大约有 6,000 项符合查询结果（耗时：0.0383秒） [XML]
Primary key/foreign Key naming convention [closed]
... same name in both tables (convention #2), you can use the USING syntax in SQL to save some typing and some boilerplate noise:
SELECT name, address, amount
FROM employees JOIN payroll USING (employee_id)
Another argument in favor of convention #2 is that it's the way the relational model was de...
How to enable Ad Hoc Distributed Queries
When I run a query with OPENROWSET in SQL Server 2000 it works.
4 Answers
4
...
Javascript fuzzy search that makes sense
...rt them in preference order.
I wrote some notes on Fuzzy String Search in SQL. See:
http://literatejava.com/sql/fuzzy-string-search-sql/
share
|
improve this answer
|
fol...
What is the difference between declarative and procedural programming paradigms?
...nguages which support the declarative programming paradigm:
yacc
Treetop
SQL
Regular Expressions
lex
XSLT
markup, troff, CSS, VHDL
Functional
Functional programming emphasizes the application of functions without side effects and without mutable state. The declarative systems above exhibit cert...
What's the use of session.flush() in Hibernate
...aid in above answers, by calling flush() we force hibernate to execute the SQL commands on Database. But do understand that changes are not "committed" yet.
So after doing flush and before doing commit, if you access DB directly (say from SQL prompt) and check the modified rows, you will NOT see th...
How can I get around MySQL Errcode 13 with SELECT INTO OUTFILE?
I am trying to dump the contents of a table to a csv file using a MySQL SELECT INTO OUTFILE statement. If I do:
13 Answers...
How to create relationships in MySQL
... this, I am trying to do what the rest of the class is doing, but with raw SQL commands with MySQL instead of using Access.
...
Cannot insert explicit value for identity column in table 'table' when IDENTITY_INSERT is set to OFF
...so: it's not an option that should be left on - by default, you should let SQL Server handle identity values - this is only intended as a last resort measure for very specific cases - not a general-purpose option to leave on or off at your leisure...
– marc_s
J...
Single quotes vs. double quotes in Python [closed]
...abuse it by having vim highlight everything inside triple single quotes as SQL.
– RoundTower
Jan 16 '12 at 22:26
|
show 2 more comments
...
How to fix “Incorrect string value” errors?
...hem. This fixed most of the errors, and made the application stop getting sql errors when it hit non-latin emails, too.
22...