Oracle|sql Language Oracle Pl/sql Language Foundation
2002-8-23
Oracle Pl/sql Language Basics
Pl/sql is Oracle's extension of the standard database language,
How to check whether the SQL statements are correct when executing large SQL statements in Oracle stored procedures?
A large SQL statement is sometimes used in the preparation of a stored procedure in Oracle. However, you cannot see the
triggersA. Enabling and disabling triggers: When to prohibit: Prohibit data import and exportsql> ALTER TRIGGER aiu_itemfile DISABLE;sql> ALTER TRIGGER aiu_itemfile ENABLE;B. recompiling a trigger: After a database object has changedC. Deleting a triggersql> DROP TRIGGER Aiu_itemfile;19. Triggers and stored proceduresTrigger Stored proceduresWrite no parameter, return value has parameter, return value (parameter)Write cannot commit or rollback canCal
When you are running an SQL statement very slowly, do you want to ask Oracle how to execute this statement? The SQL _TRACE tool provided by Oracle allows you to know exactly what the SQL statement you run is. The execution process will be output to the trace file. The follow
Oracle SQL query optimization for Oracle Data Scanning
(2)
2. How to improve the performance of local range data scanning:
2.1 category and role of query conditions:
When we initiate a SQL statement with conditions, multiple query conditions are usually assigned to the statement. Among these query conditions, one or m
Troubleshooting of SQL plus logon failures caused by su switching in Oracle
Problem description:The Oracle database in the production environment suddenly fails to log on, and the oracle database in the rlwrap production environment suddenly fails to log on. rlwrap sqlplus "/as sysdba" reports the following error: rlwr
Oracle queries the average SQL Execution time (Code instance) through the v $ SQL view, oraclesqlOracle queries the average SQL Execution time (Code instance) through the v $ SQL View)
SELECT SQL _TEXT, EXECUTIONS total EXECUTIONS
Tags: character dev large database information Management DBA needs to run develop fromI. Classification of databases I. Classification of databases1. Small database: Access, Foxbase2. Medium database: Informix, SQL Server, MySQL3. Large database: Sybase, DB2, Oracle Second, how to reasonably use the database in the project, can be based on the following three aspects to start1, the size of the projectA, h
The ORACLE tutorial is the basics of Oracle PL/SQL language.
PL/SQL is an extension of ORACLE's standard database language. ORACLE has integrated PL/SQL into ORACLE servers and other to
The Oracle tutorial you are looking at is the introductory Foundation for Oracle Pl/sql languages.
Pl/sql is Oracle's extension of the standard database language, Oracle has integrated PL/SQL into
1. Oracle Introduction
Oracle is the first word for English translation of oracle (Oracle bone inscriptions) Unearthed from Yin.. Oracle is the world's largest supplier of information management software and services. It was founded in 1977 and is headquartered in Redwood sh
Oracle Export Import table (. SQL,. dmp file) two methods,. SQL. dmp
Two ways to export an import table (. SQL and. dmp files) from Oracle
Method 1: Export and Import SQL files
Export procedure
5. Select the table for data export
In order to learn the SQL statements of the database, after a long wait and learning, I finally learned how to use Oracle 10 Gb to learn the SQL statements of the database over the past few days.
Required Software: Oracle 10g, TOAD for Oracle
The installation of Oracle10g is
Related link parsing Oracle data scanning Oracle SQL optimization guide local scanning method (1) http://www.bkjia.com/database/201205/130424.html Parsing Oracle data scanning Oracle SQL optimization guide local scanning method (2
When writing a stored procedure in Oracle, a large SQL statement is sometimes used, but when viewed with the Pl/sql tool test you cannot see the SQL, and the discovery can be handled through an Oracle physical temporary table.
Add dbms_output.put_line ('
Oracle BASICS (1): Use the oracle instance and SQL * plus commandI. Three-tier structure of oracle Database1. Client: used to access databases. Such as sqlplus and pl/SQL dev. 2. database Server-oracle dbms (database management sy
Tags: having multiple columns Ges repeating return expression Common nbsp genPart two common SQL usage and considerations1. Exists and in2. Union and UNION ALL3. With AS4. ORDER BY5. GROUP BY6. Where and having7. Case and Decode 1.exits and in usage1) Description:1. Exists first to the appearance of the loop, each cycle of internal table query; In the inner table and the appearance of the hash connection2. Using exists
Label:In SQL Server, the number of affected rows returned is: If @ @RowCount In Oracle, the number of affected rows returned is: If sql%rowcount Cases: Sql server: Create procedureproc_test@Stat int=0,
@MsgId varchar( -)="',
as
BEGIN
UpdateT_mtSetStat=@Stat, Ostat=@Stat, Rpttime=Getdate()WhereM
download down the path of the package. There is one last problem, you need to set a character set, so that the query out of the data will not be garbled, write a batch processing Pldev. BAT is placed in the PL installation directory with the following contents:Set Nls_lang=simplified Chinese_china. Zhs16gbkPLSQLDev.exeThis character set, refers to the server side of the character set, please configure according to the actual situation.Finally, just double-click this batch, then fill in the acco
you created the soft link through the command line 3.checking Oracle Instant Client SDK Header directory ... configure:error:Oracle Instant Client SDK header files not Foun DWhether your SDK folder is located in the Instantclient directory. 4.ERROR: '/tmp/pear/temp/oci8/configure--with-oci8=instantclient,/usr/local/lib/instantclient ' failedThe path followed by the--with-oci8 is correct and should be the last directory we copied. Ubuntu 14.04 I
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