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Last updated: 2024-12-04 10:12:05

    Overview

    This command is used to export all data from a table to the console or to a file.

    Syntax

    ## Exporting Partial Fields
    dump key1, key2, value1, value2 [into result.csv] from table limit 10;
    
    ## Exporting as an XML File
    dump * [into filename] from table limit 10 using tdr;
    
    ## Exporting as a CSV File
    dump * [into filename] from table limit 10;

    Parameters

    Parameter
    Protobuf
    TDR
    Required
    table
    Table name
    Table name
    Yes
    key
    Primary key field name. All key values are required.
    Primary key field name. All key values are required.
    Yes
    value
    Non-primary key field name
    Non-primary key field name
    No
    limit
    LIST table: the number of exported keys. One key to multiple records.
    GENERIC table: the number of exported records. One key to one record.
    LIST table: the number of exported keys. One key to multiple records.
    GENERIC table: the number of exported records. One key to one record.
    No
    using
    Not supported
    When data is output in XML format, the file structure must strictly comply with the XML syntax. A TDR file must be provided when the client is launched.
    No
    into
    Export as a file.
    Export as a file.
    No

    Errors

    For more information, please see Error Codes.

    Sample

    tcaplus> dump * from table_list limit 0;
    uin,name,key1,level,count,array_count,items,c_int8,c_uint8,c_int16,c_uint16,c_int32,c_uint32,c_int64,c_uint64,c_float,c_double,c_string,c_string_128K,c_string_256K,c_binary,binary,selector,single_struct,simple_struct,single_union_selector,single_union,array,c_union,union_array,c_struct,struct_array
    99,"99",99,1,0,1,0x,-1,2,-3,4,-5,6,-7,0,1.234568,9.876543,"","123456789","123456789",0x,0,0,0x,0x,0,0x,0x,0x,0x,0x,0x
    99,"99",99,1,0,1,0x,-1,2,-3,4,-5,6,-7,0,1.234568,9.876543,"","123456789","123456789",0x,0,0,0x,0x,0,0x,0x,0x,0x,0x,0x
    99,"99",99,1,0,1,0x,-1,2,-3,4,-5,6,-7,0,1.234568,9.876543,"","123456789","123456789",0x,0,0,0x,0x,0,0x,0x,0x,0x,0x,0x
    99,"99",99,1,0,1,0x,-1,2,-3,4,-5,6,-7,0,1.234568,9.876543,"","123456789","123456789",0x,0,0,0x,0x,0,0x,0x,0x,0x,0x,0x
    
    dump 4 records successful
    
    dump time: 121671 us
    
    tcaplus> dump * into table_list.txt from table_list limit 0;
    
    dumped 4 records successful
    
    tcaplus> dump * into table_list.xml from table_list limit 0 using tdr;
    
    dumped 4 records successful
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