Class: Sequel::Oracle::Dataset
- Includes:
- DatasetMethods
- Defined in:
- lib/sequel/adapters/oracle.rb
Defined Under Namespace
Modules: ArgumentMapper, BindArgumentMethods, PreparedStatementMethods
Constant Summary collapse
- PREPARED_ARG_PLACEHOLDER =
':'.freeze
Constants included from DatasetMethods
Sequel::Oracle::DatasetMethods::ROW_NUMBER_EXPRESSION, Sequel::Oracle::DatasetMethods::SELECT_CLAUSE_METHODS
Constants inherited from Dataset
Dataset::ACTION_METHODS, Dataset::AND_SEPARATOR, Dataset::ARG_BLOCK_ERROR_MSG, Dataset::ARRAY_ACCESS_ERROR_MSG, Dataset::BOOL_FALSE, Dataset::BOOL_TRUE, Dataset::COLUMN_CHANGE_OPTS, Dataset::COLUMN_REF_RE1, Dataset::COLUMN_REF_RE2, Dataset::COLUMN_REF_RE3, Dataset::COMMA_SEPARATOR, Dataset::CONDITIONED_JOIN_TYPES, Dataset::COUNT_FROM_SELF_OPTS, Dataset::COUNT_OF_ALL_AS_COUNT, Dataset::DATASET_ALIAS_BASE_NAME, Dataset::DELETE_CLAUSE_METHODS, Dataset::FOR_UPDATE, Dataset::IMPORT_ERROR_MSG, Dataset::INSERT_CLAUSE_METHODS, Dataset::IS_LITERALS, Dataset::IS_OPERATORS, Dataset::JOIN_METHODS, Dataset::MUTATION_METHODS, Dataset::NON_SQL_OPTIONS, Dataset::NOTIMPL_MSG, Dataset::NULL, Dataset::N_ARITY_OPERATORS, Dataset::QUALIFY_KEYS, Dataset::QUERY_METHODS, Dataset::QUESTION_MARK, Dataset::SELECT_CLAUSE_METHODS, Dataset::SQL_WITH, Dataset::STANDARD_TIMESTAMP_FORMAT, Dataset::TIMESTAMP_FORMAT, Dataset::TWO_ARITY_OPERATORS, Dataset::UNCONDITIONED_JOIN_TYPES, Dataset::UPDATE_CLAUSE_METHODS, Dataset::WILDCARD
Instance Attribute Summary
Attributes inherited from Dataset
#db, #identifier_input_method, #identifier_output_method, #opts, #quote_identifiers, #row_proc
Instance Method Summary collapse
-
#call(type, bind_vars = {}, *values, &block) ⇒ Object
Execute the given type of statement with the hash of values.
- #fetch_rows(sql) ⇒ Object
-
#prepare(type, name = nil, *values) ⇒ Object
Create a named prepared statement that is stored in the database (and connection) for reuse.
-
#requires_placeholder_type_specifiers? ⇒ Boolean
Oracle requires type specifiers for placeholders, at least if you ever want to use a nil/NULL value as the value for the placeholder.
Methods included from DatasetMethods
#complex_expression_sql, #constant_sql, #empty?, #except, #recursive_cte_requires_column_aliases?, #requires_sql_standard_datetimes?, #select_sql, #sequence, #supports_intersect_except_all?, #supports_is_true?, #supports_select_all_and_column?, #supports_timestamp_timezones?, #supports_where_true?, #supports_window_functions?
Methods included from EmulateOffsetWithRowNumber
#complex_expression_sql, #select_sql
Methods inherited from Dataset
#<<, #==, #[], #[]=, #add_graph_aliases, #aliased_expression_sql, #all, #and, #array_sql, #avg, #bind, #boolean_constant_sql, #case_expression_sql, #cast_sql, clause_methods, #clone, #column_all_sql, #columns, #columns!, #complex_expression_sql, #constant_sql, #count, #def_mutation_method, def_mutation_method, #delete, #delete_sql, #distinct, #each, #each_page, #each_server, #empty?, #eql?, #except, #exclude, #exclude_having, #exclude_where, #exists, #filter, #first, #first_source, #first_source_alias, #first_source_table, #for_update, #from, #from_self, #function_sql, #get, #graph, #grep, #group, #group_and_count, #group_by, #hash, #having, #import, #initialize, #insert, #insert_multiple, #insert_sql, #inspect, #intersect, #interval, introspect_all_columns, #invert, #join, #join_clause_sql, #join_on_clause_sql, #join_table, #join_using_clause_sql, #last, #limit, #literal, #lock_style, #map, #max, #min, #multi_insert, #multi_insert_sql, #naked, #negative_boolean_constant_sql, #or, #order, #order_append, #order_by, #order_more, #order_prepend, #ordered_expression_sql, #paginate, #placeholder_literal_string_sql, #print, #provides_accurate_rows_matched?, #qualified_identifier_sql, #qualify, #qualify_to, #qualify_to_first_source, #query, #quote_identifier, #quote_identifiers?, #quote_schema_table, #quoted_identifier, #range, #recursive_cte_requires_column_aliases?, #requires_sql_standard_datetimes?, #returning, #reverse, #reverse_order, #row_number_column, #schema_and_table, #select, #select_all, #select_append, #select_group, #select_hash, #select_map, #select_more, #select_order_map, #select_sql, #server, #set, #set_defaults, #set_graph_aliases, #set_overrides, #single_record, #single_value, #split_alias, #sql, #subscript_sql, #sum, #supports_cte?, #supports_cte_in_subqueries?, #supports_distinct_on?, #supports_insert_select?, #supports_intersect_except?, #supports_intersect_except_all?, #supports_is_true?, #supports_join_using?, #supports_modifying_joins?, #supports_multiple_column_in?, #supports_ordered_distinct_on?, #supports_returning?, #supports_select_all_and_column?, #supports_timestamp_timezones?, #supports_timestamp_usecs?, #supports_where_true?, #supports_window_functions?, #to_csv, #to_dot, #to_hash, #truncate, #truncate_sql, #unbind, #unfiltered, #ungraphed, #ungrouped, #union, #unlimited, #unordered, #unused_table_alias, #update, #update_sql, #where, #window_function_sql, #window_sql, #with, #with_recursive, #with_sql
Methods included from Metaprogramming
Methods included from SQL::StringMethods
Methods included from SQL::OrderMethods
Methods included from SQL::NumericMethods
Methods included from SQL::ComplexExpressionMethods
#extract, #sql_boolean, #sql_number, #sql_string
Methods included from SQL::CastMethods
#cast, #cast_numeric, #cast_string
Methods included from SQL::BooleanMethods
Methods included from SQL::AliasMethods
Constructor Details
This class inherits a constructor from Sequel::Dataset
Instance Method Details
#call(type, bind_vars = {}, *values, &block) ⇒ Object
Execute the given type of statement with the hash of values.
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# File 'lib/sequel/adapters/oracle.rb', line 357 def call(type, bind_vars={}, *values, &block) ps = to_prepared_statement(type, values) ps.extend(BindArgumentMethods) ps.call(bind_vars, &block) end |
#fetch_rows(sql) ⇒ Object
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# File 'lib/sequel/adapters/oracle.rb', line 376 def fetch_rows(sql) execute(sql) do |cursor| offset = @opts[:offset] rn = row_number_column cps = db.conversion_procs cols = columns = cursor.get_col_names.map{|c| output_identifier(c)} = cursor. cm = cols.zip().map{|c, m| [c, cps[m.data_type]]} columns = cols.reject{|x| x == rn} if offset @columns = columns while r = cursor.fetch row = {} r.zip(cm).each{|v, (c, cp)| row[c] = ((v && cp) ? cp.call(v) : v)} row.delete(rn) if offset yield row end end self end |
#prepare(type, name = nil, *values) ⇒ Object
Create a named prepared statement that is stored in the database (and connection) for reuse.
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# File 'lib/sequel/adapters/oracle.rb', line 366 def prepare(type, name=nil, *values) ps = to_prepared_statement(type, values) ps.extend(PreparedStatementMethods) if name ps.prepared_statement_name = name db.prepared_statements[name] = ps end ps end |
#requires_placeholder_type_specifiers? ⇒ Boolean
Oracle requires type specifiers for placeholders, at least if you ever want to use a nil/NULL value as the value for the placeholder.
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# File 'lib/sequel/adapters/oracle.rb', line 411 def requires_placeholder_type_specifiers? true end |