Sophie: php-manual-zh-5.2.4-1mdv2008.1 noarch

php-manual-zh-5.2.4-1mdv2008.1.noarch.rpm

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><H1
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>db2_columns</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN79837"
></A
><P
>    (PECL)</P
>db2_columns&nbsp;--&nbsp;
   Returns a result set listing the columns and associated metadata for a table
  </DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN79840"
></A
><H2
>说明</H2
>resource <B
CLASS="methodname"
>db2_columns</B
> ( resource connection [, string qualifier [, string schema [, string table-name [, string column-name]]]] )<BR
></BR
><P
>&#13;   Returns a result set listing the columns and associated metadata for a
   table.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN79861"
></A
><H2
>参数</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>connection</CODE
></DT
><DD
><P
>&#13;       A valid connection to an IBM DB2, Cloudscape, or Apache Derby database.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>qualifier</CODE
></DT
><DD
><P
>&#13;       A qualifier for DB2 databases running on OS/390 or z/OS servers. For
       other databases, pass <TT
CLASS="constant"
><B
>NULL</B
></TT
> or an empty string.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>schema</CODE
></DT
><DD
><P
>&#13;       The schema which contains the tables. To match all schemas, pass
       <TT
CLASS="literal"
>'%'</TT
>.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>table-name</CODE
></DT
><DD
><P
>&#13;       The name of the table or view. To match all tables in the database,
       pass <TT
CLASS="constant"
><B
>NULL</B
></TT
> or an empty string.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>column-name</CODE
></DT
><DD
><P
>&#13;       The name of the column. To match all columns in the table, pass <TT
CLASS="constant"
><B
>NULL</B
></TT
>
       or an empty string.
      </P
></DD
></DL
></DIV
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN79894"
></A
><H2
>返回值</H2
><P
>&#13;   Returns a statement resource with a result set containing rows describing
   the columns matching the specified parameters. The rows are composed of
   the following columns:
   <DIV
CLASS="informaltable"
><P
></P
><A
NAME="AEN79897"
></A
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><COL><COL><THEAD
><TR
><TH
>Column name</TH
><TH
>Description</TH
></TR
></THEAD
><TBODY
><TR
><TD
>TABLE_CAT</TD
><TD
>Name of the catalog. The value is NULL if this table does not
         have catalogs.</TD
></TR
><TR
><TD
>TABLE_SCHEM</TD
><TD
>Name of the schema.</TD
></TR
><TR
><TD
>TABLE_NAME</TD
><TD
>Name of the table or view.</TD
></TR
><TR
><TD
>COLUMN_NAME</TD
><TD
>Name of the column.</TD
></TR
><TR
><TD
>DATA_TYPE</TD
><TD
>The SQL data type for the column represented as an integer value.</TD
></TR
><TR
><TD
>TYPE_NAME</TD
><TD
>A string representing the data type for the column.</TD
></TR
><TR
><TD
>COLUMN_SIZE</TD
><TD
>An integer value representing the size of the column.</TD
></TR
><TR
><TD
>BUFFER_LENGTH</TD
><TD
>&#13;         Maximum number of bytes necessary to store data from this column.
        </TD
></TR
><TR
><TD
>DECIMAL_DIGITS</TD
><TD
>&#13;         The scale of the column, or <TT
CLASS="constant"
><B
>NULL</B
></TT
> where scale is not applicable.
        </TD
></TR
><TR
><TD
>NUM_PREC_RADIX</TD
><TD
>&#13;         An integer value of either <TT
CLASS="literal"
>10</TT
> (representing
         an exact numeric data type), <TT
CLASS="literal"
>2</TT
> (representing an
         approximate numeric data type), or <TT
CLASS="constant"
><B
>NULL</B
></TT
> (representing a data type for
         which radix is not applicable).
        </TD
></TR
><TR
><TD
>NULLABLE</TD
><TD
>An integer value representing whether the column is nullable or
        not.</TD
></TR
><TR
><TD
>REMARKS</TD
><TD
>Description of the column.</TD
></TR
><TR
><TD
>COLUMN_DEF</TD
><TD
>Default value for the column.</TD
></TR
><TR
><TD
>SQL_DATA_TYPE</TD
><TD
>An integer value representing the size of the column.</TD
></TR
><TR
><TD
>SQL_DATETIME_SUB</TD
><TD
>&#13;         Returns an integer value representing a datetime subtype code,
         or <TT
CLASS="constant"
><B
>NULL</B
></TT
> for SQL data types to which this does not apply.
        </TD
></TR
><TR
><TD
>CHAR_OCTET_LENGTH</TD
><TD
>&#13;         Maximum length in octets for a character data type column, which
         matches COLUMN_SIZE for single-byte character set data, or <TT
CLASS="constant"
><B
>NULL</B
></TT
> for
         non-character data types.
        </TD
></TR
><TR
><TD
>ORDINAL_POSITION</TD
><TD
>The 1-indexed position of the column in the table.</TD
></TR
><TR
><TD
>IS_NULLABLE</TD
><TD
>&#13;         A string value where 'YES' means that the column is nullable and
         'NO' means that the column is not nullable.
       </TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
>

  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN79964"
></A
><H2
>参见</H2
><P
>&#13;   <P
></P
><TABLE
BORDER="0"
><TBODY
><TR
><TD
><A
HREF="function.db2-column-privileges.html"
><B
CLASS="function"
>db2_column_privileges()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.db2-foreign-keys.html"
><B
CLASS="function"
>db2_foreign_keys()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.db2-primary-keys.html"
><B
CLASS="function"
>db2_primary_keys()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.db2-procedure-columns.html"
><B
CLASS="function"
>db2_procedure_columns()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.db2-procedures.html"
><B
CLASS="function"
>db2_procedures()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.db2-special-columns.html"
><B
CLASS="function"
>db2_special_columns()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.db2-statistics.html"
><B
CLASS="function"
>db2_statistics()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.db2-table-privileges.html"
><B
CLASS="function"
>db2_table_privileges()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.db2-tables.html"
><B
CLASS="function"
>db2_tables()</B
></A
></TD
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