大约有 1,948 项符合查询结果（耗时：0.0236秒） [XML]
Proper usage of Optional.ifPresent()
...isspellings on your profile page (VB.Net, Netbeans, SqlServer, PostGresql, MySql, and Linq, you can use my service. There is also a corresponding wordlist.
– Peter Mortensen
Apr 28 at 0:42
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When use getOne and findOne methods Spring Data JPA
... 8 hours to know the silly mistake.
I have testing spring+hibernate+dozer+Mysql project. To be clear.
I have User entity, Book Entity. You do the calculations of mapping.
Were the Multiple books tied to One user. But in UserServiceImpl i was trying to find it by getOne(userId);
public UserDTO ge...
SQL how to increase or decrease one for a int column in one command
...eral ways to do this. Since you did not specify a database, I will assume MySQL.
INSERT INTO table SET x=1, y=2 ON DUPLICATE KEY UPDATE x=x+1, y=y+2
REPLACE INTO table SET x=1, y=2
They both can handle your question. However, the first syntax allows for more flexibility to update the record ra...
How do SQL EXISTS statements work?
... FROM SUPPLIERS JOIN ORDERS ... on SQL Server, haven't tested on Oracle or MySQL lately.
– OMG Ponies
May 1 '11 at 16:40
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How to expand/collapse a diff sections in Vimdiff?
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gvim -d main.sql backup.sql &
I find that annoyingly one file has MySQL keywords in lowercase the other uppercase showing differences on practically every other line
:set diffopt+=icase
this updates the screen dynamically & you can just as easily switch it off again
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Create SQL script that create database and tables
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Anyway to do this is standard SQL for mysql for example?
– Benjamin Goodacre
Oct 21 '19 at 11:56
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Float vs Decimal in ActiveRecord
...In Rails 4.1.0, I have faced problem with saving latitude and longitude to MySql database. It can't save large fraction number with float data type. And I change the data type to decimal and working for me.
def change
change_column :cities, :latitude, :decimal, :precision => 15, :scale =...
What does -fPIC mean when building a shared library?
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@IsaA I was compiling a c-api mysql function from source today and it wouldn't build, I got /usr/bin/ld: /tmp/cc7hXILq.o: relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC so I added fPIC and it bui...
How to add Active Directory user group as login in SQL Server
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Is there any chance to create groups in mysql like above?
– uzay95
Jul 17 '12 at 11:14
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error: Unable to find vcvarsall.bat
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To be more precise, lfd.uci.edu/~gohlke/pythonlibs/#mysql-python and once downloaded open a terminal as admin and run python -m pip install <filename>
– arun
May 3 '16 at 18:54
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