Class: Google::Apis::SpannerV1::Statement

Inherits:

Object

• Object
• Google::Apis::SpannerV1::Statement

Includes:

Core::Hashable, Core::JsonObjectSupport

Defined in:

lib/google/apis/spanner_v1/classes.rb,
lib/google/apis/spanner_v1/representations.rb,
lib/google/apis/spanner_v1/representations.rb

Overview

A single DML statement.

Instance Attribute Summary

• #param_types ⇒ Hash<String,Google::Apis::SpannerV1::Type>

  It is not always possible for Cloud Spanner to infer the right SQL type from a JSON value.

• #params ⇒ Hash<String,Object>

  Parameter names and values that bind to placeholders in the DML string.

• #sql ⇒ String

  Required.

Instance Method Summary

• #initialize(**args) ⇒ Statement constructor

  A new instance of Statement.

• #update!(**args) ⇒ Object

  Update properties of this object.

Constructor Details

#initialize(**args) ⇒ Statement

Returns a new instance of Statement.

# File 'lib/google/apis/spanner_v1/classes.rb', line 3178

def initialize(**args)
   update!(**args)
end

Instance Attribute Details

#param_types ⇒ Hash<String,Google::Apis::SpannerV1::Type>

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 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 for more information about SQL types. Corresponds to the JSON property paramTypes

Returns:

• (Hash<String,Google::Apis::SpannerV1::Type>)

# File 'lib/google/apis/spanner_v1/classes.rb', line 3160

def param_types
  @param_types
end

#params ⇒ Hash<String,Object>

Parameter names and values that bind to placeholders in the DML string. A parameter placeholder consists of the @ character followed by the parameter name (for example, @firstName). Parameter names can contain letters, numbers, and underscores. 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. Corresponds to the JSON property params

Returns:

• (Hash<String,Object>)

# File 'lib/google/apis/spanner_v1/classes.rb', line 3171

def params
  @params
end

#sql ⇒ String

Required. The DML string. Corresponds to the JSON property sql

Returns:

• (String)

# File 'lib/google/apis/spanner_v1/classes.rb', line 3176

def sql
  @sql
end

Instance Method Details

#update!(**args) ⇒ Object

Update properties of this object

# File 'lib/google/apis/spanner_v1/classes.rb', line 3183

def update!(**args)
  @param_types = args[:param_types] if args.key?(:param_types)
  @params = args[:params] if args.key?(:params)
  @sql = args[:sql] if args.key?(:sql)
end