Specifying Queries on the Command Line

1.18.1 Problem

You want to specify a query directly on the command line for mysql to execute.

1.18.2 Solution

mysql can read a query from its argument list. Use the -e (or --execute) option to specify a query on the command line.

1.18.3 Discussion

For example, to find out how many records are in the limbs table, run this command:

% mysql -e "SELECT COUNT(*) FROM limbs" cookbook
| COUNT(*) |
| 12 |

To run multiple queries with the -e option, separate them with semicolons:

% mysql -e "SELECT COUNT(*) FROM limbs;SELECT NOW( )" cookbook
| COUNT(*) |
| 12 |
| NOW( ) |
| 2001-07-04 10:42:22 |

1.18.4 See Also

By default, results generated by queries that are specified with -e are displayed in tabular format if output goes to the terminal, and in tab-delimited format otherwise. To produce a different output style, see Recipe 1.22.

Using the mysql Client Program

Writing MySQL-Based Programs

Record Selection Techniques

Working with Strings

Working with Dates and Times

Sorting Query Results

Generating Summaries

Modifying Tables with ALTER TABLE

Obtaining and Using Metadata

Importing and Exporting Data

Generating and Using Sequences

Using Multiple Tables

Statistical Techniques

Handling Duplicates

Performing Transactions

Introduction to MySQL on the Web

Incorporating Query Resultsinto Web Pages

Processing Web Input with MySQL

Using MySQL-Based Web Session Management

Appendix A. Obtaining MySQL Software

Appendix B. JSP and Tomcat Primer

Appendix C. References

MySQL Cookbook
MySQL Cookbook
ISBN: 059652708X
EAN: 2147483647
Year: 2005
Pages: 412
Authors: Paul DuBois

Flylib.com © 2008-2020.
If you may any questions please contact us: flylib@qtcs.net