oracle pl sql questions

Tags: des style blog http color io os using AR1. Remote connection Oracle does not need to open Oracle Services, can be managed in the service, save a bit of resources2. Modify the tnsnames.ora file in the Oracle directory my directory is: D:\oracle\product\10.2.0\db_1\NETWORK\ADMIN\ Tnsnames.oraLast side add:Ora =(DE

After Oracle 10 Gb is installed, a table is created to write Chinese data. It is found that the PL/SQL developer tool cannot display Chinese normally. To display Chinese characters properly, the server must be consistent with the client encoding. Therefore, check. 1. Check the server code: Execute SQL Syntax: Selec

Oracle pl/SQL common functions, oracleplsql Functions On csdn, I also saw a post called Oracle common function 110. after a rough look, there are many data calculations, such as covariance. I don't think I have used much. I can see it today, but it is not very comprehensive. I have added it a little. I can check it lat

Oracle Database Programming: Develop PL/SQL subprograms and packages to develop PL/SQL subprograms and packages: subprograms: Compile rather than run at run time. Only calls can produce results. Subprograms are divided into store procedure and function, which are stored in t

1. Control Structure of PL/SQL, including selection structure, loop structure and jump Structure Rlwrap SQLPLUS spool to dynamic Log File Name Oracle SQLPLUS prompt settings Accelerate SQL return by setting SQLPLUS ARRAYSIZE (row prefetch)1. Select Structure(1) IF statement IF condition1 THEN statement1;[ELSIF conditio

the subquery, if the subquery is empty, then nothing will be inserted.4, the climax is coming--after removing the where in the subquery, that is, the select condition is definitely a value, it actually inserts all the records in Table E. Ah, fortunately the test library, the amount of data is small, but also executed 5s. Well, that's unusual. Delete all! Depending on the result set insert or need to be cautious ah, otherwise how much garbage data in practice.5, return to the original intention.

Tags: oracle plsql indexed viewA view and index of the start of PL/SQL basics PL/sql: Process language (Procedure Language) and structured language (structured Query Language)The combination of the programming language, is theSQLextensions that support multiple data types, s

Oracle Study--pl/sql Developer software errorThe blog is open at 51cto and CSDN.System environment:Operating system: Windows XP (64)Software: PL/SQL Devoloper 8.04Software, after normal installation, the following error occurred during use:650) this.width=650; "Src=" http://

The first time with PL/SQL developer This unofficial software, encountered a variety of difficulties, fortunately through the almighty Google has been all resolved, recorded down to be observed. The premise is to ensure that your remote Oracle server is all right.Microsoft Client SettingsUseOracleThe free Instant Client replaces the

Oracle | PL/SQL sets auto-increment of primary keys. Oracle does not set auto-increment of primary keys. You need to set the sequence and trigger to auto-increment of primary keys. Example: create a table menu: [SQL] create table menu (menuId number (10) not null primary key

record variable typeDeclare Type type_record_dept is record ( Deptno Dept.deptno%type, Dname Dept.dname%type, Loc Dept.loc%type ); Temp type_record_dept;Begin Temp.deptno: = 56; Temp.dname: = ' software '; Temp.loc: = ' gz '; Dbms_output.put_line (Temp.deptno | | "| | Temp.dname | | "| | TEMP.LOC);End--Declaring the record variable with RowTypeDeclare Temp Dept%rowtype;Begin Temp.deptno: = 57; Temp.dname: = ' it '; Temp.loc: = ' sz '; Dbms_output.put_line (Temp.de

, sum2 (deptno) 4, systimestamp 5 FROM emp 6 group by deptno; Deptno sum (SAL) SUM2 (DEPTNO) incluimestamp ------------------------------------------------------------------------------------------------------------ 30 9400 9406 24-JUN-11 08.31.19.722000 PM + 20 10875 10880 24-JUN-11 08.31.19.722000 PM + 10 8750 8753 24-JUN-11 08.31.19.722000 PM + SQL> We found that the results of sum (sal) and sum2 (deptno) are inconsistent. When we ap

expression after the while is re-determined to be true, only if the Boolean expression after the while is false. To end the entire loop loop.The syntax for the statement structure is as follows:[C, while ... Loop structureSql>--while...loopsql> declare 2 v_rlt Number (8): =-3; 3 begin 4 3.FOR ... Loop structureFor ... The Loop statement can traverse an integer of a range that is enclosed by the For and Loop keywords. When the loop is first entered, the loop range is determined and wi

Basic knowledge of oracle Database PL/SQL 1) Overview: the programming language formed by oracle procedural expansion in the standard SQL language is a unique feature of oracle, languages that support application development. Www.

Recently, data is being input into the Oracle database. The number of tables in the database is large, and there are many data records in some tables. Some have fewer data records. At the beginning, a few tables are input into the database, I found that the data volume in the table was too large. I was wondering if I could use one-time data input. I found it online and tried PL/

Weird error !! An error occurred while connecting adodb to oracle. However, PL/SQL can be used for normal connection lt; B gt; Warning lt;/B gt;: ocilogon () nbsp; \ adodb \ drivers \ adodb-oci8.inc.php lt;/B gt; weird error !! An error occurred while connecting adodb to oracle. However,

Tags: plsql installing Oracle Client InstallationDownload the 3 required packages (in order to connect the 11g database)1:oracle Client (Oracle clients)Http://www.oracle.com/technetwork/cn/database/enterprise-edition/downloads/112010-win64soft-086667-zhs.htmlDownload Win64_11gr2_client.zip Specific installation method can refer to Baidu2:

View and index of basic PL/SQL PL/SQL: a programming Language combined with a Structured Language (Structured Query Language). It is an extension of SQL and supports multiple data types, such as large objects and Collection types, you can use control statements such as condi

The plsql block that only contains the execution part setserveroutputon -- open the output option begindbms_output.put_line ( Only pl/SQL block including execution part set serveroutput on -- open the output option begin dbms_output.put_line ( Pl/SQL block that only contains the execution part Set serveroutput

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