Insert

Insert may refer to:

See also

Insert (effects processing)

In audio processing and sound reinforcement, an insert is an access point built into the mixing console, allowing the user to add external line level devices into the signal flow between the microphone preamplifier and the mix bus.

Common usages include gating, compressing, equalizing and for reverb effects that are specific to that channel or group. Inserts can be used as an alternate way to route signals such as for multitrack recording output or line level direct input.

Insert jacks

Inserts can be balanced or unbalanced. Typically, higher-end mixers will have balanced inserts and entry level mixers will have unbalanced inserts. Balanced inserts appear as a pair of jacks, one serving as the send (out from the mixer) and the other serving as the return (back to the mixer.) Balanced insert jacks can be XLR, 1/4" TRS phone connector or Bantam TT.

Unbalanced inserts can also be a pair of jacks such as RCA or 1/4" TS (Tip Sleeve) phone connector. Again, one jack serves as send and the other serves as return.

Insert (SQL)

An SQL INSERT statement adds one or more records to any single table in a relational database.

Basic form

Insert statements have the following form:

The number of columns and values must be the same. If a column is not specified, the default value for the column is used. The values specified (or implied) by the INSERT statement must satisfy all the applicable constraints (such as primary keys, CHECK constraints, and NOT NULL constraints). If a syntax error occurs or if any constraints are violated, the new row is not added to the table and an error returned instead.

Example:

Shorthand may also be used, taking advantage of the order of the columns when the table was created. It is not required to specify all columns in the table since any other columns will take their default value or remain null:

Example for inserting data into 2 columns in the phone_book table and ignoring any other columns which may be after the first 2 in the table.

Advanced forms

Multirow inserts

A SQL feature (since SQL-92) is the use of row value constructors to insert multiple rows at a time in a single SQL statement: