Class DmlResult (2.30.0)
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This class encapsulates the result of a Cloud Spanner DML operation, i.e., INSERT
, UPDATE
, or DELETE
.
Example:
using ::google::cloud::StatusOr;
namespace spanner = ::google::cloud::spanner;
std::int64_t rows_inserted;
auto commit_result = client.Commit(
[&client, &rows_inserted](
spanner::Transaction txn) -> StatusOr<spanner::Mutations> {
auto insert = client.ExecuteDml(
std::move(txn),
spanner::SqlStatement(
"INSERT INTO Singers (SingerId, FirstName, LastName)"
" VALUES (10, 'Virginia', 'Watson')"));
if (!insert) return std::move(insert).status();
rows_inserted = insert->RowsModified();
return spanner::Mutations{};
});
if (!commit_result) throw std::move(commit_result).status();
std::cout << "Rows inserted: " << rows_inserted;
Constructors
DmlResult()
DmlResult(std::unique_ptr< ResultSourceInterface >)
Parameter |
Name |
Description |
source |
std::unique_ptr< ResultSourceInterface >
|
DmlResult(DmlResult &&)
Parameter |
Name |
Description |
|
DmlResult &&
|
Operators
operator=(DmlResult &&)
Parameter |
Name |
Description |
|
DmlResult &&
|
Returns |
Type |
Description |
DmlResult & |
|
Functions
RowsModified() const
Returns the number of rows modified by the DML statement.
Returns |
Type |
Description |
std::int64_t |
|
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Last updated 2024-10-04 UTC.
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