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executing your DML/DDL statements The most common requirement and once-is connected to your HiveServer2, it's very simple-to-use your hive queRies interactively from Beeline command line interface. Let us execute one simple SELECT statement. 0:jdbc:hive2://> Select Stock_symbol,exchange_code,stock_date,stock_open from Stock_data limit 5;+ ————— + —————-+ ————-+ ————-+–+| Stock_symbol | Exchange_code | Stock_date | Stock_open |+ ————— + —————-+ ————-+ ————-+–+|

]]=function (Result) {successsuccess (result); Oh.removechild (OS);//Data acquisition after deleting OS};Five: Store data into script, get call interfacevar oh=document.getelementsbytagname (' head ') [0]; var os=document.createelement (' script '); os.src=json.url+ '? ' +STR; Oh.appendchild (OS); 1. Save the received data in a script with its src= "Https://sp0.baidu.com/5a1Fazu8AA54nxGko9WTAnF6hhy/su?wd=abbcb=show" Here is the equivalent of the data call where its true face is: show ({q

expression. You will understand how this new function supplements the LIKE operator and the INSTR, SUBSTR, and REPLACE functions. In fact, they are similar to existing operators, but now they have added powerful pattern matching functions. The searched data can be a simple string or a large number of text stored in the database character column. Regular Expressions allow you to search, replace, and verify data in a way you have never imagined before,

Oracle Database 10 GB You can use the recently introduced Oracle SQL regexp_like operator, regexp_instr, regexp_substr, and regexp_replace functions to play the role of a regular expression. You will understand how this new function supplements the like operator and the instr, substr, and replace functions. In fact, they are similar to existing operators, but now they have added powerful pattern matching functions. The searched data can be a simple s

/* Usage of the patindex function. Prepared by: Hopewell, Date: 2006/08/26 */The usage of the patindex function.Syntax format: patindex ('% pattern %', expression)Returns the position where the pattern string appears for the first time in the expression. The start value starts from 1.If no value is found in expression, the pattern string returns 0, which is a valid data type for all valid texts and strings.Describe the specific usage of this function: 1. patindex ('% pattern %', expression)The u

. connect to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0-64bit ProductionWith the Partitioning, OLAP, Data Mining and Real Application Testing optionsSQL> desc sde. owner; is the name empty? Type ----------------------------------------- -------- ------------------------- objectid not null number (38) pid number (10) id number (10) NAME NVARCHAR2 (50) NAME1 NVARCHAR2 (50)Place is a space table, and owner is an attribute table. The IDS of these two tables are associated fields. Fir

empty numbers on different platforms\aó^ #使用 ^\zó$ #使用 $# repeat match:#. ? * + {M,n}. *. *?1.: represents any character except the line break. If you want to remove the line break, add re after any character other than the line break. DotallPrint (Re.findall (' A.C ', ' abc A1c aAc AAAAACA\NC '))Print (Re.findall (' A.C ', ' abc A1c aAc AAAAACA\NC ', re. Dotall))2,? : Repeats 0 or 1 times on the left side of the character？ Cannot be used alonePrint (Re.findall (' ab ', ' a ab

Match number correlation‘.‘ Default match any character except \ n, if flag Dotall is specified, matches any character, including line breakThe ' ^ ' matches the beginning of the character, and if you specify the flags MULTILINE, this can also be matched on (r "^a", "\nabc\neee", Flags=re. MULTILINE)' $ ' matches the end of the character, or E.search ("foo$", "BFOO\NSDFSF", Flags=re. MULTILINE). Group () can also' * ' matches the character before the * number 0 or more times, Re.findall ("ab*",

// | Number, | yes or var REG: tperlregex; begin REG: = tperlregex. create (NiL); Reg. subject: = 'codegear Delphi 2007 '; Reg. regEx: = 'e | Delphi | 0'; // used | Mark Reg. replacement: = '◆ '; Reg. replaceall; showmessage (Reg. subject); // return: cod ◆ g ◆ ar ◆ 2 ◆ 7 freeandnil (REG); end; // + Is used. + repeats one or more var REG: tperlregex; begin REG: = tperlregex. create (NiL); Reg. subject: = 'a aa aaa aaaa AB ABB abbba A Ah a'; Re

// | The use of the number, | Yes, or it means. var 　 reg: TPerlRegEx; begin 　 reg := TPerlRegEx.Create(nil); 　 reg.Subject := 'CodeGear Delphi 2007'; 　 reg.RegEx　 := 'e|Delphi|0'; //使用了 | 记号 　 reg.Replacement := '◆'; 　 reg.ReplaceAll; 　 ShowMessage(reg.Subject); //返回: Cod◆G◆ar ◆ 2◆◆7 　 FreeAndNil(reg); end; + is used, + is repeated 1 or more var 　 reg: TPerlRegEx; begin 　 reg := TPerlRegEx.Create(nil); 　 reg.Subject := 'a aa aaa aaaa ab abb abbba

string where it first appears in expression expressions, starting at 1.The pattern string returns 0 if it is not found in expression expressions, and is a valid data type for all valid literals and strings.Describe the specific use of this function:1. PATINDEX ('%pattern% ', expression)The usage of '%pattern% ' is similar to the use of like '%pattern% ', which is to find out whether the pattern string is found by expression, find and return where it first appears.Such as:Select Patindex ('? b%

Delphi Regular Expression Syntax (2): or with duplicate//| use, | yes or no var reg:tperlregex; begin Reg: = tperlregex.create (nil' codegear Delphi '; Reg. RegEx ' e| Delphi|0 '//used | notation '//return: Cod G ar 2 7 freeandnil (REG); End; //+ use, + is repeat 1 or more var reg:tperlregex; begin Reg: = tperlregex.create (nil' a AA AAA AAAA ab ABB Abbba A yes a '; Reg. RegEx ' ab+ '//used A + notation, here is allowed after a 1 or more B'//r

Do "Dongling" need "tonic" Cloud unintentional posting onHttp://songshuhui.net/archives/63559 Almost everyone familiar with "Winter supplements"Famous saying. Every winter, we can always see the overwhelming "how to make up"Article. As for "Why do we need to fill in", we seldom see the introduction. For the Chinese, "Winter Solstice" is almost like the principle that "people need to eat when they are hungry. However, if we really want to investi

is, as long as a can match>>> Test_patterns ('a AC ab ABB ABBB',[('ab*','a followed by zero or more B')]) matching method: AB* Description: A followed by zeroorMore B text: A AC ab ABB ABBB found AB* At 0 to 1, Result:afound AB* At 2 to 3, Result:afound AB* At 5 to 7, Result:abfound AB* at 8 to 11, Result:abbfound AB* at 16, RESULT:ABBB>>> # + indicates that the pattern appears at least once # >>> te

starting position of the string, usually descriptor with other meta-characterse.g. ^ABC abcdefIn [8]: Re.findall (' ^abc ', ' abcdefgh ')OUT[8]: [' abc ']* Match string endMetacharacters: $Match rule: match the end position of the stringe.g. py$ a.pyIn [All]: Re.findall (' py$ ', ' a.py ')OUT[11]: [' py ']* Match DuplicatesMetacharacters: *Match rule: Matches the preceding occurrence of the regular expression 0 or more timese.g. ab* a ab abbbbb abbbbbbin [+]: Re.findall (' ab* ', ' aabbabbljlk

character, escape the special symbol------A\.B represents the line that matches the A.B, the actual property of the escape point, and does not represent any character;(6)*: match the preceding item 0 or more times---ab* means match a or AB or B or ABB, as long as one or more lines match the AB character;(7). *: matches any character---ab.* means match ab or either ABC or ABD, including spaces;(8)[]: matches any single character within the set---AB[CD

of the mode string t. If they are equal, continue to compare subsequent characters one by one, otherwise, repeat the string t from the second character of string s. So far, when each character in string t is the same as a continuous Character Sequence in string s, the pattern match is successful, at this time, the first character of string t in string s is the position of t in s. Otherwise, the pattern match fails. It can be seen that BF is a brute force algorithm, also known as simple matchin

. Subelement (New_xml, "name", attrib={"enrolled": "No"}) Age = ET. Subelement (name2, "age") Age.text = ' + ' et = et. ElementTree (New_xml) #生成文档对象et. Write ("Test.xml", encoding= "Utf-8", Xml_declaration=true) Et.dump (new_xml) #打印生成的格式Nine, re regular expressionsCommon Regular Expression symbols‘.‘ The default match is any character except \ n, if you specify flag Dotall, match any character, including the newline ' ^ ' match character beginning, and if you specify flags MULTILINE, this can

1. Common symbols for regular expressions '.' The default match is any character except \ n, if you specify flag Dotall, match any character, including the newline ' ^ ' match character beginning, and if you specify flags MULTILINE, this can also match (r "^a", "\nabc\neee", flags= Re. MULTILINE) ' $ ' matches the end of the character, or E.search ("foo$", "BFOO\NSDFSF", Flags=re. MULTILINE). Group () can also ' * ' match the characters before the * number 0 or more times, Re.fi

'] = Stu_data5.shutil Module1 ImportShutil2 3 #f1 = open ("random mod. Py")4 #F2 = open ("random_new. py", ' W ')5 #shutil.copyfileobj (f1,f2)6 7 #shutil.copyfile ("notes", R ' d:\123 ')8Shutil.make_archive ('www','Gztar', Root_dir=r'C:\Users\heshaochuan\PycharmProjects\py_s15\day6')6. Logging Module1 ImportLogging2 3Log_test = Logging.getlogger ('TEST')4Logging.basicconfig (filename='Wwwwwwwwww.log', level=Logging.info)5Logging.debug ('Mthgh')6Logging.info ('2131234324')7.re ModuleCommon Regula