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Convert string to number and add one
... the value I get from the id into a number and add one to it then pass the new value into the dosomething() function to use. When I tried this and the value is one I get back 11 not 2.
...
Proper way to initialize a C# dictionary with values?
...s Program
{
static void Main(string[] args)
{
var myDict = new Dictionary<string, string>
{
{ "key1", "value1" },
{ "key2", "value2" }
};
Console.ReadKey();
}
}
Can you try to reproduce it in a simple Console application an...
How do I use cascade delete with SQL Server?
...
You will need to,
Drop the existing foreign key constraint,
Add a new one with the ON DELETE CASCADE setting enabled.
Something like:
ALTER TABLE dbo.T2
DROP CONSTRAINT FK_T1_T2 -- or whatever it's called
ALTER TABLE dbo.T2
ADD CONSTRAINT FK_T1_T2_Cascade
FOREIGN KEY (Employe...
Gson - convert from Json to a typed ArrayList
...en to load the json string into a custom object.
logs = gson.fromJson(br, new TypeToken<List<JsonLog>>(){}.getType());
Documentation:
Represents a generic type T.
Java doesn't yet provide a way to represent generic types, so this class does. Forces clients to create a subcla...
SQL - Update multiple records in one query
...UPDATE id=VALUES(id),
a=VALUES(a),
b=VALUES(b),
c=VALUES(c);
This insert new values into table, but if primary key is duplicated (already inserted into table) that values you specify would be updated and same record would not be inserted second time.
...
Jdbctemplate query for string: EmptyResultDataAccessException: Incorrect result size: expected 1, ac
... method instead.
List<String> strLst = getJdbcTemplate().query(sql,new RowMapper {
public Object mapRow(ResultSet rs, int rowNum) throws SQLException {
return rs.getString(1);
}
});
if ( strLst.isEmpty() ){
return null;
}else if ( strLst.size() == 1 ) { // list contains exac...
Change Schema Name Of Table In SQL
...clare @sql varchar(8000), @table varchar(1000), @oldschema varchar(1000), @newschema varchar(1000)
set @oldschema = 'dbo'
set @newschema = 'exe'
while exists(select * from sys.tables where schema_name(schema_id) = @oldschema)
begin
select @table = name from sys.tables
where ...
How do I convert from BLOB to TEXT in MySQL?
...
I have had the same problem, and here is my solution:
create new columns of type text in the table for each blob column
convert all the blobs to text and save them in the new columns
remove the blob columns
rename the new columns to the names of the removed ones
ALTER TABLE mytable
...
How to join two sets in one line without using “|”
...an use union method for sets: set.union(other_set)
Note that it returns a new set i.e it doesn't modify itself.
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How to load external webpage inside WebView
...State) {
super.onCreate(savedInstanceState);
mWebview = new WebView(this);
mWebview.getSettings().setJavaScriptEnabled(true); // enable javascript
final Activity activity = this;
mWebview.setWebViewClient(new WebViewClient() {
@SuppressWarnin...