transformers names

--oracle See all of the user's table names, table comments, field names, field comments, empty, field type SELECT DISTINCT table_column.*, table_nallable. Data_type, table_nallable. NULLABLE from (SELECT DISTINCT Utc.table_name table_name, utc.comments table_comments, Ucc.column_name column_name, ucc.comments column_comments from User_tab _comments UTC, User_col_comments UCC where utc

ORACLE cannot use variables as column names and table names some of the individual validations are:1 DECLARE2Ename1 Emp.ename%TYPE;3TYPE Index_emp_type is TABLE of VARCHAR2( -)INDEX byPls_integer;4 index_emp Index_emp_type;5 BEGIN 6Index_emp (1) := 'E.ename';7 SELECTIndex_emp (1) intoEname1 fromEMP EWHEREE.empno=7369;8 EXECUTEIMMEDIATE'Select' ||Index_emp (1)|| 'From emp e where e.empno=7369' intoename1;

Often encountered some forget the table name situation, at this time only remember a approximate, at this time can be queried by the system table sysobjects to find the table name, such as to find the name of the table containing the user, can be implemented by the following SQL statement,Select *From sysobjectsWhere name like '%user% 'If you know the column name and want to find the name of the table that contains the column, you can add the system table syscolumns, and if you want to find all

Java -- mysql -- get all table names and table field names ., Mysqltable Obtain the names of all tables in the database: (Reference: http://stackoverflow.com/questions/2780284/how-to-get-all-table-names-from-a-database) DatabaseMetaData md = conn.getMetaData();ResultSet rs = md.getTables(null, null, "%", null);while (r

Label:SQL gets all database names, table names, stored procedures, and parameter lists1. Get all user names:SELECT name from Sysusers where status= ' 2 ' and islogin= ' 1 'islogin= ' 1 ' means accountIslogin= ' 0 ' indicates a roleStatus= ' 2 ' represents a user accountStatus= ' 0 ' indicates a system account2. Get all database names:SELECT Name from Master. sysdatabases ORDER by Name3. Get all table namesS

Oracle | sqlserver | names of all tables in access. Field Names * fromuser_tableswheretable_name: SELECT * FROMUSER_TABLES; other users: SELECT * FROMALL_TABLESWHEREOWNERUSER_NAME nbsp; Oracle | SQL server | names of all tables in access, Field Names * From user_tables where table_name = 'username' Use the following

Problems caused by simultaneous OracleSchema names and Object names Problems caused by simultaneous Oracle Schema names and Object names The Table name and Schema name are the same: The schema and table names are both Arwen.Schema Arwen contains a PKG package with the P

purpose of the command is very extensive, above just the pointer file name and directory name of the naming characteristics to extract some special cases. ii. basename and DirName ${} is not a command specifically designed to extract filenames and directory names, so the basename and DirName commands are specifically prepared for this.1, basenameThe purpose of this command is to extract the file name from the path, using the basename name [SUFFIX].

Get table names and comments:Select Relname as Tabname,cast (obj_description (Relfilenode, ' pg_class ') as varchar) as comment from Pg_class Cwhere relkind = ' R ' and Relname not-like ' pg_% ' and relname not-like ' sql_% ' ORDER by RelnameFilter out the Sub-table:Conditional and relchecks=0 can beGets the field name, type, comment, whether it is empty:SELECT col_description (A.attrelid,a.attnum) as Comment,format_type (A.atttypid,a.atttypmod) as ty

--oracle See all the user's table names, table gaze, field name, field gaze, is empty, field type SELECT DISTINCT table_column.*, table_nallable. Data_type, table_nallable. NULLABLE from (SELECT DISTINCT Utc.table_name table_name, utc.comments table_comments, Ucc.column_name column_name, ucc.comments column_comments from User_tab _comments UTC, User_col_comments UCC where utc.table_name = Ucc.table_name and utc.table_name not li

Explore Python Tornado framework support for subdomain names and wildcard domain names, pythontornado In fact, Tornado's support for subdomain names and wildcard Domain Names (except in particular, the following subdomain names and wildcard domain

First, create the order form order_id Order_name Order_price 1 Apples 6.5 2 Banana 3 3. Orange 2 Ii. Definition of entity classes Public Order { Private Integer ID; private String name; private float price; } C. xml file code The data XML is not found as follows The solution is as follows, method one Directly sets the returned database field name to the same as the attribute name of the entity class, and the return type (Resulttype) is set directly to the received entity class name. Method Two

Java Algorithm interview questions: Read all names from text files similar to the following, print duplicate names and repeated times, and sort by repeated times; read docx and read doc. Use the poi jar package to provide download, Read all names from text files similar to the following, print duplicate names and repea

One day when writing classes suddenly thought of this problem, the following to explain how to solve the problem.Define a class:class test{public: void setnum (); void getnum (); Private : int num;}; void Test::setnum () { ten;} void Test::getnum () { printf ("%d\n", num);}Run:int Main () { test one; One.setnum (); One.getnum (); return 0 ;}Console output 100, which indicates that member functions can be directly modified by the member variables wit

This article describes how Python traverses directories and replaces file names and directory names in batches. Share to everyone for your reference, specific as follows: #encoding =utf-8 #author: Walker #date: 2014-03-07 #summary: Depth traverse the specified directory and change the subdirectory and file name to lowercase #注意, this program is only for Windows, Windows file (folder) name is case-inse

Tags: select databaseUpdate Dept B, (select Group_concat (T.deptid), Group_concat (d.deptname separator '/') as Dname, T.id, t.deptname from (sel ECT Substring_index (Substring_index (A.deptid, ', ', b.help_topic_id+1), ', ', -1) as DeptID, a.ID, A.deptname from (select D.father as DeptID, D.id, D.deptname from Dept D) a join Mysql.help_topic B on b.help_topic_id GROUP by ID, deptname) C set b.location=c.dname where b.id = C.idEffectCopyright NOTICE: This article for Bo Master original article,

http://php.net/manual/zh/reserved.keywords.phpThese words have a special meaning in PHP. Some of them are like functions, some like constants ... But they are not, they are only part of the language structure. You cannot use any of them as constants, method names, or class names. However, they can be used as variable names, but this leads to confusion.Starting wi

Queries all the table names and field names in the database. SQLView All table names:1. Select name from sysobjectsWhere type = 'U' 2. Select * From information_schema.tables Query the names of all fields in the table:Select name from syscolumns whereId = object_id ('table name ') Select * From information_schem

Php obtains the summary of root domain names, and php obtains the summary of domain names. Php obtains the summary of root domain names. php obtains the summary of domain names. examples in this article summarize the methods for php to obtain root domain names and share them

View the deleted and expired domain names (mandatory for domain names) to view the list of international domain names to be deleted: Two foreign websites Http://www.pool.com/viewlist.aspx Http://www.deleteddomains.com/today_deletions.php Overseas sites are slow Query of expired domestic and international domain