大约有 3,549 项符合查询结果(耗时:0.0247秒) [XML]

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SQL Case Sensitive String Compare

... collation, though the collations themselves are vendor-specific. Is yours SQL Server syntax? – onedaywhen Oct 20 '10 at 9:24 ...
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Avoid duplicates in INSERT INTO SELECT query in SQL Server

... In MySQL you can do this: INSERT IGNORE INTO Table2(Id, Name) SELECT Id, Name FROM Table1 Does SQL Server have anything similar? share | ...
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Find all tables containing column with specified name - MS SQL Server

... @Revious INFORMATION_SCHEMA views included in SQL Server comply with the ISO standard definition for the INFORMATION_SCHEMA., sys.columns, sys.tables is Microsoft Sql Server specific. – Tomasito Mar 18 '14 at 21:36 ...
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SQL Server IIF vs CASE

I recently came to know about the availability of IIF function in SQL Server 2012. I always use nested CASE in my queries. I want to know the exact purpose of the IIF statement and when should we prefer using IIF over CASE Statement in the query. I mostly use nested CASE in my queries. ...
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What's the purpose of SQL keyword “AS”?

You can set table aliases in SQL typing the identifier right after the table name. 9 Answers ...
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Escaping keyword-like column names in Postgres

... Some warning: Without the quotes PostgreSQL folds all identifiers to lowercase. MyTable, myTable and mytable are just the same. With the quotes this folding is not done. So "MyTable" is no more the same as mytable. – A.H. Oct ...
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Check if table exists in SQL Server

...ke this to be the ultimate discussion on how to check if a table exists in SQL Server 2000/2005 using SQL Statements. 28 An...
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How should I use try-with-resources with JDBC?

...separate method: public List<User> getUser(int userId) { String sql = "SELECT id, username FROM users WHERE id = ?"; List<User> users = new ArrayList<>(); try (Connection con = DriverManager.getConnection(myConnectionURL); PreparedStatement ps = con.prepareSta...
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Why is SQL Server 2008 Management Studio Intellisense not working?

...es, or other methods, then I hope I may be of assistance. I have Applied SQL 2008 R2 Service Pack 1 which you can download here http://www.microsoft.com/download/en/details.aspx?id=26727 32 Bit: SQLServer2008R2SP1-KB2528583-x86-ENU.exe 64 Bit: SQLServer2008R2SP1-KB2528583-x64-ENU.exe I have ap...
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What are the most common SQL anti-patterns? [closed]

... us who work with relational databases have learned (or are learning) that SQL is different. Eliciting the desired results, and doing so efficiently, involves a tedious process partly characterized by learning unfamiliar paradigms, and finding out that some of our most familiar programming pattern...