jdk.sql.ResultSetMetaData — clojure-interop/java.sql 1.0.5

An object that can be used to get information about the types and properties of the columns in a ResultSet object. The following code fragment creates the ResultSet object rs, creates the ResultSetMetaData object rsmd, and uses rsmd to find out how many columns rs has and whether the first column in rs can be used in a WHERE clause.

ResultSet rs = stmt.executeQuery("SELECT a, b, c FROM TABLE2");
ResultSetMetaData rsmd = rs.getMetaData();
int numberOfColumns = rsmd.getColumnCount();
boolean b = rsmd.isSearchable(1);

auto-increment? clj

(auto-increment? this column)

Indicates whether the designated column is automatically numbered.

column - the first column is 1, the second is 2, ... - int

returns: true if so; false otherwise - boolean

throws: java.sql.SQLException - if a database access error occurs

case-sensitive? clj

(case-sensitive? this column)

Indicates whether a column's case matters.

column - the first column is 1, the second is 2, ... - int

returns: true if so; false otherwise - boolean

throws: java.sql.SQLException - if a database access error occurs

currency? clj

(currency? this column)

Indicates whether the designated column is a cash value.

column - the first column is 1, the second is 2, ... - int

returns: true if so; false otherwise - boolean

throws: java.sql.SQLException - if a database access error occurs

definitely-writable? clj

(definitely-writable? this column)

Indicates whether a write on the designated column will definitely succeed.

column - the first column is 1, the second is 2, ... - int

returns: true if so; false otherwise - boolean

throws: java.sql.SQLException - if a database access error occurs

get-catalog-name clj

(get-catalog-name this column)

Gets the designated column's table's catalog name.

column - the first column is 1, the second is 2, ... - int

returns: the name of the catalog for the table in which the given column appears or "" if not applicable - java.lang.String

throws: java.sql.SQLException - if a database access error occurs

get-column-class-name clj

(get-column-class-name this column)

Returns the fully-qualified name of the Java class whose instances are manufactured if the method ResultSet.getObject is called to retrieve a value from the column. ResultSet.getObject may return a subclass of the class returned by this method.

column - the first column is 1, the second is 2, ... - int

returns: the fully-qualified name of the class in the Java programming language that would be used by the method ResultSet.getObject to retrieve the value in the specified column. This is the class name used for custom mapping. - java.lang.String

throws: java.sql.SQLException - if a database access error occurs

get-column-count clj

(get-column-count this)

Returns the number of columns in this ResultSet object.

returns: the number of columns - int

throws: java.sql.SQLException - if a database access error occurs

get-column-display-size clj

(get-column-display-size this column)

Indicates the designated column's normal maximum width in characters.

column - the first column is 1, the second is 2, ... - int

returns: the normal maximum number of characters allowed as the width of the designated column - int

throws: java.sql.SQLException - if a database access error occurs

get-column-label clj

(get-column-label this column)

Gets the designated column's suggested title for use in printouts and displays. The suggested title is usually specified by the SQL AS clause. If a SQL AS is not specified, the value returned from getColumnLabel will be the same as the value returned by the getColumnName method.

column - the first column is 1, the second is 2, ... - int

returns: the suggested column title - java.lang.String

throws: java.sql.SQLException - if a database access error occurs

get-column-name clj

(get-column-name this column)

Get the designated column's name.

column - the first column is 1, the second is 2, ... - int

returns: column name - java.lang.String

throws: java.sql.SQLException - if a database access error occurs

get-column-type clj

(get-column-type this column)

Retrieves the designated column's SQL type.

column - the first column is 1, the second is 2, ... - int

returns: SQL type from java.sql.Types - int

throws: java.sql.SQLException - if a database access error occurs

get-column-type-name clj

(get-column-type-name this column)

Retrieves the designated column's database-specific type name.

column - the first column is 1, the second is 2, ... - int

returns: type name used by the database. If the column type is a user-defined type, then a fully-qualified type name is returned. - java.lang.String

throws: java.sql.SQLException - if a database access error occurs

get-precision clj

(get-precision this column)

Get the designated column's specified column size. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. 0 is returned for data types where the column size is not applicable.

column - the first column is 1, the second is 2, ... - int

returns: precision - int

throws: java.sql.SQLException - if a database access error occurs

get-scale clj

(get-scale this column)

Gets the designated column's number of digits to right of the decimal point. 0 is returned for data types where the scale is not applicable.

column - the first column is 1, the second is 2, ... - int

returns: scale - int

throws: java.sql.SQLException - if a database access error occurs

get-schema-name clj

(get-schema-name this column)

Get the designated column's table's schema.

column - the first column is 1, the second is 2, ... - int

returns: schema name or "" if not applicable - java.lang.String

throws: java.sql.SQLException - if a database access error occurs

get-table-name clj

(get-table-name this column)

Gets the designated column's table name.

column - the first column is 1, the second is 2, ... - int

returns: table name or "" if not applicable - java.lang.String

throws: java.sql.SQLException - if a database access error occurs

is-nullable clj

(is-nullable this column)

Indicates the nullability of values in the designated column.

column - the first column is 1, the second is 2, ... - int

returns: the nullability status of the given column; one of columnNoNulls, columnNullable or columnNullableUnknown - int

throws: java.sql.SQLException - if a database access error occurs

read-only? clj

(read-only? this column)

Indicates whether the designated column is definitely not writable.

column - the first column is 1, the second is 2, ... - int

returns: true if so; false otherwise - boolean

throws: java.sql.SQLException - if a database access error occurs

searchable? clj

(searchable? this column)

Indicates whether the designated column can be used in a where clause.

column - the first column is 1, the second is 2, ... - int

returns: true if so; false otherwise - boolean

throws: java.sql.SQLException - if a database access error occurs

signed? clj

(signed? this column)

Indicates whether values in the designated column are signed numbers.

column - the first column is 1, the second is 2, ... - int

returns: true if so; false otherwise - boolean

throws: java.sql.SQLException - if a database access error occurs

writable? clj

(writable? this column)

Indicates whether it is possible for a write on the designated column to succeed.

column - the first column is 1, the second is 2, ... - int

returns: true if so; false otherwise - boolean

throws: java.sql.SQLException - if a database access error occurs