[Tex/LaTex] Changing Table Numbering Scheme to Include Section Number

Question

When I create a table and use \caption, Latex automatically adds "Table 1.1" or something similarly numbered. I'm using the book format, and want the caption numbering to be of the form "Table x.y.z", where x is the chapter number, y is the section number, and z is the table number within x.y. For example, the second table in section 4 in chapter 2 should say "Table 2.4.2".
How do I make Latex change the numbering of the tables?

Answer 1

Although your question is closely related to the following question, the numbering scheme you want is different.

• Continuous v. per-chapter/section numbering of figures, tables, and other document elements

The general solution is the same, however:

Use the chngcntr package to determine which counters depend on which. In your case, you want the table counter to depend on the section counter, so you add

\usepackage{chngcntr}
\counterwithin{table}{section}