintenance.Server.Send(new CreateDatabaseOperation(new DatabaseRecord(database)));
}
catch (ConcurrencyException)
{
// The database was already created before calling CreateDatabaseOperation
}
}
}public async Task EnsureDatabaseExistsAsync(IDocumentStore store, string database = null, bool createDatabaseIfNotExists = true)
{
database = database ?? store.Database;
if (string.IsNullOrWhiteSpace(database))
throw new ArgumentException("Value cannot be null or whitespace.", nameof(database));
try
{
await store.Maintenance.ForDatabase(database).SendAsync(new GetStatisticsOperation());
}
catch (DatabaseDoesNotExistException)
{
if (createDatabaseIfNotExists == false)
throw;
try
{
await store.Maintenance.Server.SendAsync(new CreateDatabaseOperation(new DatabaseRecord(database)));
}
catch (ConcurrencyException)
{
}
}
}Note
Creation of a database requires admin certificate
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