source: trunk/src/sql/kernel/qsql.qdoc

Last change on this file was 846, checked in by Dmitry A. Kuminov, 14 years ago

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1/****************************************************************************
2**
3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the documentation of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:FDL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in a
14** written agreement between you and Nokia.
15**
16** GNU Free Documentation License
17** Alternatively, this file may be used under the terms of the GNU Free
18** Documentation License version 1.3 as published by the Free Software
19** Foundation and appearing in the file included in the packaging of this
20** file.
21**
22** If you have questions regarding the use of this file, please contact
23** Nokia at [email protected].
24** $QT_END_LICENSE$
25**
26****************************************************************************/
27
28/*!
29 \namespace QSql
30 \inmodule QtSql
31 \brief The QSql namespace contains miscellaneous identifiers used throughout
32 the Qt SQL library.
33
34 \inheaderfile QtSql
35 \ingroup database
36
37
38 \sa {QtSql Module}
39*/
40
41/*!
42 \enum QSql::Confirm
43 \compat
44
45 This enum type describes edit confirmations.
46
47 \value Yes
48 \value No
49 \value Cancel
50*/
51
52/*!
53 \enum QSql::Op
54 \compat
55
56 This enum type describes edit operations.
57
58 \value None
59 \value Insert
60 \value Update
61 \value Delete
62*/
63
64
65/*!
66 \enum QSql::Location
67
68 This enum type describes special SQL navigation locations:
69
70 \value BeforeFirstRow Before the first record.
71 \value AfterLastRow After the last record.
72
73 \omitvalue BeforeFirst
74 \omitvalue AfterLast
75
76 \sa QSqlQuery::at()
77*/
78
79/*!
80 \enum QSql::ParamTypeFlag
81
82 This enum is used to specify the type of a bind parameter.
83
84 \value In The bind parameter is used to put data into the database.
85 \value Out The bind parameter is used to receive data from the database.
86 \value InOut The bind parameter is used to put data into the
87 database; it will be overwritten with output data on executing
88 a query.
89 \value Binary This must be OR'd with one of the other flags if
90 you want to indicate that the data being transferred is
91 raw binary data.
92*/
93
94/*!
95 \enum QSql::TableType
96
97 This enum type describes types of SQL tables.
98
99 \value Tables All the tables visible to the user.
100 \value SystemTables Internal tables used by the database.
101 \value Views All the views visible to the user.
102 \value AllTables All of the above.
103*/
104
105/*!
106 \enum QSql::NumericalPrecisionPolicy
107
108 This enum type describes at which precision levels numercial values are read from
109 a database.
110
111 Some databases support numerical values with a precision that is not storable in a
112 C++ basic data type. The default behavior is to bind these values as a QString.
113 This enum can be used to override this behavior.
114
115 \value LowPrecisionInt32 Force 32bit integer values. In case of floating point numbers,
116 the fractional part is silently discarded.
117 \value LowPrecisionInt64 Force 64bit integer values. In case of floating point numbers,
118 the fractional part is silently discarded.
119 \value LowPrecisionDouble Force \c double values.
120 \value HighPrecision The default behavior - try to preserve maximum precision.
121
122 Note: The actual behaviour if an overflow occurs is driver specific. The Oracle database
123 just returns an error in this case.
124*/
125
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