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+Sql: new method SqlUpdate::Column(const SqlSet& cols, const SqlSet& vals) supports Oracle-style multicolumn SET in UPDATE (UPDATE xxx set (A, B, C) = select A, B, C from yyy)

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+TSql: new variants Force[Schema]Update support incremental updates according to comparison of 'old' and 'new' row data

git-svn-id: svn://ultimatepp.org/upp/trunk@2570 f0d560ea-af0d-0410-9eb7-867de7ffcac7
This commit is contained in:
rylek 2010-07-27 08:05:41 +00:00
parent 83d052093d
commit 6388462fa4
6 changed files with 60 additions and 1 deletions
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13
uppsrc/Sql/Sql.cpp
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@ -236,7 +236,7 @@ struct sReadFields : public FieldOperator {
Sql *sql;
void Field(const char *name, Ref f) {
f = (*sql)[SqlId(name)];
sql->GetColumn(SqlId(name), f);
}
};
@ -262,6 +262,17 @@ void Sql::GetColumn(int i, Ref r) const {
cn->GetColumn(i, r);
}
void Sql::GetColumn(SqlId colid, Ref r) const
{
String s = ~colid;
for(int i = 0; i < cn->info.GetCount(); i++)
if(cn->info[i].name == s) {
GetColumn(i, r);
return;
}
r.SetNull();
}
Value Sql::operator[](int i) const {
Value v;
cn->GetColumn(i, v);