QSqlIndex¶
Synopsis¶
Functions¶
def
append
(field, desc)def
cursorName
()def
isDescending
(i)def
name
()def
setCursorName
(cursorName)def
setDescending
(i, desc)def
setName
(name)
Detailed Description¶
An index refers to a single table or view in a database. Information about the fields that comprise the index can be used to generate SQL statements.
- class PySide2.QtSql.QSqlIndex(other)¶
PySide2.QtSql.QSqlIndex([cursorName=””[, name=””]])
- param name:
str
- param cursorName:
str
- param other:
Constructs a copy of
other
.Constructs an empty index using the cursor name
cursorname
and index namename
.
- PySide2.QtSql.QSqlIndex.append(field, desc)¶
- Parameters:
field –
PySide2.QtSql.QSqlField
desc – bool
This is an overloaded function.
Appends the field
field
to the list of indexed fields. The field is appended with an ascending sort order, unlessdesc
is true.
- PySide2.QtSql.QSqlIndex.cursorName()¶
- Return type:
str
Returns the name of the cursor which the index is associated with.
See also
- PySide2.QtSql.QSqlIndex.isDescending(i)¶
- Parameters:
i – int
- Return type:
bool
Returns
true
if fieldi
in the index is sorted in descending order; otherwise returnsfalse
.
- PySide2.QtSql.QSqlIndex.setCursorName(cursorName)¶
- Parameters:
cursorName – str
Sets the name of the cursor that the index is associated with to
cursorName
.See also
- PySide2.QtSql.QSqlIndex.setDescending(i, desc)¶
- Parameters:
i – int
desc – bool
If
desc
is true, fieldi
is sorted in descending order. Otherwise, fieldi
is sorted in ascending order (the default). If the field does not exist, nothing happens.See also
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