public sealed class ExecuteSqlRequest : IMessage<ExecuteSqlRequest>, IEquatable<ExecuteSqlRequest>, IDeepCloneable<ExecuteSqlRequest>, IBufferMessage, IMessageThe request for [ExecuteSql][google.spanner.v1.Spanner.ExecuteSql] and [ExecuteStreamingSql][google.spanner.v1.Spanner.ExecuteStreamingSql].
Implements
IMessage<ExecuteSqlRequest>, IEquatable<ExecuteSqlRequest>, IDeepCloneable<ExecuteSqlRequest>, IBufferMessage, IMessageNamespace
Google.Cloud.Spanner.V1Assembly
Google.Cloud.Spanner.V1.dll
Constructors
ExecuteSqlRequest()
public ExecuteSqlRequest()ExecuteSqlRequest(ExecuteSqlRequest)
public ExecuteSqlRequest(ExecuteSqlRequest other)| Parameter | |
|---|---|
| Name | Description |
other | ExecuteSqlRequest |
Properties
Params
public Struct Params { get; set; }Parameter names and values that bind to placeholders in the SQL string.
A parameter placeholder consists of the @ character followed by the
parameter name (for example, @firstName). Parameter names must conform
to the naming requirements of identifiers as specified at
https://cloud.google.com/spanner/docs/lexical#identifiers.
Parameters can appear anywhere that a literal value is expected. The same parameter name can be used more than once, for example:
"WHERE id > @msg_id AND id < @msg_id + 100"
It is an error to execute a SQL statement with unbound parameters.
| Property Value | |
|---|---|
| Type | Description |
Struct | |
ParamTypes
public MapField<string, Type> ParamTypes { get; }It is not always possible for Cloud Spanner to infer the right SQL type
from a JSON value. For example, values of type BYTES and values
of type STRING both appear in [params][google.spanner.v1.ExecuteSqlRequest.params] as JSON strings.
In these cases, param_types can be used to specify the exact
SQL type for some or all of the SQL statement parameters. See the
definition of [Type][google.spanner.v1.Type] for more information
about SQL types.
| Property Value | |
|---|---|
| Type | Description |
MapField<String, Type> | |
PartitionToken
public ByteString PartitionToken { get; set; }If present, results will be restricted to the specified partition previously created using PartitionQuery(). There must be an exact match for the values of fields common to this message and the PartitionQueryRequest message used to create this partition_token.
| Property Value | |
|---|---|
| Type | Description |
ByteString | |
QueryMode
public ExecuteSqlRequest.Types.QueryMode QueryMode { get; set; }Used to control the amount of debugging information returned in [ResultSetStats][google.spanner.v1.ResultSetStats]. If [partition_token][google.spanner.v1.ExecuteSqlRequest.partition_token] is set, [query_mode][google.spanner.v1.ExecuteSqlRequest.query_mode] can only be set to [QueryMode.NORMAL][google.spanner.v1.ExecuteSqlRequest.QueryMode.NORMAL].
| Property Value | |
|---|---|
| Type | Description |
ExecuteSqlRequest.Types.QueryMode | |
QueryOptions
public ExecuteSqlRequest.Types.QueryOptions QueryOptions { get; set; }Query optimizer configuration to use for the given query.
| Property Value | |
|---|---|
| Type | Description |
ExecuteSqlRequest.Types.QueryOptions | |
ResumeToken
public ByteString ResumeToken { get; set; }If this request is resuming a previously interrupted SQL statement
execution, resume_token should be copied from the last
[PartialResultSet][google.spanner.v1.PartialResultSet] yielded before the interruption. Doing this
enables the new SQL statement execution to resume where the last one left
off. The rest of the request parameters must exactly match the
request that yielded this token.
| Property Value | |
|---|---|
| Type | Description |
ByteString | |
Seqno
public long Seqno { get; set; }A per-transaction sequence number used to identify this request. This field makes each request idempotent such that if the request is received multiple times, at most one will succeed.
The sequence number must be monotonically increasing within the transaction. If a request arrives for the first time with an out-of-order sequence number, the transaction may be aborted. Replays of previously handled requests will yield the same response as the first execution.
Required for DML statements. Ignored for queries.
| Property Value | |
|---|---|
| Type | Description |
Int64 | |
Session
public string Session { get; set; }Required. The session in which the SQL query should be performed.
| Property Value | |
|---|---|
| Type | Description |
String | |
SessionAsSessionName
public SessionName SessionAsSessionName { get; set; }SessionName-typed view over the Session resource name property.
| Property Value | |
|---|---|
| Type | Description |
SessionName | |
Sql
public string Sql { get; set; }Required. The SQL string.
| Property Value | |
|---|---|
| Type | Description |
String | |
Transaction
public TransactionSelector Transaction { get; set; }The transaction to use.
For queries, if none is provided, the default is a temporary read-only transaction with strong concurrency.
Standard DML statements require a read-write transaction. To protect against replays, single-use transactions are not supported. The caller must either supply an existing transaction ID or begin a new transaction.
Partitioned DML requires an existing Partitioned DML transaction ID.
| Property Value | |
|---|---|
| Type | Description |
TransactionSelector | |