Export MySQL query to Excel file

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Export MySQL query to Excel file (XLS or XLSX file)

Microsoft Excel (XLS or XLSX) & OpenDocument Spreadsheet (ODS) file limits[edit]

Title File extension Data rows size Length of cell Available solutions
Microsoft Excel Open XML Spreadsheet XLSX Maximum of worksheet size is 1,048,576 rows by 16,384 columns.[1][2][3] (1) Length of formula contents: 8,192 characters
(2) Total number of characters that a cell can contain: 32,767 characters[4]
Microsoft Excel 2007, EXCEL 2013 and more
Microsoft Excel Spreadsheet XLS Maximum of worksheet size is 65,536 rows by 256 columns.
Icon exclaim.gif Because first row is column name, actual data size is 65,535 rows. [5][6]
Microsoft Excel 2003 and more
OpenDocument Spreadsheet ODS Maximum of worksheet size is 1,048,576 (2^20) rows by 1024 columns for LibreOffice spreadsheet & OpenOffice.org Calc 3 [7][8]. Total number of characters that a cell can contain: 32,767 characters for LibreOffice spreadsheet[9]. LibreOffice(LibreOffice Portable) spreadsheet 3.3.3+ & Apache OpenOffice.org Calc 3+ and more
  • Google spreadsheet:
    • 約 1000列。 所有工作表共 40 萬個儲存格。如果只使用一個工作表,使用256 欄,則列數限制為 1,562 列[10]
  • Office 365: 資料模型的規格與限制 - Excel - Office.com 適用: Excel 2013, Power BI for Office 365 Preview, Power Pivot in Excel 2013

Methods[edit]

One step conversion: ex MySQL query -> Excel file[edit]

Methods of exporting MySQL query -> XLS/XLSX file: PHP scripts or other MySQL client softwares e.g.

Notice the limit of Excel XLS file format:

  1. "Total number of characters that a cell can contain: 32,767 characters"
    • Using MySQL SUBSTRING() function ex: SUBSTRING(string_column, 1, 32767) for EXCEL 97[11]-2007[12] (XLS 檔)
    • validate the count of characters: MySQL CHAR_LENGTH or Excel LEN functions
  2. "Length of formula contents: 8,192 characters" If the content start with the symbol = or -, Excel will consider the content is formula.
    • Using CONCAT ' symbol ex: CONCAT('\'', string_column) If the content is not formula.
  3. "Worksheet size: 1,048,576 rows":
    • Using LIMIT 1048576 for EXCEL 2007

integrated solution for Excel limit 1 ~ limit 3

  • SELECT SUBSTRING(IF(LEFT(string_column, 1) = '-' OR LEFT(string_column, 1) = '=', CONCAT('\'', string_column), string_column), 1, 32767) FROM <table> LIMIT 1048576

相關文章

Two steps conversion ex: MySQL query -> CSV file -> Excel file[edit]

Step 1: Export the MySQL query -> CSV file[edit]

mysqldump: Got error: 1045: Access denied for user 'user_name'@'localhost' (using password: YES) when executing 'SELECT INTO OUTFILE'

Condition 1: If the rows count of MySQL query is larger than 65,535 rows. You can use MS Excel.

  • Cell contains return symbol should be replaced.

Condition 2: If the rows count of MySQL query is less than 65,535 rows. You can use LibreOffice Calc & MS Excel.

Step 2: Convert CSV to XLSX/XLS file format.[edit]

Step 3: Data verification[edit]

  1. Verify the data rows count: Equal to the rows count of MySQL query. Not equal to 65,535 rows or less than the rows count of MySQL query.
  2. Verify the data column is in correct position
    • Icon exclaim.gif If the CSV is not well-formatted, sometimes the data column after imported to Excel is in wrong position.
  3. Verify the rows count
    • If the data size is less than 65,535 rows, convert CSV to Excel/XLS by LibreOffice Calc is recommended.
    • If the data size is larger than 65,535 rows, Adjust the MySQL query to avoid the column value contains the
      • enclosure character e.g. Tab key
      • escape the enclosure character e.g. " become ""
      • return symbol to separate different data row.

Technical issues: If it costs too much time to convert to Excel file[edit]

The important steps before generating CSV file. These steps reduce the problems when the CSV file was converted to Excel file.

  • Add delimiter character between different column ex: comma symbol (,) or tab symbol
  • Add enclosure character ex: double quote symbol (") or single quote symbol (')
  • Add escape character escape the column value if contains the enclosure character
  • Remove return symbol[13]:
    SELECT REPLACE(REPLACE(REPLACE(`my_column`, '\r\n', '   '), '\n', '   '), '\r', '   ') 


Database management tools[edit]

Database management tools

References[edit]

  1. Excel specifications and limits
  2. Excel 的規格及限制 工作表大小
  3. Excel specifications and limits - Excel
  4. Err: 解決 Navicat 「存放裝置空間不足,無法完成此操作」問題訊息
  5. What is the maximum allowed rows in a Microsoft Excel .xls or .xlsx - Super User
  6. Worksheet compatibility issues - Excel.
  7. Frequently asked questions - Calc - The Document Foundation Wiki
  8. OpenOffice Calc - Simple English Wikipedia, the free encyclopedia
  9. Frequently asked questions - Calc - The Document Foundation Wiki
  10. Google 文件、試算表和簡報的檔案大小限制 - 雲端硬碟說明
  11. Summary of capability limitations in Excel 97
  12. Excel specifications and limits
  13. trim - How to remove new line characters from data rows in mysql? - Stack Overflow