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| author | Liang Qi <liang.qi@qt.io> | 2017-04-12 20:08:56 +0200 |
|---|---|---|
| committer | Liang Qi <liang.qi@qt.io> | 2017-04-12 20:08:56 +0200 |
| commit | 94c576cf6607d3e9880fdaf6c8a51216bf2d2147 (patch) | |
| tree | 32e42bdb8bcb869c894023f9494c2e2df310d585 /src/sql/doc/src/sql-programming.qdoc | |
| parent | 2ad7f6ddf5042d7442c97a89b083ca2853cf5721 (diff) | |
| parent | e893e657e5c976f96e7e627ca90531934129bf4b (diff) | |
Merge remote-tracking branch 'origin/5.8' into 5.9
Change-Id: I3bd83a839b16822035ed56a5cffe77bd6bc3f08d
Diffstat (limited to 'src/sql/doc/src/sql-programming.qdoc')
| -rw-r--r-- | src/sql/doc/src/sql-programming.qdoc | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/src/sql/doc/src/sql-programming.qdoc b/src/sql/doc/src/sql-programming.qdoc index 39381ff296..ece89a30ab 100644 --- a/src/sql/doc/src/sql-programming.qdoc +++ b/src/sql/doc/src/sql-programming.qdoc @@ -227,7 +227,7 @@ Databases, please refer to \l{Data Types for Qt-supported Database Systems} {this table}. - You can iterate back and forth using QSqlQuery::next(), + You can navigate within the dataset using QSqlQuery::next(), QSqlQuery::previous(), QSqlQuery::first(), QSqlQuery::last(), and QSqlQuery::seek(). The current row index is returned by QSqlQuery::at(), and the total number of rows in the result set @@ -242,11 +242,10 @@ \snippet sqldatabase/sqldatabase.cpp 33 - If you iterate through a result set only using next() and seek() - with positive values, you can call - QSqlQuery::setForwardOnly(true) before calling exec(). This is an - easy optimization that will speed up the query significantly when - operating on large result sets. + If you navigate within a result set, and use next() and seek() + only for browsing forward, you can call QSqlQuery::setForwardOnly(true) + before calling exec(). This is an easy optimization that will speed up + the query significantly when operating on large result sets. \section2 Inserting, Updating, and Deleting Records @@ -592,7 +591,7 @@ QDataWidgetMapper operates on a specific database table, mapping items in the table on a row-by-row or column-by-column basis. As a result, - using QDataWidgetMapper with a SQL model is as simple as using it with + using QDataWidgetMapper with an SQL model is as simple as using it with any other table model. \image qdatawidgetmapper-simple.png |