大约有 37,000 项符合查询结果(耗时:0.0247秒) [XML]
How to get ERD diagram for an existing database?
...ings (also called referential integrity constraints) in a graph style. The table nodes and relations are layed out automatically, with a number of layout modes available. The resulting graph is unique as it displays all information in an optimal and readable layout.
from its site
...
Table row and column number in jQuery
How do I get the row and column number of the clicked table cell using jQuery, i.e.,
6 Answers
...
SQL server query to get the list of columns in a table along with Data types, NOT NULL, and PRIMARY
... to write a query on SQL server to get the list of columns in a particular table, its associated data types (with length) and if they are not null. And I have managed to do this much.
...
SQL set values of one column equal to values of another column in the same table
I have a table with two DATETIME columns.
5 Answers
5
...
Retrieve column names from java.sql.ResultSet
...tSetMetaData
e.g.
ResultSet rs = stmt.executeQuery("SELECT a, b, c FROM TABLE2");
ResultSetMetaData rsmd = rs.getMetaData();
String name = rsmd.getColumnName(1);
and you can get the column name from there. If you do
select x as y from table
then rsmd.getColumnLabel() will get you the retri...
“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
...into a column with a NOT NULL constraint.
Inserting a row to a partitioned table, but the values you insert don't map to a partition.
If you use REPLACE, MySQL actually does a DELETE followed by an INSERT internally, which has some unexpected side effects:
A new auto-increment ID is allocated....
Retrieve the maximum length of a VARCHAR column in SQL Server
I want to find the longest VARCHAR in a specific column of a SQL Server table.
10 Answers
...
method of iterating over sqlalchemy model's defined columns?
... it is actually much easier because if you inherit from Base, you have a __table__ attribute, so that you can do:
for c in JobStatus.__table__.columns:
print c
for c in JobStatus.__table__.foreign_keys:
print c
See How to discover table properties from SQLAlchemy mapped object - similar ...
How to make a div fill a remaining horizontal space?
...om the display property.
Basically you need to make the two divs act like table cells. So instead of using float:left, you'll have to use display:table-cell on both divs, and for the dynamic width div you need to set width:auto; also. The both divs should be placed into a 100% width container with ...
Table with fixed header and fixed column on pure css
I need to create a html table (or something similar looking) with a fixed header and a fixed first column.
20 Answers
...