大约有 6,000 项符合查询结果(耗时:0.0287秒) [XML]

https://stackoverflow.com/ques... 

Check if table exists and if it doesn't exist, create it in SQL Server 2008

I am writing a Stored procedure in SQL Server 2008. I need to check if a table exists in the database. If it doesn't then I need to create it. ...
https://stackoverflow.com/ques... 

How to set variable from a SQL query?

I'm trying to set a variable from a SQL query: 9 Answers 9 ...
https://stackoverflow.com/ques... 

How to create a backup of a single table in a postgres database?

... psql -U username -d database -1 -f your_dump.sql – rnaud Feb 3 '17 at 19:38 5 ...
https://stackoverflow.com/ques... 

List all sequences in a Postgres db 8.1 with SQL

I'm converting a db from postgres to mysql. 19 Answers 19 ...
https://stackoverflow.com/ques... 

Check if a temporary table exists and delete if it exists before creating a temporary table

...aps I'm not understanding the problem. The following works fine for me in SQL Server 2005, with the extra "foo" column appearing in the second select result: IF OBJECT_ID('tempdb..#Results') IS NOT NULL DROP TABLE #Results GO CREATE TABLE #Results ( Company CHAR(3), StepId TINYINT, FieldId TINYINT...
https://www.tsingfun.com/ilife/tech/258.html 

携程遭超长宕机:内部数据管理恐存严重漏洞 - 资讯 - 清泛网 - 专注C/C++及内核技术

...近期互联网重大事故频发,互联网的安全性、应急能力(包括但不限于关键业务的热备容灾等),正在接受检验,建议企业做好安全自查。 对于普通用户,腾讯安全专家建议,遇到此事不要过于恐慌,可紧密关注官方回应,如...
https://stackoverflow.com/ques... 

Real escape string and PDO [duplicate]

I'm using PDO after migrating away from the mysql library. What do I use in place of the old real_escape_string function? ...
https://stackoverflow.com/ques... 

Best practices for SQL varchar column length [closed]

Every time is set up a new SQL table or add a new varchar column to an existing table, I am wondering one thing: what is the best value for the length . ...
https://stackoverflow.com/ques... 

SQL error “ORA-01722: invalid number”

...ou have to make it a String yourself, marking the value explicitly in your SQL expression, to surround it by ' ' OR " ". – Franta Jun 25 at 15:00 add a comment ...
https://stackoverflow.com/ques... 

Oracle PL/SQL - How to create a simple array variable?

I'd like to create an in-memory array variable that can be used in my PL/SQL code. I can't find any collections in Oracle PL/SQL that uses pure memory, they all seem to be associated with tables. I'm looking to do something like this in my PL/SQL (C# syntax): ...