大约有 6,000 项符合查询结果(耗时:0.0352秒) [XML]

https://stackoverflow.com/ques... 

TSQL - How to use GO inside of a BEGIN .. END block?

... +1! This is the ONLY practical Answer so far for use in a SS SQLCMD Mode Script (i.e. a master deployment script) that calls (via :r command) other SS Scripts (i.e. sub-deployment scripts) with some of those calls inside if Statements. Oded's, mellamokb's and Andy Joiner's Answers of ...
https://stackoverflow.com/ques... 

Drop multiple tables in one shot in mysql

...in the correct order, nor whether they actually exist. N.B. this is for MySQL only (as in the question). Other databases likely have different methods for doing this. share | improve this answer ...
https://stackoverflow.com/ques... 

SQL SELECT speed int vs varchar

I'm in the process of creating a table and it made me wonder. 9 Answers 9 ...
https://stackoverflow.com/ques... 

difference between primary key and unique key

I'm using mysql database. I have a confusion between primary key and unique key. 15 Answers ...
https://stackoverflow.com/ques... 

What is the difference between declarative and imperative programming? [closed]

...you want; you are only saying what you want. You could say the same about SQL. One benefit of declarative programming is that it allows the compiler to make decisions that might result in better code than what you might make by hand. Running with the SQL example, if you had a query like SELECT ...
https://stackoverflow.com/ques... 

How can I get a list of all functions stored in the database of a particular schema in PostgreSQL?

I want to be able to connect to a PostgreSQL database and find all of the functions for a particular schema. 9 Answers ...
https://stackoverflow.com/ques... 

How to create a MySQL hierarchical recursive query

I have a MySQL table which is as follows: 15 Answers 15 ...
https://stackoverflow.com/ques... 

select * vs select column

...e for everything (including table data) is based on defined I/O Pages (in SQL Server for e.g., each Page is 8 kilobytes). And every I/O read or write is by Page.. I.e., every write or read is a complete Page of data. Because of this underlying structural constraint, a consequence is that Each row...
https://stackoverflow.com/ques... 

How do you return the column names of a table?

How would I return the column names of a table using SQL Server 2008? i.e. a table contains these columns- id, name, address, country and I want to return these as data. ...
https://stackoverflow.com/ques... 

Cast int to varchar

...m t9; select CONVERT(id, CHAR(50)) as colI1 from t9; See the following SQL — in action — over at SQL Fiddle: /*! Build Schema */ create table t9 (id INT, name VARCHAR(55)); insert into t9 (id, name) values (2, 'bob'); /*! SQL Queries */ select CAST(id as CHAR(50)) as col1 from t9; select C...