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  1. #1
    SitePoint Guru phantom007's Avatar
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    May 2008
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    Question Importing Large Backups


    I have a 600 MB .sql dump which I got from someone.

    I need to import that .sql file to my database. PHPmyadmin does not allow that big files to import. The desktop based mysql client (SQLYog) which I am using to manage MySQL databases, also crashes while importing.

    I am on a windows system. Could you please suggest me a better and effective way to import it?

    Thanx in advance.

  2. #2
    SitePoint Evangelist
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    use the mysql cli.
    Yogsql probably crash because it tries to read the 600 Mo in memory first.
    With the command line, you can stream the dump without copying in memory.

    1) put your .sql in a easily typed place, like c:\
    2) locate the emplacement of mysql.exe on your computer. For example: "c:\dev\mysql\bin"
    3) press the "win" and r key together, and type "cmd" in the run box
    4) go to the place where mysql.exe is:
    cd \dev\mysql\bin
    5) enter in the cli command and give your password when asked
    mysql.exe -u username dbname -h serverIp
    6) After that, you are connected to the db, and you can use the command
    \. c:\bigdump.sql
    to send the dump to your server

  3. #3
    SitePoint Guru phantom007's Avatar
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    Sorry it does not ask for the password instead it shows a huge list of text

    C:\Program Files\Server\MySQL\bin>mysql.exe -uroot logix
    mysql.exe Ver 14.12 Distrib 5.0.51b, for Win32 (ia32)
    Copyright (C) 2002 MySQL AB
    This software comes with ABSOLUTELY NO WARRANTY. This is free software,
    and you are welcome to modify and redistribute it under the GPL license
    Usage: mysql.exe [OPTIONS] [database]
    -?, --help Display this help and exit.
    -I, --help Synonym for -?
    --auto-rehash Enable automatic rehashing. One doesn't need to use
    'rehash' to get table and field completion, but startup
    and reconnecting may take a longer time. Disable with
    -A, --no-auto-rehash
    No automatic rehashing. One has to use 'rehash' to get
    table and field completion. This gives a quicker start of
    mysql and disables rehashing on reconnect. WARNING:
    options deprecated; use --disable-auto-rehash instead.
    -B, --batch Don't use history file. Disable interactive behavior.
    (Enables --silent)
    Directory where character sets are.
    Set the default character set.
    -C, --compress Use compression in server/client protocol.
    -#, --debug[=#] This is a non-debug version. Catch this and exit
    -D, --database=name Database to use.
    --delimiter=name Delimiter to be used.
    -e, --execute=name Execute command and quit. (Disables --force and history
    -E, --vertical Print the output of a query (rows) vertically.
    -f, --force Continue even if we get an sql error.
    -G, --named-commands
    Enable named commands. Named commands mean this program's
    internal commands; see mysql> help . When enabled, the
    named commands can be used from any line of the query,
    otherwise only from the first line, before an enter.
    Disable with --disable-named-commands. This option is
    disabled by default.
    -g, --no-named-commands
    Named commands are disabled. Use \* form only, or use
    named commands only in the beginning of a line ending
    with a semicolon ( Since version 10.9 the client now
    starts with this option ENABLED by default! Disable with
    '-G'. Long format commands still work from the first
    line. WARNING: option deprecated; use
    --disable-named-commands instead.
    -i, --ignore-spaces Ignore space after function names.
    --local-infile Enable/disable LOAD DATA LOCAL INFILE.
    -b, --no-beep Turn off beep on error.
    -h, --host=name Connect to host.
    -H, --html Produce HTML output.
    -X, --xml Produce XML output
    --line-numbers Write line numbers for errors.
    -L, --skip-line-numbers
    Don't write line number for errors. WARNING: -L is
    deprecated, use long version of this option instead.
    -n, --unbuffered Flush buffer after each query.
    --column-names Write column names in results.
    -N, --skip-column-names
    Don't write column names in results. WARNING: -N is
    deprecated, use long version of this options instead.
    -O, --set-variable=name
    Change the value of a variable. Please note that this
    option is deprecated; you can set variables directly with
    --sigint-ignore Ignore SIGINT (CTRL-C)
    -o, --one-database Only update the default database. This is useful for
    skipping updates to other database in the update log.
    -p, --password[=name]
    Password to use when connecting to server. If password is
    not given it's asked from the tty.
    -W, --pipe Use named pipes to connect to server.
    -P, --port=# Port number to use for connection.
    --prompt=name Set the mysql prompt to this value.
    --protocol=name The protocol of connection (tcp,socket,pipe,memory).
    -q, --quick Don't cache result, print it row by row. This may slow
    down the server if the output is suspended. Doesn't use
    history file.
    -r, --raw Write fields without conversion. Used with --batch.
    --reconnect Reconnect if the connection is lost. Disable with
    --disable-reconnect. This option is enabled by default.
    -s, --silent Be more silent. Print results with a tab as separator,
    each row on new line.
    Base name of shared memory.
    -S, --socket=name Socket file to use for connection.
    --ssl Enable SSL for connection (automatically enabled with
    other flags). Disable with --skip-ssl.
    --ssl-ca=name CA file in PEM format (check OpenSSL docs, implies
    --ssl-capath=name CA directory (check OpenSSL docs, implies --ssl).
    --ssl-cert=name X509 cert in PEM format (implies --ssl).
    --ssl-cipher=name SSL cipher to use (implies --ssl).
    --ssl-key=name X509 key in PEM format (implies --ssl).
    Verify server's "Common Name" in its cert against
    hostname used when connecting. This option is disabled by
    -t, --table Output in table format.
    -T, --debug-info Print some debug info at exit.
    --tee=name Append everything into outfile. See interactive help (\h)
    also. Does not work in batch mode. Disable with
    --disable-tee. This option is disabled by default.
    --no-tee Disable outfile. See interactive help (\h) also. WARNING:
    option deprecated; use --disable-tee instead
    -u, --user=name User for login if not current user.
    -U, --safe-updates Only allow UPDATE and DELETE that uses keys.
    -U, --i-am-a-dummy Synonym for option --safe-updates, -U.
    -v, --verbose Write more. (-v -v -v gives the table output format).
    -V, --version Output version information and exit.
    -w, --wait Wait and retry if connection is down.
    --connect_timeout=# Number of seconds before connection timeout.
    Max packet length to send to, or receive from server
    Buffer for TCP/IP and socket communication
    --select_limit=# Automatic limit for SELECT when using --safe-updates
    --max_join_size=# Automatic limit for rows in a join when using
    --secure-auth Refuse client connecting to server if it uses old
    (pre-4.1.1) protocol
    --show-warnings Show warnings after every statement.

    Default options are read from the following files in the given order:
    C:\my.ini C:\my.cnf C:\WINDOWS\my.ini C:\WINDOWS\my.cnf C:\Program Files\Server\
    MySQL\my.ini C:\Program Files\Server\MySQL\my.cnf
    The following groups are read: mysql client
    The following options may be given as the first argument:
    --print-defaults Print the program argument list and exit
    --no-defaults Don't read default options from any options file
    --defaults-file=# Only read default options from the given file #
    --defaults-extra-file=# Read this file after the global files are read

    Variables (--variable-name=value)
    and boolean options {FALSE|TRUE} Value (after reading options)
    --------------------------------- -----------------------------
    auto-rehash TRUE
    character-sets-dir (No default value)
    default-character-set latin1
    compress FALSE
    database (No default value)
    delimiter ;
    vertical FALSE
    force FALSE
    named-commands FALSE
    local-infile FALSE
    no-beep FALSE
    host (No default value)
    html FALSE
    xml FALSE
    line-numbers TRUE
    unbuffered FALSE
    column-names TRUE
    sigint-ignore FALSE
    port 3306
    prompt mysql>
    quick FALSE
    raw FALSE
    reconnect TRUE
    shared-memory-base-name (No default value)
    socket (No default value)
    ssl FALSE
    ssl-ca (No default value)
    ssl-capath (No default value)
    ssl-cert (No default value)
    ssl-cipher (No default value)
    ssl-key (No default value)
    ssl-verify-server-cert FALSE
    table FALSE
    debug-info FALSE
    user root
    safe-updates FALSE
    i-am-a-dummy FALSE
    connect_timeout 0
    max_allowed_packet 16777216
    net_buffer_length 16384
    select_limit 1000
    max_join_size 1000000
    secure-auth FALSE
    show-warnings FALSE

    C:\Program Files\Server\MySQL\bin>

  4. #4
    SitePoint Evangelist
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    Aug 2007
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    it's because you missed a space and a trigger in the command.
    Beside, the db name must be the last parameter.
    it's not
    mysql.exe -uroot logix
    mysql.exe -h -u root logix
    And the "huge list of text" is nothing less than the explanation of the options you can give to mysql.exe

  5. #5
    SitePoint Guru phantom007's Avatar
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    May 2008
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    Now I get this

    C:\Program Files\Server\MySQL\bin>mysql.exe -h -u root logix
    ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: N

    C:\Program Files\Server\MySQL\bin>

  6. #6
    SitePoint Evangelist
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    Aug 2007
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    Well, you'll have to sort it out.
    The server is telling you that the user "root" is not allowed to connect to the server.
    you have to connect whichever way you are doing this usually, and try to sort it out.

    If you have the rights, you can try to issue an grant from your usual client
    grant all on logix.* to restoreUser@'localhost' with password '123456';
    This should create a new user called "restoreUser", that would only be allowed to connect from the same machine that the server runs to the db "logix" with the password "123456".


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