Oracle 根据汉字返回拼音函数
oracle 根据汉字返回拼音函数，研究了一个多小时，才弄出来；上来贴代码吧。。 --------------Type Definition CREATE OR REPLAC
Oracle 根据汉字返回拼音函数，研究了一个多小时，，才弄出来；
上来贴代码吧。。
--------------Type Definition
CREATE OR REPLACE TYPE spell_code AS OBJECT
(
spell varchar2(10),
code Varchar2(10)
);
-------------Create Table Type
CREATE OR REPLACE TYPE t_spellcode AS TABLE OF spell_code;
--------------字典函数：
create or replace function f_getSpellcode return t_spellcode Pipelined
is
Begin
PIPE Row(spell_code('a', -20319));
PIPE Row(spell_code('ai', -20317));
PIPE Row(spell_code('an', -20304));
PIPE Row(spell_code('ang', -20295));
PIPE Row(spell_code('ao', -20292));
PIPE Row(spell_code('ba', -20283));
PIPE Row(spell_code('bai', -20265));
PIPE Row(spell_code('ban', -20257));
PIPE Row(spell_code('bang', -20242));
PIPE Row(spell_code('bao', -20230));
PIPE Row(spell_code('bei', -20051));
PIPE Row(spell_code('ben', -20036));
PIPE Row(spell_code('beng', -20032));
PIPE Row(spell_code('bi', -20026));
PIPE Row(spell_code('bian', -20002));
PIPE Row(spell_code('biao', -19990));
PIPE Row(spell_code('bie', -19986));
PIPE Row(spell_code('bin', -19982));
PIPE Row(spell_code('bing', -19976));
PIPE Row(spell_code('bo', -19805));
PIPE Row(spell_code('bu', -19784));
PIPE Row(spell_code('ca', -19775));
PIPE Row(spell_code('cai', -19774));
PIPE Row(spell_code('can', -19763));
PIPE Row(spell_code('cang', -19756));
PIPE Row(spell_code('cao', -19751));
PIPE Row(spell_code('ce', -19746));
PIPE Row(spell_code('ceng', -19741));
PIPE Row(spell_code('cha', -19739));
PIPE Row(spell_code('chai', -19728));
PIPE Row(spell_code('chan', -19725));
PIPE Row(spell_code('chang', -19715));
PIPE Row(spell_code('chao', -19540));
PIPE Row(spell_code('che', -19531));
PIPE Row(spell_code('chen', -19525));
PIPE Row(spell_code('cheng', -19515));
PIPE Row(spell_code('chi', -19500));
PIPE Row(spell_code('chong', -19484));
PIPE Row(spell_code('chou', -19479));
PIPE Row(spell_code('chu', -19467));
PIPE Row(spell_code('chuai', -19289));
PIPE Row(spell_code('chuan', -19288));
PIPE Row(spell_code('chuang', -19281));
PIPE Row(spell_code('chui', -19275));
PIPE Row(spell_code('chun', -19270));
PIPE Row(spell_code('chuo', -19263));
PIPE Row(spell_code('ci', -19261));
PIPE Row(spell_code('cong', -19249));
PIPE Row(spell_code('cou', -19243));
PIPE Row(spell_code('cu', -19242));
PIPE Row(spell_code('cuan', -19238));
PIPE Row(spell_code('cui', -19235));
PIPE Row(spell_code('cun', -19227));
PIPE Row(spell_code('cuo', -19224));
PIPE Row(spell_code('da', -19218));
PIPE Row(spell_code('dai', -19212));
PIPE Row(spell_code('dan', -19038));
PIPE Row(spell_code('dang', -19023));
PIPE Row(spell_code('dao', -19018));
PIPE Row(spell_code('de', -19006));
PIPE Row(spell_code('deng', -19003));
PIPE Row(spell_code('di', -18996));
PIPE Row(spell_code('dian', -18977));
PIPE Row(spell_code('diao', -18961));
PIPE Row(spell_code('die', -18952));
PIPE Row(spell_code('ding', -18783));
PIPE Row(spell_code('diu', -18774));
PIPE Row(spell_code('dong', -18773));
PIPE Row(spell_code('dou', -18763));
PIPE Row(spell_code('du', -18756));
PIPE Row(spell_code('duan', -18741));
PIPE Row(spell_code('dui', -18735));
PIPE Row(spell_code('dun', -18731));
PIPE Row(spell_code('duo', -18722));
PIPE Row(spell_code('e', -18710));
PIPE Row(spell_code('en', -18697));
PIPE Row(spell_code('er', -18696));
PIPE Row(spell_code('fa', -18526));
PIPE Row(spell_code('fan', -18518));
PIPE Row(spell_code('fang', -18501));
PIPE Row(spell_code('fei', -18490));
PIPE Row(spell_code('fen', -18478));
PIPE Row(spell_code('feng', -18463));
PIPE Row(spell_code('fo', -18448));
PIPE Row(spell_code('fou', -18447));
PIPE Row(spell_code('fu', -18446));
PIPE Row(spell_code('ga', -18239));
PIPE Row(spell_code('gai', -18237));
PIPE Row(spell_code('gan', -18231));
PIPE Row(spell_code('gang', -18220));
PIPE Row(spell_code('gao', -18211));
PIPE Row(spell_code('ge', -18201));
PIPE Row(spell_code('gei', -18184));
PIPE Row(spell_code('gen', -18183));
PIPE Row(spell_code('geng', -18181));
PIPE Row(spell_code('gong', -18012));
PIPE Row(spell_code('gou', -17997));
PIPE Row(spell_code('gu', -17988));
PIPE Row(spell_code('gua', -17970));
PIPE Row(spell_code('guai', -17964));
PIPE Row(spell_code('guan', -17961));
PIPE Row(spell_code('guang', -17950));
PIPE Row(spell_code('gui', -17947));
PIPE Row(spell_code('gun', -17931));
PIPE Row(spell_code('guo', -17928));
PIPE Row(spell_code('ha', -17922));
PIPE Row(spell_code('hai', -17759));
PIPE Row(spell_code('han', -17752));
PIPE Row(spell_code('hang', -17733));
PIPE Row(spell_code('hao', -17730));
PIPE Row(spell_code('he', -17721));
PIPE Row(spell_code('hei', -17703));
PIPE Row(spell_code('hen', -17701));
PIPE Row(spell_code('heng', -17697));
PIPE Row(spell_code('hong', -17692));
PIPE Row(spell_code('hou', -17683));
PIPE Row(spell_code('hu', -17676));
PIPE Row(spell_code('hua', -17496));
PIPE Row(spell_code('huai', -17487));
PIPE Row(spell_code('huan', -17482));
PIPE Row(spell_code('huang', -17468));
PIPE Row(spell_code('hui', -17454));
PIPE Row(spell_code('hun', -17433));
PIPE Row(spell_code('huo', -17427));
PIPE Row(spell_code('ji', -17417));
PIPE Row(spell_code('jia', -17202));
PIPE Row(spell_code('jian', -17185));
PIPE Row(spell_code('jiang', -16983));
PIPE Row(spell_code('jiao', -16970));
PIPE Row(spell_code('jie', -16942));
PIPE Row(spell_code('jin', -16915));
PIPE Row(spell_code('jing', -16733));
PIPE Row(spell_code('jiong', -16708));
PIPE Row(spell_code('jiu', -16706));
PIPE Row(spell_code('ju', -16689));
PIPE Row(spell_code('juan', -16664));
PIPE Row(spell_code('jue', -16657));
PIPE Row(spell_code('jun', -16647));
PIPE Row(spell_code('ka', -16474));
PIPE Row(spell_code('kai', -16470));
PIPE Row(spell_code('kan', -16465));
PIPE Row(spell_code('kang', -16459));
PIPE Row(spell_code('kao', -16452));
PIPE Row(spell_code('ke', -16448));
PIPE Row(spell_code('ken', -16433));
PIPE Row(spell_code('keng', -16429));
PIPE Row(spell_code('kong', -16427));
PIPE Row(spell_code('kou', -16423));
PIPE Row(spell_code('ku', -16419));
PIPE Row(spell_code('kua', -16412));
PIPE Row(spell_code('kuai', -16407));
PIPE Row(spell_code('kuan', -16403));
PIPE Row(spell_code('kuang', -16401));
PIPE Row(spell_code('kui', -16393));
PIPE Row(spell_code('kun', -16220));
PIPE Row(spell_code('kuo', -16216));
PIPE Row(spell_code('la', -16212));
PIPE Row(spell_code('lai', -16205));
PIPE Row(spell_code('lan', -16202));
PIPE Row(spell_code('lang', -16187));
PIPE Row(spell_code('lao', -16180));
PIPE Row(spell_code('le', -16171));
PIPE Row(spell_code('lei', -16169));
PIPE Row(spell_code('leng', -16158));
PIPE Row(spell_code('li', -16155));
PIPE Row(spell_code('lia', -15959));
PIPE Row(spell_code('lian', -15958));
PIPE Row(spell_code('liang', -15944));
PIPE Row(spell_code('liao', -15933));
PIPE Row(spell_code('lie', -15920));
PIPE Row(spell_code('lin', -15915));
PIPE Row(spell_code('ling', -15903));
PIPE Row(spell_code('liu', -15889));
PIPE Row(spell_code('long', -15878));
PIPE Row(spell_code('lou', -15707));
PIPE Row(spell_code('lu', -15701));
PIPE Row(spell_code('lv', -15681));
PIPE Row(spell_code('luan', -15667));
PIPE Row(spell_code('lue', -15661));
PIPE Row(spell_code('lun', -15659));
PIPE Row(spell_code('luo', -15652));
PIPE Row(spell_code('ma', -15640));
PIPE Row(spell_code('mai', -15631));
PIPE Row(spell_code('man', -15625));
PIPE Row(spell_code('mang', -15454));
PIPE Row(spell_code('mao', -15448));
PIPE Row(spell_code('me', -15436));
PIPE Row(spell_code('mei', -15435));
PIPE Row(spell_code('men', -15419));
PIPE Row(spell_code('meng', -15416));
PIPE Row(spell_code('mi', -15408));
PIPE Row(spell_code('mian', -15394));
PIPE Row(spell_code('miao', -15385));
PIPE Row(spell_code('mie', -15377));
PIPE Row(spell_code('min', -15375));
PIPE Row(spell_code('ming', -15369));
PIPE Row(spell_code('miu', -15363));
PIPE Row(spell_code('mo', -15362));
PIPE Row(spell_code('mou', -15183));
PIPE Row(spell_code('mu', -15180));
PIPE Row(spell_code('na', -15165));
PIPE Row(spell_code('nai', -15158));
PIPE Row(spell_code('nan', -15153));
PIPE Row(spell_code('nang', -15150));
PIPE Row(spell_code('nao', -15149));
PIPE Row(spell_code('ne', -15144));
PIPE Row(spell_code('nei', -15143));
PIPE Row(spell_code('nen', -15141));
PIPE Row(spell_code('neng', -15140));
PIPE Row(spell_code('ni', -15139));
PIPE Row(spell_code('nian', -15128));
PIPE Row(spell_code('niang', -15121));
PIPE Row(spell_code('niao', -15119));
PIPE Row(spell_code('nie', -15117));
PIPE Row(spell_code('nin', -15110));
PIPE Row(spell_code('ning', -15109));
PIPE Row(spell_code('niu', -14941));
PIPE Row(spell_code('nong', -14937));
PIPE Row(spell_code('nu', -14933));
PIPE Row(spell_code('nv', -14930));
PIPE Row(spell_code('nuan', -14929));
PIPE Row(spell_code('nue', -14928));
PIPE Row(spell_code('nuo', -14926));
PIPE Row(spell_code('o', -14922));
PIPE Row(spell_code('ou', -14921));
PIPE Row(spell_code('pa', -14914));
PIPE Row(spell_code('pai', -14908));
PIPE Row(spell_code('pan', -14902));
PIPE Row(spell_code('pang', -14894));
PIPE Row(spell_code('pao', -14889));
PIPE Row(spell_code('pei', -14882));
PIPE Row(spell_code('pen', -14873));
PIPE Row(spell_code('peng', -14871));
PIPE Row(spell_code('pi', -14857));
PIPE Row(spell_code('pian', -14678));
PIPE Row(spell_code('piao', -14674));
PIPE Row(spell_code('pie', -14670));
PIPE Row(spell_code('pin', -14668));
PIPE Row(spell_code('ping', -14663));
PIPE Row(spell_code('po', -14654));
PIPE Row(spell_code('pu', -14645));
PIPE Row(spell_code('qi', -14630));
PIPE Row(spell_code('qia', -14594));
PIPE Row(spell_code('qian', -14429));
PIPE Row(spell_code('qiang', -14407));
PIPE Row(spell_code('qiao', -14399));
PIPE Row(spell_code('qie', -14384));
PIPE Row(spell_code('qin', -14379));
PIPE Row(spell_code('qing', -14368));
PIPE Row(spell_code('qiong', -14355));
PIPE Row(spell_code('qiu', -14353));
PIPE Row(spell_code('qu', -14345));
PIPE Row(spell_code('quan', -14170));
PIPE Row(spell_code('que', -14159));
PIPE Row(spell_code('qun', -14151));
PIPE Row(spell_code('ran', -14149));
PIPE Row(spell_code('rang', -14145));
PIPE Row(spell_code('rao', -14140));
PIPE Row(spell_code('re', -14137));
PIPE Row(spell_code('ren', -14135));
PIPE Row(spell_code('reng', -14125));
PIPE Row(spell_code('ri', -14123));
PIPE Row(spell_code('rong', -14122));
PIPE Row(spell_code('rou', -14112));
PIPE Row(spell_code('ru', -14109));
PIPE Row(spell_code('ruan', -14099));
PIPE Row(spell_code('rui', -14097));
PIPE Row(spell_code('run', -14094));
PIPE Row(spell_code('ruo', -14092));
PIPE Row(spell_code('sa', -14090));
PIPE Row(spell_code('sai', -14087));
PIPE Row(spell_code('san', -14083));
PIPE Row(spell_code('sang', -13917));
PIPE Row(spell_code('sao', -13914));
PIPE Row(spell_code('se', -13910));
PIPE Row(spell_code('sen', -13907));
PIPE Row(spell_code('seng', -13906));
PIPE Row(spell_code('sha', -13905));
PIPE Row(spell_code('shai', -13896));
PIPE Row(spell_code('shan', -13894));
PIPE Row(spell_code('shang', -13878));
PIPE Row(spell_code('shao', -13870));
PIPE Row(spell_code('she', -13859));
PIPE Row(spell_code('shen', -13847));
PIPE Row(spell_code('sheng', -13831));
PIPE Row(spell_code('shi', -13658));
PIPE Row(spell_code('shou', -13611));
PIPE Row(spell_code('shu', -13601));
PIPE Row(spell_code('shua', -13406));
PIPE Row(spell_code('shuai', -13404));
PIPE Row(spell_code('shuan', -13400));
PIPE Row(spell_code('shuang', -13398));
PIPE Row(spell_code('shui', -13395));
PIPE Row(spell_code('shun', -13391));
PIPE Row(spell_code('shuo', -13387));
PIPE Row(spell_code('si', -13383));
PIPE Row(spell_code('song', -13367));
PIPE Row(spell_code('sou', -13359));
PIPE Row(spell_code('su', -13356));
PIPE Row(spell_code('suan', -13343));
PIPE Row(spell_code('sui', -13340));
PIPE Row(spell_code('sun', -13329));
PIPE Row(spell_code('suo', -13326));
PIPE Row(spell_code('ta', -13318));
PIPE Row(spell_code('tai', -13147));
PIPE Row(spell_code('tan', -13138));
PIPE Row(spell_code('tang', -13120));
PIPE Row(spell_code('tao', -13107));
PIPE Row(spell_code('te', -13096));
PIPE Row(spell_code('teng', -13095));
PIPE Row(spell_code('ti', -13091));
PIPE Row(spell_code('tian', -13076));
PIPE Row(spell_code('tiao', -13068));
PIPE Row(spell_code('tie', -13063));
PIPE Row(spell_code('ting', -13060));
PIPE Row(spell_code('tong', -12888));
PIPE Row(spell_code('tou', -12875));
PIPE Row(spell_code('tu', -12871));
PIPE Row(spell_code('tuan', -12860));
PIPE Row(spell_code('tui', -12858));
PIPE Row(spell_code('tun', -12852));
PIPE Row(spell_code('tuo', -12849));
PIPE Row(spell_code('wa', -12838));
PIPE Row(spell_code('wai', -12831));
PIPE Row(spell_code('wan', -12829));
PIPE Row(spell_code('wang', -12812));
PIPE Row(spell_code('wei', -12802));
PIPE Row(spell_code('wen', -12607));
PIPE Row(spell_code('weng', -12597));
PIPE Row(spell_code('wo', -12594));
PIPE Row(spell_code('wu', -12585));
PIPE Row(spell_code('xi', -12556));
PIPE Row(spell_code('xia', -12359));
PIPE Row(spell_code('xian', -12346));
PIPE Row(spell_code('xiang', -12320));
PIPE Row(spell_code('xiao', -12300));
PIPE Row(spell_code('xie', -12120));
PIPE Row(spell_code('xin', -12099));
PIPE Row(spell_code('xing', -12089));
PIPE Row(spell_code('xiong', -12074));
PIPE Row(spell_code('xiu', -12067));
PIPE Row(spell_code('xu', -12058));
PIPE Row(spell_code('xuan', -12039));
PIPE Row(spell_code('xue', -11867));
PIPE Row(spell_code('xun', -11861));
PIPE Row(spell_code('ya', -11847));
PIPE Row(spell_code('yan', -11831));
PIPE Row(spell_code('yang', -11798));
PIPE Row(spell_code('yao', -11781));
PIPE Row(spell_code('ye', -11604));
PIPE Row(spell_code('yi', -11589));
PIPE Row(spell_code('yin', -11536));
PIPE Row(spell_code('ying', -11358));
PIPE Row(spell_code('yo', -11340));
PIPE Row(spell_code('yong', -11339));
PIPE Row(spell_code('you', -11324));
PIPE Row(spell_code('yu', -11303));
PIPE Row(spell_code('yuan', -11097));
PIPE Row(spell_code('yue', -11077));
PIPE Row(spell_code('yun', -11067));
PIPE Row(spell_code('za', -11055));
PIPE Row(spell_code('zai', -11052));
PIPE Row(spell_code('zan', -11045));
PIPE Row(spell_code('zang', -11041));
PIPE Row(spell_code('zao', -11038));
PIPE Row(spell_code('ze', -11024));
PIPE Row(spell_code('zei', -11020));
PIPE Row(spell_code('zen', -11019));
PIPE Row(spell_code('zeng', -11018));
PIPE Row(spell_code('zha', -11014));
PIPE Row(spell_code('zhai', -10838));
PIPE Row(spell_code('zhan', -10832));
PIPE Row(spell_code('zhang', -10815));
PIPE Row(spell_code('zhao', -10800));
PIPE Row(spell_code('zhe', -10790));
PIPE Row(spell_code('zhen', -10780));
PIPE Row(spell_code('zheng', -10764));
PIPE Row(spell_code('zhi', -10587));
PIPE Row(spell_code('zhong', -10544));
PIPE Row(spell_code('zhou', -10533));
PIPE Row(spell_code('zhu', -10519));
PIPE Row(spell_code('zhua', -10331));
PIPE Row(spell_code('zhuai', -10329));
PIPE Row(spell_code('zhuan', -10328));
PIPE Row(spell_code('zhuang', -10322));
PIPE Row(spell_code('zhui', -10315));
PIPE Row(spell_code('zhun', -10309));
PIPE Row(spell_code('zhuo', -10307));
PIPE Row(spell_code('zi', -10296));
PIPE Row(spell_code('zong', -10281));
PIPE Row(spell_code('zou', -10274));
PIPE Row(spell_code('zu', -10270));
PIPE Row(spell_code('zuan', -10262));
PIPE Row(spell_code('zui', -10260));
PIPE Row(spell_code('zun', -10256));
PIPE Row(spell_code('zuo', -10254));
Return;
end;
--------------- 返回函数， 该函数会调用上面的字典函数
create or replace function f_getSpell(p_cnStr In varchar2,
p_sign In number Default Null)
return varchar2 as
lv_spell varchar2(200);
lv_temp Varchar2(10);
lv_char varchar2(10);
lv_bytes varchar2(100);
li_bytes Integer;
li_pos Integer;
begin
if p_cnStr is null then
return '';
end if;
for i In 1 .. length(p_cnStr) loop
lv_char := substr(p_cnStr, i, 1);
if lengthb(lv_char) = 1 then
lv_spell := lv_spell || lv_char;
elsif lengthb(lv_char) = 2 then
Select replace(substrb(dump(lv_char,1010),instrb(dump(lv_char,1010),'ZHS16GBK:')),'ZHS16GBK: ','') Into lv_bytes from dual;
li_pos:=instr(lv_bytes,',');
li_bytes:=substr(lv_bytes,1,li_pos-1)*256+substr(lv_bytes,li_pos+1)-256*256;
Select ascii(lv_char) - 256 * 256 Into li_bytes From dual;
If (li_bytes -10247) Then
lv_spell := lv_spell || '*';
Else
select max(spell)
Into lv_temp
from table(f_getSpellcode)
where code
if p_sign Is Null then
lv_spell := lv_spell || substr(lv_temp, 1, 1);
else
lv_spell := lv_spell || lv_temp;
end if;
End If;
elsif lengthb(lv_char) = 3 then
Select replace(substrb(dump(convert(lv_char, 'ZHS16GBK', 'UTF8'),
1010),
instrb(dump(convert(lv_char, 'ZHS16GBK', 'UTF8'),
1010),
'UTF8:')),
'UTF8: ',
'')
Into lv_bytes
from dual;
li_pos := instr(lv_bytes, ',');
li_bytes := substr(lv_bytes, 1, li_pos - 1) * 256 +
substr(lv_bytes, li_pos + 1) - 256 * 256;
If (li_bytes -10247) Then
lv_spell := lv_spell || '*';
Else
select max(spell)
Into lv_temp
from table(f_getSpellcode)
where code
if p_sign Is Null then
lv_spell := lv_spell || substr(lv_temp, 1, 1);
else
lv_spell := lv_spell || lv_temp;
end if;
End If;
end if;
end loop;
return lv_spell;
end;
--------------示例：
SQL> select f_getspell('安徽理工大学') from dual;
F_GETSPELL('安徽理工大学')
------------------------------------------------------------------------------
ahlgdx
SQL> select f_getspell('安徽理工大学',1) from dual;
F_GETSPELL('安徽理工大学',1)
----------------------------------------------------------------------------
anhuiligongdaxue
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How does Go language implement the addition, deletion, modification and query operations of the database?
Mar 27, 2024 pm 09:39 PM
Go language is an efficient, concise and easy-to-learn programming language. It is favored by developers because of its advantages in concurrent programming and network programming. In actual development, database operations are an indispensable part. This article will introduce how to use Go language to implement database addition, deletion, modification and query operations. In Go language, we usually use third-party libraries to operate databases, such as commonly used sql packages, gorm, etc. Here we take the sql package as an example to introduce how to implement the addition, deletion, modification and query operations of the database. Assume we are using a MySQL database.
How does Hibernate implement polymorphic mapping?
Apr 17, 2024 pm 12:09 PM
Hibernate polymorphic mapping can map inherited classes to the database and provides the following mapping types: joined-subclass: Create a separate table for the subclass, including all columns of the parent class. table-per-class: Create a separate table for subclasses, containing only subclass-specific columns. union-subclass: similar to joined-subclass, but the parent class table unions all subclass columns.
iOS 18 adds a new 'Recovered' album function to retrieve lost or damaged photos
Jul 18, 2024 am 05:48 AM
Apple's latest releases of iOS18, iPadOS18 and macOS Sequoia systems have added an important feature to the Photos application, designed to help users easily recover photos and videos lost or damaged due to various reasons. The new feature introduces an album called "Recovered" in the Tools section of the Photos app that will automatically appear when a user has pictures or videos on their device that are not part of their photo library. The emergence of the "Recovered" album provides a solution for photos and videos lost due to database corruption, the camera application not saving to the photo library correctly, or a third-party application managing the photo library. Users only need a few simple steps
An in-depth analysis of how HTML reads the database
Apr 09, 2024 pm 12:36 PM
HTML cannot read the database directly, but it can be achieved through JavaScript and AJAX. The steps include establishing a database connection, sending a query, processing the response, and updating the page. This article provides a practical example of using JavaScript, AJAX and PHP to read data from a MySQL database, showing how to dynamically display query results in an HTML page. This example uses XMLHttpRequest to establish a database connection, send a query and process the response, thereby filling data into page elements and realizing the function of HTML reading the database.
Detailed tutorial on establishing a database connection using MySQLi in PHP
Jun 04, 2024 pm 01:42 PM
How to use MySQLi to establish a database connection in PHP: Include MySQLi extension (require_once) Create connection function (functionconnect_to_db) Call connection function ($conn=connect_to_db()) Execute query ($result=$conn->query()) Close connection ( $conn->close())
How to handle database connection errors in PHP
Jun 05, 2024 pm 02:16 PM
To handle database connection errors in PHP, you can use the following steps: Use mysqli_connect_errno() to obtain the error code. Use mysqli_connect_error() to get the error message. By capturing and logging these error messages, database connection issues can be easily identified and resolved, ensuring the smooth running of your application.
Tips and practices for handling Chinese garbled characters in databases with PHP
Mar 27, 2024 pm 05:21 PM
PHP is a back-end programming language widely used in website development. It has powerful database operation functions and is often used to interact with databases such as MySQL. However, due to the complexity of Chinese character encoding, problems often arise when dealing with Chinese garbled characters in the database. This article will introduce the skills and practices of PHP in handling Chinese garbled characters in databases, including common causes of garbled characters, solutions and specific code examples. Common reasons for garbled characters are incorrect database character set settings: the correct character set needs to be selected when creating the database, such as utf8 or u
How to use database callback functions in Golang?
Jun 03, 2024 pm 02:20 PM
Using the database callback function in Golang can achieve: executing custom code after the specified database operation is completed. Add custom behavior through separate functions without writing additional code. Callback functions are available for insert, update, delete, and query operations. You must use the sql.Exec, sql.QueryRow, or sql.Query function to use the callback function.
