pl sql sql statement ignored

Oracle series: PL/SQL tables 1. What is a PL/SQL table?First, PL/SQL tables and records are of the same composite data type. It can be seen as a user-defined data type.A pl/

Document directory 1. What is PL/SQL? 2. Advantages of PL/SQL 3. Simple PL/SQL Classification 4. PL/SQL programming specifications 5.

,-02292); DNO Scott.emp.deptno%TYPE;BEGINDNO:= Dept_no; DELETE fromScott.deptWHEREDeptno=DNO; EXCEPTION whenMyexcp Then DELETE fromScott.empWHEREDeptno=DNO; DELETE fromScott.deptWHEREDeptno=DNO; END; 4. User-defined exception handling We can declare our own exceptions in the Declarations section of any PL/SQL anonymous block, subroutine, or package. A user-defined exception is explicitly tri

Tags: style blog http color io using Java ar StrongSometimes we need to do some slightly more complex operations on the data in the database, and these operations are all one-time and are no longer used after they are exhausted.It is too cumbersome and wasteful to use stored procedures, and to be deleted when it is exhausted. and a single SQL cannot meet the requirements. This is the time to use the SQL

The SQL statement with parameters is executed on the database. Exec sp_executesql Eg: Exec sp_executesql N'Insert into lcs_sys_model ([model_guid], [model_name], [model_desp], [model_issys]) values (@ model_guid, @ model_name, @ model_desp, @ model_issys )', N' @ model_guid uniqueidentifier, @ model_name nvarchar (50), @ model_desp nvarchar (500), @ model_issys bit', @ Model_guid = 'f3cd1369-58c

ThinkPHP -- SQL query statement, ThinkPHP -- SQL statement I. Query Method ThinkPHP provides three basic query methods: String condition query, Index Array condition query, and object bar query. Component query. In most cases, we recommend that you use index arrays and objects as the query conditions, because they are

Detailed description of SQL statement execution sequence and SQL statement execution sequence Most of us do not need to deal with databases when we develop software. Especially for erp development, we have to deal with databases more frequently, because SQL is different from

1. What is the cursor? Oracle uses two types of cursor: explicit cursor and implicit cursor. No matter how many records are returned by the statement, PL/SQL implicitly declares a cursor for each SQL command, such as UPDATE, DELETE, and INSERT. To manage SQL

S =Select T. * From TW=Whereb=Between andl=Like '%'O = orderInsw = in (select a from a where a) SW=Select T. * from t where TSC *=Select count (*) from TST= Select T .*,T. rowid from TF=For updateu= Update t set T. where T 1. Copy the shortcuts.txt file to the X: \ Program Files \ PLSQL developer \ plugins directory. Pay attention to the permissions for win7. 2. Choose tools> perferences> editor> autoreplaces from the menu. 3. Restart PL/

If an online e-commerce system, we now need to be based on the order form reflected in the consumption of the customer simply divided into three categories of large and small and inserted into three tables. Order Form orders (order_id number, cust_id number, amount number); Small Customer table Small_cust (cust_id number, tot_amt number); Customer table Med_cust (cust_id number, tot_amt number); Large Customer table Big_cust (cust_id number, tot_amt number); If the total consumption amount

can be used. For example:Select department_id, last_nameFrom employeesWhere rownum Order by 1, 2;Break on department_id 5.3,The process of creating PL/SQL script files:Variable definition acceptSet Environment VariablesFormat control commandSpoolSQL statement using variablesSpool offClear format ControlReset Environment VariablesRelease variable 5.4,Reference no

 Pl-sql TriggerTriggers are a technique that is provided by many relational database systems. In Oracle systems, trigger-like procedures and functions have a PL/SQL block that declares, executes, and processes exceptions.① Trigger TypeTriggers are stored as separate objects in the database, unlike stored procedures,

is record --> declare the custom record type (ID integer not null: =-1 --> note: in this case, use the not null constraint, so assign the initial value; otherwise, an error is reported, name varchar2 (64) not null: = '[anonymous]'); rec1 rec1_t; --> declare rec1 and rec2 rec2_t; begin rec1.field1: = 'yesterday'; --> when assigning values and referencing values, rec1.field2: = trunc (sysdate-1 ); Dbms_output.put_line ('rec1 values are '| rec1.field1 |', '| rec1.field2); dbms_output.put_line ('re

determined by the position of this parameter. Int rowNum = cs. getInt (4); Int pageCount = cs. getint (5); Resultset rs = (resultset) cs. getobject (6); // check whether the System is correct. out. println ("rownum =" + rownum); System. out. println ("total page number:") + pagecount); While (rs. next () {system. out. println ("No.:" + rs. getInt (1) + "name" + rs. getstring (20) + "salary" ;}} Catch (exception e) {e. printstacktrace ();} Finally {close each link }}}A seemingly complex paging p

3.2. Compound Variables Composite variables are used to store multiple values. When you define a composite variable, you must use the PL/SQL Composite data type.PL/SQL includes PL/SQL records, PL/

The source of this article, in order to facilitate direct copy over. If there is infringement, please inform, thank youhttp://blog.csdn.net/chiclewu/article/details/14646687An Oracle 11g 64-bit version was installed in the virtual machine today, and when connected with PL/SQL developer, it was found that there was no database connection to TNS.It is considered that the